Notice of Participation in the Crime Prevention and Disaster Prevention Comprehensive Exhibition 2019 on June 6 (Thursday) and June 7 (Friday), 2019.

Are you prepared for rising water levels due to typhoons and sudden heavy rain? Prevent rainwater and drainage backflow! Easy guerrilla rainstorm measures with just installation!

Kansai Chemical's "Backflow Prevention Valve" is a retrofitted installation that simply plugs into the discharge section of a water tank, preventing backflow of rainwater and drainage during sudden heavy rain. It can be used in septic tanks, drainage pits, etc. 【Features】 ◆ Can be installed retroactively ◆ Made of corrosion-resistant resin for long-lasting use ◆ Compatible with VP and VU pipes ◆ Insertion direction can be selected from forward or reverse ◆ As a molded product, it can be offered at a low cost ◆ Reduces backflow of water and sediment into the septic tank during heavy rain ◆ Mitigates odor backflow into toilets and sinks during sudden heavy rain Standard sizes are available from 100A to 200A. Custom sizes can also be accommodated, so please consult with us. *For more details, please download the PDF or feel free to contact us.

• Water treatment equipment
• Wastewater/wastewater treatment equipment
• Other water treatment equipment

We would like to extend our heartfelt congratulations on the continued prosperity of your esteemed company. Our company will be exhibiting at the following trade show, where we will introduce a number of products, including our new product, the Pillow Packaging Full Air Tightness Inspection Machine MSQ-2003. We sincerely apologize for the inconvenience during your busy schedule, but we would like to invite you to visit us at this opportunity. 【 Exhibition Name 】 JAPAN PACK 2025 Japan Packaging Industry Exhibition https://www.japanpack.jp/ 【 Dates 】 October 7 (Tuesday) to October 10 (Friday), 2025 *4 days 10:00 AM to 5:00 PM 【 Venue / Booth Number 】 Tokyo Big Sight / East Hall 8, Booth 8-505

This is the announcement for the second part of the Op-Amp Classroom Series, "Op-Amp Classroom - DC Characteristics and AC Characteristics." We will explain the DC and AC electrical characteristics as the basics of op-amps. Since we will start with an introduction to fundamental functions, those who have not participated in Op-Amp Classroom 1 are also welcome to join. The difficulty level is beginner to intermediate, so whether you are new to analog ICs or have specific issues, we encourage you to participate! ● Target Audience - Engineers who are new to analog circuit design - Board evaluators and test engineers - Those who are newly responsible for component purchasing ● Agenda 1. Electrical Characteristics of Op-Amps (DC Characteristics) - Input offset voltage / Input bias current - Common-mode input voltage range and input stage configuration - Output inversion of dual-supply op-amps - What are sink/source currents? - Crossover distortion 2. Electrical Characteristics of Op-Amps (AC Characteristics) - What is slew rate? - What is gain-bandwidth product (GBW)? 3. Oscillation of Op-Amps We look forward to your participation!

On this occasion, we have opened a showroom for Tajima embroidery machines in conjunction with the renovation of the Chūnichi Jūki headquarters building. To commemorate the opening of the showroom, we will hold an exhibition of Tajima embroidery machines.

Next-generation large resin and metal 3D printers that achieve astonishing high-speed molding, low-cost, and high-precision molding are being rapidly introduced to the market. These printers are being utilized in the manufacturing of large parts and products in the aerospace, automotive, industrial machinery, plant, defense, and social infrastructure sectors, as well as in parts and mold repairs and reverse engineering. In this seminar, we will discuss the latest developments and features of cutting-edge machines from Stratasys, the largest manufacturer of large resin 3D printers, and Lobotics, along with domestic and international case studies. We will also explore innovative molding technologies from leading users such as Fujikohsai Industries and Sanko Gosei, who utilize large metal 3D printers from Meltio and Matsuura Machinery to create large metal parts, large metal products, and large mold components. The seminar will provide concrete and easy-to-understand explanations of key points and considerations for implementation and utilization, various manufacturing examples, and discussions on molding size, quality, cost, lead time, and success and failure stories. 3D printers enable the complex integrated molding of multiple parts into a single large shape, which was impossible with previous processing methods and technologies. This capability allows for a significant reduction in the number of parts, achieving short lead times, low costs, high-quality manufacturing, and a reduction in the number of processes and personnel involved.

Copper, which has a high laser reflectivity and quickly dissipates the thermal energy from laser irradiation, was difficult to shape using metal 3D printers. However, recently developed high-performance and high-functionality metal 3D printers, along with pure copper and copper alloy powders that have a high laser absorption rate and excellent 3D moldability, have been introduced to the market, and practical applications are rapidly advancing in leading companies. Metal 3D printers enable the creation of complex shapes and integrated structures, lattice/porous structures, and hybrid structures that were previously impossible, allowing for the innovation of parts, rapid development and prototyping of components, significant reduction in the number of parts, improved quality, lightweight and compact designs, and cost reduction. This has led to increased adoption and utilization in applications such as heating coils, heat sinks, heat exchangers, motor coils, and electronic and electrical devices. In this seminar, we will provide a clear and detailed explanation of the latest trends in pure copper and copper alloy powders suitable for 3D additive manufacturing, developed by Fukuda Metal Foil Powder Industry, as well as case studies of layered molding with pure copper and copper alloys. We will also discuss innovative molding technologies and examples that are unique to our company, as demonstrated by leading users such as TK Engineering, ODEC, and Fasotec, who are utilizing metal 3D printers to manufacture low-cost, high-quality copper components in a short time, sharing both success and failure stories.