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Latest update: 30/05/2017 17:54:28

Komazawa Kasei Co., Ltd.

Our company has a track record of manufacturing precision engineering plastic moldings, and other parts that use high-performance materials. 

Our company offers engineering plastic moldings, housing equipment parts, and die design services for electric and electronic parts. Our past projects include developing a hollow float as a drain float for diesel vehicle fuel tanks, and elastomer (rubber) double moldings for automobile door locks. 


Other presentation

[Company strength]
Are you are considering engineering plastics (PPS, POM, PA, PBT) and other high-performance materials as a base for your parts? Our company has an extensive track record in selecting the right manufacturer and grade for the material. We can also work to develop a new grade based on your specifications. 

Plastic injection molding and die manufacturing

[Strength of products/technologies]
Drain floats in diesel vehicle fuel tanks used to be made of expanded polystyrene, which often caused malfunctions because of its unstable bubble arrangement. Our company suggested developing a hollow float as a solution, and the resulting product has been adopted in these tanks. We also suggested double elastomer (rubber) moldings to replace metal automobile door lock parts. These moldings were later adopted, which eliminated the need for grease for the parts. 

[Representative's message]
Our company has been in engineering plastics (mostly molding) and the clear, thick die design businesses as a technology company since our establishment in 1976. I believe that we should pursue something other people would rather avoid, based on always thinking within common sense, while knowing when to step out of it. We will continue along our path based on this belief. 

[Company structure for market development/overseas expansion]
Our Shanghai plant mostly includes automated lines to reduce dependency on labor, and the workers are in charge of quality control. This is because we believe that products are degraded every time they pass through human hands. Technologies are transferred to the local staff from an employee from the head office so that operations are handled by the local staff as much as possible. New projects are managed by the head office, and this arrangement has pleased our customers, including those in Shanghai.

[Market share/Ranking]
Our door latch parts for door locks have a 20% share of the domestic Japanese market, and a 2% share of the global market.

[Awards and media coverage]
Sagami City trial certification (A-lamor energy saving device).

A-lamor: Japan Broadcasting (April 2012); Tokyo Broadcasting System Television (documentary program, September); Tokyo Shimbun (April); Asahi Shimbun (June). 

JQA-QMA12170; ISO 9001:20001; JIS Q 9001:2000.

[Joint research and development]
Our company is a member of an industry association new product study group. This is held jointly with Sagamihara City, Machida City, and Hachioji City (with the cooperation of Tamagawa University). We also participate in pan-industry social events held by the Sagamihara Incubation Center. 

[Main Clients / Business History (domestic)]
Mitsui Kinzoku ACT; Rikenkaki Kogyo; Nihon Inter; CKD; Fujikura Rubber; Tateyama Kagaku Industry; and many others.

[Main Clients / Business History (overseas)]
Our Shanghai plant has been doing business with local subsidiaries of Japanese companies since 2013.

This company is recommended by the following support organizations.

Kanto Head Office, SMRJ