From general-purpose plastics to high-functional engineering plastics, we can handle all kinds of processing, ranging from single products and small quantities to mass production, as well as machining, assembly, welding, and bending.
Integrated production of die-stamping materials such as rubber, sponge, PET film, and more, from single or small quantities to mass production, machine parts, precision parts, covers, gaskets, etc., as well as various plastic processing and die-stamping for a wide variety of materials.
We utilize our location in Ota-ku, one of Japan's leading industrial areas, to respond to the diverse needs of our customers by taking advantage of our network of affiliated companies for processing services that we do not offer, such as resin molding, rubber molding, metal processing, painting, and silk printing.

★ Plastic Binder: These are our own main products since we established the company. Based on this experience, we endeaver to continuously improve our innovative range of binder mechanisms and stationery mechanisms.

・Injection molding of plastics (thermoplastic resin)
・Assembly such as press-fitting, welding, adhesion, and unit assembly
・Mold manufacturing
・Precision measurement

We are capable of integrated in-house production (prototyping-mold making-mass production- delivery).
Our specialty is the mass-production of super engineering plastics, and accuracy control in mass production can be controlled to ±0.05 or less
Our production capacity is 24 hours a day, 7 days a week, from small lots (less than 100 units per lot) to several hundred thousand units per month.

We were established in 1962 as a gauge manufacturer. Since that time, we have devoted ourselves to precision machining under our motto:"More Precise Machining in Shorter Turnaround Times." Based on these technologies, we are currently engaged in everything from materials to the machining of ball screws, as well as their sales.

SEP INC. continues to strive for the development of epoch-making products by applying cutting-edge interface and colloid science to the mechanical engineering field. "SEP" stands for Surface Engineering for Plastic.

Kishimoto Industry’s Full Flat Machining technology, which allows us to stably process plastic sheet thicknesses to within ±30μ, enables us to machine plastic to the same level of dimensional accuracy as metal.

Takanawa is currently manufacturing medical equipment and semiconductor-related parts by utilizing our small parts manufacturing and processing technology developed through our camera technology. We have confidence in our products with feature specifications such as micro, ultra-thin, and thin-walled. We are a creative company that pursues possibilities by making full use of all kinds of technologies.

-Ultrafine and ultra-small diameter hole drilling services-
We pursue the limits and possibilities by taking on the challenge of machining with a high degree of difficulty.
We are a small group of elite engineers who are always striving to improve our technology and truly enjoy the excitement of manufacturing together.

ClimbWorks provides comprehensive manufacturing support for new product development, with a focus on mass production. We are involved in new products and the advanced development of major manufacturers in a variety of fields through the provision of parts, including next-generation automobiles (EV, FCV), industrial equipment, electronic devices, medical devices, and semiconductor manufacturing equipment. We also provide stable quality products by proposing optimum manufacturing methods from prototype production to mass production start-up, and by conducting product maturation activities with mass production quality in mind. We provide solutions to our customers' problems with our integrated production system, quality control, industry-leading short delivery times, and advanced technical capabilities. Our plants are designed to take advantage of each location, with the Tokyo headquarters plant focusing on prototype development based on the competitiveness of its design and technology, and the Nagasaki plant, which began full-scale operations in January 2021, focusing on mass production development with its cost competitiveness as its strength. This system enables us to contribute to the cutting edge of manufacturing in all regions of Japan.

We are a manufacturer specializing in test jigs for semiconductor inspection and evaluation tests.
We offer IC sockets, connectors, test heads, and other test jigs for device evaluation.
We are able to provide high-quality products with short delivery times at competitive prices by implementing our own integrated product design, processing, and assembly in-house.
Kasasaku Electronics introduction video (click to play)
https://www.kasasaku.co.jp/kasasaku_profile.mp4

There are many steps involved in turning an idea into reality, from the production of the product to its completion. We provide one-stop services from the design stage to the production, inspection, and final assembly of the parts providing solutions to your problems such as which materials and plating are suitable, where to order prototypes, how to guarantee the accuracy of the parts, and who is in charge of the assembly.
We handle a wide variety of materials such as metal, resin, glass, and more, and we specialize in high-mix, low-volume parts production.
We have also added a 3D printer, so if you provide us with your data, we can use it to manufacture your parts.

KSG Co., Ltd. is a Tokyo-based manufacturing company found in 2008.
We have own proprietary management system and hence can provide finished parts accuracy assurance up to 1.3 μm. When it comes to aluminum and plastic processed parts, we deliver more clear products than competitors.
Our goal is to become a company where all customers can do business carefree.

Outline of business
Design, development, manufacturing, and construction (installation) of park facilities, urban environment facilities, steel structures, road and river information panels, lighting towers for various arenas and lighting poles, lighting facilities, small natural energy generation facilities (solar cells, etc.), and aftermarket services
Development, manufacturing, and sale of high-performance rust-preventive coatings
Our Specialty Technologies
We can design, manufacture, install, and perform after-sales maintenance for products such as park facilities, urban environmental facilities, steel structures, lighting towers, lighting poles, and small natural energy power generation facilities (solar cells, etc.) in an integrated manner in-house. We have developed a special rust-preventive technology using conductive polymers to prevent rusting of metals.
Sales Points
We are looking for partners to work with us on our special rust-prevention technology using conductive polymers. Please contact us if you are looking to take on rust issues.
We also have the most extensive experience in animal housing production in Japan.