Announcement of the renewal of the staircase kit specialty site "www.arke.jp"

Perfect for renovations and remodeling! Why not create a stylish space with loft stairs?

Lofts can utilize the dead space of attics to create additional space beyond the actual floor area. This is particularly useful in compact sites where expanding the house further is not possible; having a loft can be very beneficial. While a staircase is essential for such a loft, don't you have the image that "loft stairs = moving a ladder is difficult or dangerous"? The loft stairs we propose are designed based on ergonomic principles for safety and security, and they are "installable," making them suitable for retrofitting in renovations and remodels. 【Features】 ■ Achieves space-saving without compromising the lifting function ■ Safety and security design based on ergonomic principles ■ Retrofitting design suitable for renovations and remodels ■ Appropriate for loft stairs ★ For inquiries by phone, please call here → TEL: 06-6584-8422 * When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Steel
• Wood products

A prefabricated spiral staircase with excellent durability due to zinc processing! Quick delivery is a major feature.

Steel zinc is an outdoor spiral staircase made of a combination of zinc-coated hot-processed steel, which is resistant to rust and oxidation, and PVC handrails. It features an adjustable design for easy remodeling. The kit includes all necessary screws and components, allowing you to start assembly on the same day the product arrives. ★ For inquiries by phone, please call → TEL: 06-6584-8422 * When calling, please mention "Ipros" as your reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Other metal materials

We promise a level of design and quality that cannot be compared to traditional ladders or loft stairs. A retrofitted design with adjustable dimensions, and a modular staircase!

"ZEN" is a smart and stylish loft staircase. It offers design and quality that cannot be compared to traditional ladders or loft stairs. It is a kit product that includes steps, posts, and a handrail on one side. We offer a "beautiful Havana Dark with a clean impression." It features a very beautiful nuance color characteristic of European products. With an adjustable design for dimensions, it is recommended for renovations. The kit includes screws and other components, so you can start assembly as soon as the product arrives. [Features] ■ Kit product that includes steps, posts, and a handrail on one side ■ Very beautiful nuance color characteristic of European products ■ Can be installed in either straight or round shapes ■ Easy to adopt for renovations with its add-on design *For more details, please refer to the PDF materials or feel free to contact us. ★ For inquiries by phone, please call here → TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Wood products

Excellent cost performance! A clean and simple handrail made of square materials.

The "Handrail Kit Series" is a handrail kit that includes one set of 150cm handrails. You can cut and connect the handrails to match the required distance for your needs. It is a very convenient product that allows for various shapes and angles to be constructed using joint parts and other components. Please specify the number of kits you need based on the required length. 【Features】 ○ Tarpaulin Gray (RAL7010) ○ Finished in a dark gray solid ○ A rare color not found in domestic products, making it a versatile color that is easy to coordinate For more details, please contact us. ★ For inquiries by phone, please call → TEL: 06-6584-8422 * When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• others

Natural design with wooden steps and steel lattice! There are plenty of size variations. Some items are in stock, so immediate delivery is possible.

"RING" is a spiral staircase made of a wooden tread and a steel pole. The smooth spiral PVC handrail has a wood grain finish that matches the steps. Its simple design makes it suitable for many situations. With various size options, it can accommodate everything from compact loft stairs to spacious living room stairs. It features an adjustable design for dimensions. Since it is sold as a kit that includes screws and other components, assembly can begin as soon as the product arrives. A new size compliant with building standards, measuring 178 cm, is now available. 【Features】 - Simple and natural design that works well in many situations - Abundant size variations - Diverse color options - Can be installed for both right-hand and left-hand ascent - Additional railings can be added for a cohesive look *For more details, please refer to the PDF materials or feel free to contact us. ★ For inquiries by phone, please call here → TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Wood products
• others

A flexible staircase that achieves infinite configurations with three types of patterns: Type I, Type L, and Type U!

"MAS" is a flexible staircase that achieves infinite configurations from three patterns: I type, L type, and U type. The wooden (beech laminated) treads are available in four colors: white, light walnut, black, and light. The steel columns come in three colors: white, black, and iron gray. The handrail design features vertical bars for the STEEL version and horizontal bars for the INOX version. 【Features】 ■ Achieves infinite configurations from three patterns: I type, L type, and U type ■ Treads (beech laminated) available in four colors and columns (steel) in three colors ■ Handrail design: vertical bars for STEEL, horizontal bars for INOX *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Wood products

A flexible staircase that achieves infinite configurations with three types of patterns: Type I, Type L, and Type U!

This product has been discontinued. Please inquire about successor products. "MAS" is a flexible staircase that achieves infinite configurations from three patterns: I-type, L-type, and U-type. The wooden (beech laminated) treads are available in four colors: white, light walnut, black, and light. The steel supports come in three colors: white, black, and iron gray. The handrail design features vertical lattice steel and horizontal INOX. 【Features】 ■ Achieves infinite configurations from three patterns: I-type, L-type, and U-type. ■ Create the staircase of your dreams with a combination of four tread colors (beech laminated) and three support colors (steel). *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call here → TEL: 06-6584-8422 *When calling, please mention "Ipros" as your reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Wood products

Authentic spiral staircases made using traditional Italian techniques. Custom sizes and color customization are also available.

■Design Traditional cast iron spiral staircases have a classical and heavy atmosphere, exuding genuine luxury. ■Adjustment Function The knockdown-style retrofit design kit can be adapted to existing buildings. ■Short Delivery Time The use of pre-finished kits enables a short delivery time. ■Delivery Route The knockdown design makes it easy to transport into existing buildings. ■Custom Orders We accommodate custom sizes and heights for our products (from one unit). ■Color Customization We produce in any color that meets the customer's wishes (from one unit). ★For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Other metal materials
• others

A flexible staircase that achieves infinite configurations with three types of patterns: Type I, Type L, and Type U!

"MAS" is a flexible staircase that achieves infinite configurations from three patterns: I type, L type, and U type. The wooden (beech laminated) treads are available in four colors: white, light walnut, black, and light. The steel supports come in three colors: white, black, and iron gray. The handrail design features vertical bars for the STEEL version and horizontal bars for the INOX version. 【Features】 ■ Achieves infinite configurations from three patterns: I type, L type, and U type ■ Can combine four colors of treads (beech laminated) with three colors of supports (steel) ■ Handrail design: vertical bars for STEEL and horizontal bars for INOX *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Wood products
• others

Durable double coating finish. Recommended as exterior stairs for coastal areas!

"SKY" is an outdoor spiral staircase designed to withstand stronger salt damage. It features a steel base material coated with zinc and finished with baked paint. It is available in four color variations. Additionally, a knockdown type that allows for quick installation is a significant feature. 【Features】 ■ Color & Material - Steel materials in white, black, gray, and dark gray ■ Space - Diameters of 120, 140, and 160 cm ■ Height - Height can be adjusted up to 377 cm with additional parts ■ Rotation - Both clockwise and counterclockwise ascent and descent are possible *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "Ipros" for reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• others

Quick and easy to assemble! Affordable outdoor straight staircase with a knockdown design.

"POPZINK" is a straight outdoor staircase made of steel, protected by zinc plating that is resistant to oxidation. It features an innovative adjustable function and is constructed with standard parts, allowing for quick and easy assembly. The PVC parts, such as handrails, are in a gray tone. 【Features】 ■ Straight outdoor staircase made of steel, protected by zinc plating that is resistant to oxidation ■ Horizontal structure with an innovative adjustable function ■ Quick and easy assembly *For more details, please refer to the PDF materials or feel free to contact us. ★ For inquiries by phone, please call here → TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Other metal materials
• others

Both clockwise and counterclockwise ascent and descent are possible! A simple design that completes a full ascent in half a turn!

The "SEMIRING" is a spiral staircase made of a wooden tread and a steel pole. The smooth spiral PVC handrail is finished in the same wood grain color as the steps, featuring a simple design that completes a full ascent in half a turn. You can add a railing (length 120 cm) to achieve a cohesive coordination. It is available in two sizes: diameter 168 and 178. 【Features】 ■ Spiral staircase made of steel poles ■ Simple design that completes a full ascent in half a turn ■ Available in two sizes: diameter 168 and 178 ■ Can be ascended or descended in both clockwise and counterclockwise directions ■ Railing can be added for a cohesive coordination *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call here → TEL: 06-6584-8422 *When calling, please mention "Ipros" as your reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Wood products
• others

Smooth lifting in a small space!!

A staircase that achieves an elegant finish even in a small space. This staircase is designed for use in very narrow spaces. The treads are specially shaped to allow for use in minimal space without compromising the lifting function. It is characterized by its ability to create the maximum usable space with minimal footprint. Stainless steel cables are installed parallel to the handrail between the handrail and the steps, matching the step shade as well. ★For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "Ipros" to us. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Wood products
• others

The beauty of flexible layout and robustness, reinventing the concept of assembly stairs.

The knock is a highly flexible open staircase. It can be freely customized to suit the owner's preferences, residential needs, and construction conditions. - Robustness due to a patented fixing system - Modular design that adapts to any space - Customizable colors and finishes - Accurate height adjustment with transparent polycarbonate spacers - High design quality that enhances interior coordination - Versatility for both professional and DIY users - Pricing *Customers considering DIY should think carefully. ★For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "I saw it on Ipros." Business hours: Monday to Friday, from 10 AM to 5 PM.

• Wood products

The modular staircase "kompact" allows for installation tailored to each customer's space with 156 silhouette patterns.

This is a modular staircase that can be customized into your preferred form with 156 different configuration patterns. It is the only staircase that can accommodate various requests such as riser height, width, height, depth, and rotation. The specifications include 156 types ranging from straight stairs (Kompact I) to 90-degree corner stairs (Kompact L) and 180-degree corner stairs (Kompact U), allowing for flexible responses to customer needs in any space. The treads and handrails are made of beech wood, available in two colors: light and dark. The steel parts can be chosen from three colors: black (RAL 9017), white (RAL 9010), and gray (RAL 9006). The point parts will match the color of the steel parts, with black accompanying black, and gray accompanying gray and white. ★ For inquiries by phone, please call → TEL: 06-6584-8422 * When calling, please mention "Ipros" as your reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Wood products
• others

A simple and authentic spiral staircase made of natural wood and steel.

KLAN consists of beach wood steps, beautifully painted steel posts, and wooden-style handrails (with an aluminum core inside PVC). It features an ergonomic design for safety and security, making it ideal for renovations and remodeling with its retrofitting design. The advantages of space-saving and the option for clockwise or counterclockwise installation allow for a down step in your preferred position. It is recommended for installation in spaces where aesthetics are important, such as living rooms and entrance halls. ★ For inquiries by phone, please call → TEL: 06-6584-8422 * When calling, please mention "Ipros" as your reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Wood products
• others

Durable and non-slip polyurethane panels arranged! Simple indoor spiral staircase "STEEL".

"STEEL" is a spiral staircase that ensures safety and security. It features built-in press molding with a baked-on finish, and is equipped with durable, non-slip polyurethane panels (gray) to ensure safety and security. The color options include RAL9010 (EU standard) white and chrome, typical of European products, along with a vibrant color series. It offers a realistic price point while maintaining excellent quality. 【Features】 ■ Built-in press molding ■ Beautiful finish with baked-on coating ■ Durable, non-slip polyurethane panels ensure safety and security ■ Balances realistic pricing with outstanding quality ■ Available for both right-hand and left-hand ascent and descent *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call: TEL: 06-6584-8422 *When calling, please mention "Ipros" as your reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Steel
• others

Recommended for retrofitting after renovations due to its assembly design! Italian-designed spiral staircase.

The "CIVIK" is a modern spiral staircase with an all-steel construction and powder-coated finish. Designed based on ergonomic principles, the spiral staircase can be installed in any location, and the downward steps are smooth. All components are built-in press-formed, ensuring safety and security with anti-slip panels. 【Features】 ■ Color - Steel available in three colors (White, Black, Gray) ■ Space - Floor diameter of 140 or 160 cm ■ Height - Adjustable up to 376 cm with additional parts ■ Rotation - Can ascend and descend in both clockwise and counterclockwise directions ■ Options - Add a railing for a cohesive design *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "Ipros" as your reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• others

Make access to lofts and attic spaces smarter!

"Magia" is a compact spiral staircase. It provides smarter access to spaces like lofts and attics where you want to move up and down in a space-saving manner. The treads are available in white and black MDF, or a mixed color. The steel parts, such as the supports, are white. 【Features】 ■ Compact design ■ Treads in white, black, or mixed color MDF ■ Steel parts in white ■ Size: Floor dimensions 118 x 66 cm (for 12 steps) * Import arrangements and actual import costs will be added after order confirmation. * Specifications and prices are subject to change without notice. * For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call → TEL: 06-6584-8422 * When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• Steel
• others

A spiral staircase with a "minimalist design" that can match any interior image.

"SLIM" is a sophisticated indoor spiral staircase designed with elegant, very light lines and strong steel. We offer four standard colors and three custom colors, allowing it to match any interior image. The combination of double handrails, slender stainless steel tubes, and extremely thin treads has resulted in an innovative staircase kit. 【Features】 - Designed with elegant, very light lines and strong steel - Composed of 12, 13, 14, or 15 treads (up to a height of 356 cm) and handrails - Available in three sizes: diameter 110 cm, 130 cm, and 150 cm *For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call → TEL: 06-6584-8422 *When calling, please mention "Ipros" as your reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• others

Classic steel now available in five colorful options! Beautifully finished stairs.

"SteelColor" features a beautiful finish with powder coating on a steel substrate. You can choose from five color variations: red, green, yellow, blue, and black. The delivery time is two weeks for production, and it is imported from Italy. The transportation period is four weeks by air (cost borne by the customer) or over two months by original container ship (no cost). 【Specifications】 ○ Standard kit with 13 steps (including landing, 12 treads, handrails, and child posts) ○ Baked-on paint on a steel substrate ○ Indoor spiral staircase ○ Railing kit (optional) ideal for stair openings such as atriums For more details, please contact us or download the catalog. ★ For inquiries by phone, call here → TEL: 06-6584-8422 * When calling, please mention "I saw it on Ipros." Business hours: Monday to Friday, from 10 AM to 5 PM.

• others

Design and functionality with a square spiral. A variety of color combinations available.

The "CUBE" is a spiral staircase with a square silhouette. It is a combination of wood and steel. The steel is available in four colors (white, chrome, black, gray), and the wooden steps can be chosen in two colors (light, dark). You can add a handrail as an option to achieve a cohesive design. 【Features】 ■ Colors - Steel is available in four colors (white, chrome, black, gray) - Wooden steps are available in two colors (light, dark) ■ Space - Floor diameter of 118 or 138 cm (the staircase dimensions plus 5 cm will be the opening area) * The basic CUBE kit does not include handrails other than the landing as an option. * Import arrangements will be made after the order is received. * For more details, please refer to the PDF document or feel free to contact us. ★ For inquiries by phone, please call → TEL: 06-6584-8422 * When calling, please mention "I saw it on Ipros." Business hours: Monday to Friday, from 10 AM to 5 PM.

• others

A resin spiral staircase that allows you to enjoy a design, texture, and color unique to Italy.

[As of December 2021] This product will be discontinued once stock runs out. We are currently not providing catalogs. If you are considering purchasing outlet products, please feel free to contact us. 'Techne' is a spiral staircase molded from special resin, offering a design, texture, and color unique to Italy. You can also choose from two types of handrails: the simple vertical slatted handrail "linear" and the fabric-covered handrail "skin." [Features] ■ Available in three colors (red, white, green) ■ Choose from two types ■ Space diameter options: 123/143/163/170 cm ■ Standard kit height: 13 steps (H267–306 cm) ■ Adjustable with optional parts (206 cm–377 cm) *Specifications and prices are subject to change without notice. *For more details, please refer to the PDF document or feel free to contact us. TEL: 06-6584-8422 *When calling, please mention "Ipros" as a reference. Business hours: Monday to Friday, 10 AM to 5 PM.

• others

5 color variations! A staircase designed with functionality and style. [As of August 2023] This product has been discontinued.

WALL is made of 100% solid beach wood and is available in five colors: Havana Dark, Bleached, Taupe, Light, and Dark. We offer two types of steps: one for the top tier fixed to the floor (with grooves to secure it to the floor and wall) (fig.1/2) and one for installation on the side wall (fig.1a/2sa). 【Features】 ○ Straight staircase design ○ Riser (R) and tread (G) can be freely configured ○ Recommended riser height is 21cm, and recommended tread depth is 21cm or more (tread board size is 30cm) For more details, please contact us or download the catalog. ★ For inquiries by phone, please call here → TEL: 06-6584-8422 * When calling, please mention "Ipros" as your reference. Business hours: Monday to Friday, from 10 AM to 5 PM.

• others

This valve is designed in accordance with Japanese standards for applications in chemicals, petrochemicals, reactive monomers, fire-resistant and flammable substances, paper pulp, and more. Main Features Adopts a stem protrusion prevention structure. The seat features a lip structure that enhances the durability of the seat. Additionally, even in the event of seat burn-through, it quickly prevents seat leakage through metal touch. The E seat is excellent in pressure resistance and heat resistance, and its white color eliminates concerns about color contamination. To prevent gland leakage, a re-tightenable gland flange type is adopted. Complies with JIS flange specifications. Electrostatic discharge prevention design according to ISO 17292. Achieves reliable airtightness with a bidirectional flow valve design according to API 598. Fire-safe structure based on ISO 10497:2022 / API 607 8th edition (certified). Atmospheric pollution prevention structure certified to ISO 15848-1 Class BH C03 (certified). Body materials of SCS13A and SCS14A are available. Precision casting. Adopts ISO 5211 top mount, allowing actuator installation without touching the pressure-resistant component, the gland bolt.

IsoLite Industrial 1600SF Blanket with 3mm thickness has arrived. ■ This product is not subject to the Specific Chemical Substances Hazard Prevention Regulations (Tokka Regulations) by the Ministry of Health, Labour and Welfare. For more details, please contact us.

Fukuda Co., Ltd. has been pursuing leak detection for 60 years and is committed to advancing the future of leak testing. 【 Supporting Various Leak Tests: Air Leak Test / Gas Leak Test (Hydrogen Gas, Helium Gas) 】 We develop, manufacture, and sell leak testing equipment to inspect airtightness and sealing properties. We will propose the appropriate testers and devices for each inspection target. 【 Target Industries and Examples of Inspection Targets 】 - Automotive Industry: Engines, FC components, valves and piping, various parts - Electronic Components Industry: Smartphones, keyless switches, various small sensors - Pharmaceuticals / Food / Cosmetics Industry: Bottle containers, syringes, vials, eye drop containers, pillow packaging, PTP packaging We will propose the most suitable leak testers for each industry. 【 ISO Certification 】JIS Q 9001:2015 (ISO 9001:2015)

Thank you for always using Paper Logic. We would like to inform you about our support system during the year-end and New Year holidays. ■ Holiday Period: December 27, 2025 (Saturday) to January 4, 2026 (Sunday) During the above period, customer support via inquiry forms and emails will be suspended. Inquiries will be accepted, but responses will be provided sequentially starting from January 5, 2026 (Monday). Please note that various functions, including electronic contracts, can still be used as usual during the holiday period. ■ Contact Information for This Matter Please contact us via the [Inquiry Form]. https://paperlogic.co.jp/contact/ We sincerely apologize for any inconvenience this may cause and appreciate your understanding. We look forward to your continued use of Paper Logic.

We would like to express our sincere gratitude for your continued support. We regret to inform you that our company will be closed for the year-end and New Year holidays during the period mentioned below. We kindly ask for your understanding. Please note that during the year-end and New Year period, we expect congestion in shipping services, and depending on the product, it may take longer than usual for delivery. We apologize for the inconvenience and ask that you place your orders with ample lead time. ■ Year-end and New Year Holiday Period From Saturday, December 27, 2025, afternoon to Sunday, January 4, 2026. *Normal operations will resume on Monday, January 5, 2026. ■ Regarding Year-end Shipments - For in-stock items, orders placed by the morning of Thursday, December 25, will be shipped on Friday, December 26. - For made-to-order items, we will handle them after the New Year. - Please note that there will be no shipping operations on Saturday, December 27. We apologize for any inconvenience this may cause our customers and appreciate your understanding and cooperation.