A group of manufacturing experts called "Yokohama Factory," consisting of experienced small factories from Yokohama and Kawasaki.

An alternative to screws, welding, and adhesive bonding! Capable of joining dissimilar materials, with numerous applications in automotive parts, etc. *Video available.

"Rivet processing" is a type of joining method that connects multiple parts and is used in many industrial products, including automobiles. Among these, our company's specialty, "spin riveting" using rivets, is adopted in many functional components because it offers high rigidity while also being usable in movable parts. Additionally, it serves as an alternative to joining methods such as screws, welding, and adhesives, providing the significant advantage of securing movable parts without loosening. You can also find it in everyday items like scissors and wheels. 【Advantages of Rivet Processing】 ● High precision at low cost ● Strong rigidity in joints ● Recommended for joining movable parts ● Capable of joining dissimilar materials *Video "Understanding Rivet Processing in 60 Seconds" is available below. *For more details, please download the catalog or contact us.

• Contract manufacturing

There are numerous adoption results in automotive parts and more! We are currently publishing photos of parts examples! We also have videos with tips on riveting processing!

"Rivet processing" is a method of joining multiple parts and is used in many industrial products, including automotive parts. At Izawa Manufacturing, there are many successful applications in automotive parts, and the published photos of parts are examples of these implementations. 【Advantages of Rivet Processing】 ● High precision at low cost ● Strong rigidity in joints ● Recommended for joining movable parts ● Capable of joining dissimilar materials *Video "Understanding Rivet Processing in 60 Seconds" is available on our website. For more details, please download the catalog or contact us.

• Contract manufacturing

Spin riveting is a riveting process that can be used for joining dissimilar materials and for movable parts.

"Spin riveting" is a riveting process that involves applying pressure with a rotating insert on the tip of the rivet. By evenly applying pressure to the rivet, it allows for processing with less force, ensuring precision and maintaining rigidity. Additionally, it can be used for joining dissimilar materials and movable parts. Our company achieves high productivity and quality through semi-automated operations using spin riveting. 【Assembly Processing Achievements】 ◆ Automotive parts, components for nursing robots, printing machine parts, electronic device parts ◆ Construction waterproofing materials ◆ Hairpins for wigs *We accommodate riveting and assembly processes tailored to customer needs. Assembly videos are available on our company website. For more details, please contact us.

• Processing Contract

Joining movable parts, joining dissimilar materials, and achieving high precision and rigidity with spin riveting!

"Rivet processing" is one of the methods for joining multiple materials together. The "spin riveting" technique we employ applies uniform pressure to the tip of the rivet using a rotating insert, allowing for processing with less pressure. The advantages of spin riveting include high rigidity, the ability to join dissimilar materials, and suitability for joining movable parts. Rivets are available in various sizes, and the shape of the rivet can be selected. - The finished shape of the rivet can vary based on the choice of insert. - Inserts can accommodate shapes such as "mountain type," "flat type," and "bowl type." - Rivet sizes range from φ1 to φ14 mm, and we can accommodate over 30 different materials. [Assembly Processing Achievements] - Automotive parts - Parts for nursing care robots - Construction waterproofing materials - Printing machine parts - Hairpins for wigs - Electronic device parts We offer rivet processing and assembly tailored to our customers' needs. Please contact us for more details.

• Processing Contract

Cost-reducing riveting process. Ideal for manufacturing assembly!

"Riveting" is a type of processing method used to join multiple parts together, and it is employed in many industrial products, including automobiles. In particular, "spin riveting" using rivets is adopted for many functional components because it can be used in movable parts while maintaining high rigidity. You can also see it in everyday items like scissors and wheels. 【Advantages of Riveting】 ● High precision at low cost ● Strong rigidity in joints ● Recommended for joining movable parts ● Capable of joining dissimilar materials *Video "Understanding Riveting in 60 Seconds" is available on our website. For more details, please download the catalog or contact us.

• Contract manufacturing

NG rate less than 0.0001%! Achieving cost reduction with high productivity and stable quality through semi-automatic operations.

Iizawa Manufacturing Co., Ltd. delivers products tailored to our customers' needs with "high technology" and "reliable quality" based on over 60 years of experience and achievements. Assembly is performed by skilled staff who have cleared our unique training program, using machine assembly and high-level handwork that cannot be replicated by machines, achieving a defect rate of less than 0.0001%. Our self-developed assembly equipment enables semi-automated work, achieving high productivity and stable quality while reducing costs. [Assembly Processing Examples] ■ Automotive parts ■ Parts for nursing care robots ■ Construction waterproofing materials ■ Printing machine parts ■ Hairpins for wigs ■ Electronic device parts *For detailed examples and technology, please contact us or download the PDF to view.

• Processing Contract

Fusion of humans and machines in assembly processing! We prioritize solving our customers' needs.

Would you like to outsource your assembly process? We can solve your concerns such as "I want support from prototyping to mass production" and "We can't handle it in-house." With semi-automated work using our self-developed assembly equipment, we achieve high productivity and stable quality, leading to cost reduction. Our company delivers products tailored to your needs with "high technology" and "reliable quality" based on over 60 years of experience and achievements. 【Examples of Assembly Processing】 ■ Functional parts for automobiles ■ Parts for welfare equipment ■ Construction waterproofing materials ■ Parts for printing peripherals ■ Parts for electronic devices ■ Parts for transportation and vehicle equipment *For more details, please refer to the PDF document or feel free to contact us.

• Contract manufacturing

Riveting processing that achieves cost reduction in joining engineering and high rigidity.

"Rivet processing" has no distortion or discoloration compared to welding, can be finished beautifully, and can be processed in a shorter time than welding. Additionally, it is possible to join metals that are not suitable for welding and to bond dissimilar materials, including metals and resins. Our widely used "spin riveting" with rivets has high rigidity and can also be used for movable parts, making it suitable for many functional component joints. 【Advantages of Rivet Processing】 ● High precision at low cost ● Strong joints with high rigidity ● Ideal for joining movable parts ● Capable of joining dissimilar materials For more details, please download the catalog or contact us.

• Contract manufacturing

From prototyping to mass production, we can handle it all! Easily outsource high-quality assembly work at low prices.

Our company mainly focuses on the assembly of machinery and electrical components. The assembly is handled by skilled staff who have cleared our unique training program. The products we assemble achieve top-class quality and low prices in the industry through mechanical assembly, represented by riveting processes, and high-level handwork that machines cannot replicate. 【Features】 ● In-house support for process design, jigs, and assembly/testing equipment planning and development ● Comprehensive traceability management through our self-developed inventory/production management system ● Ability to arrange a wide range of component parts through a self-sourcing network ● Promotion of company improvement projects incorporating ISO standards For more details, please download the catalog or contact us.

• Contract manufacturing

Spin riveting, which ensures cost reduction in joining engineering and high rigidity, can also be used in movable parts.

"Spin riveting" is a processing method that joins materials by deforming rivets through pressure while rotating. By applying pressure while rotating, it is possible to evenly distribute force on the rivet, allowing for processing with less force than conventional press riveting that only uses pressure. In particular, the "spin riveting" using rivets, as shown in this video, is adopted for many functional parts because it has high rigidity while also being usable in movable components. There are various shapes for the finished rivet joint, which can be selected based on the choice of insert. The "Yamagata" shape introduced in the video is a standard shape among "spin riveting." **Advantages of Riveting Processing** - High precision at low cost - Strong rigidity in joints - Ideal for joining movable parts - Capable of joining dissimilar materials For more details, please download the catalog or contact us.

• Contract manufacturing

It can join multiple parts and can also be used for movable components.

"Spin fastening" is a processing method that joins materials by applying pressure and deforming rivets using a rotating insert. By applying pressure while rotating, it is possible to evenly press the rivets, allowing for joining with less force than conventional press fastening, which relies solely on pressure. Particularly, the "spin fastening" using rivets, as demonstrated in this video, is adopted for many functional parts because it can be used in movable components while maintaining high rigidity. There are various shapes for the finished appearance of the fastening area, which can be selected based on the choice of insert. The "bowl-shaped" form introduced in the video is rounded without corners compared to the "serrated" shape. It is a fastening shape processed using custom inserts tailored to the size of the fastening area. **Advantages of fastening processing:** - High precision at low cost - Strong rigidity in joints - Ideal for joining movable parts - Capable of joining dissimilar materials For more details, please download the catalog or contact us.

• Contract manufacturing

If you provide us with the product drawings, we will handle the arrangement of parts, the manufacturing of tools and equipment, and inspections at our company.

This is the company introduction of Izawa Manufacturing Co., Ltd., which has been involved in the assembly of functional parts since its establishment. We have a proven track record of working with various automobile manufacturers, as well as in industrial equipment and office equipment. We produce over 5,000,000 products annually while maintaining a high quality with a defect rate of less than 1 ppm (1/1,000,000). Leveraging over 60 years of experience and achievements, we propose optimal assembly solutions for our customers. Please feel free to contact us. [Contents] ● Flow of assembly process outsourcing ● Main products ● Assembly technology ● Network system ● Company overview, company history, facilities, access For more details, please download the catalog or contact us.

• Assembly Machine

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)

We are pleased to announce that we have been featured in the "Yokohama Manufacturing Company Guide 2026-2027." This guide serves as a booklet introducing outstanding manufacturing companies in Yokohama, and it is utilized by many business professionals and job seekers. Information about IIDA's technical capabilities in resin processing, as well as our products and services, is included, so please take a look through the related links. [Limited Company Iida Seisakusho] 21-2 Mizukami, Nukazawa, Motomiya City, Fukushima Prefecture, 969-1204 TEL: 0243-64-2320 FAX: 0243-64-2571

● This is a leak testing device for small electronic components that does not use fluorinated inert liquids (PFAS-free). ● There is no longer a need for unstable visual confirmation through liquid immersion testing. It adopts a quantitative testing method that allows for stable pressure leak testing. ● It is a tabletop leak testing device specifically for gross leaks, with accuracy equal to or greater than that of liquid immersion testing. ● The detectable range is approximately 1×10⁻² Pa·m³/s to 1×10⁻⁶ Pa·m³/s (varies depending on the target product). ● It is suitable for sealed structures ranging from a few millimeters to a maximum of 80 × 70 mm. Please feel free to contact us for more information!

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed without causing any thermal impact on the base material. Repairs can be made even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

Fukuda Co., Ltd., which develops, manufactures, and sells leak testing equipment to inspect airtightness and sealing performance, provides a technical document that clearly explains the methods and theories of airtight testing, titled "Technical Manual." We are offering it as a PDF file. Please take this opportunity to download and view it!