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Latest update: 27/04/2017 14:11:37

Hirosawa Plastic Industry Co., Ltd.

Our company manufactures injection molding parts using both thermoplastic and thermosetting resins. 

We are an injection molding manufacturer that handles both thermoplastic resin injection molding (for medical equipment parts) and thermosetting resin direct pressure molding (insulators for heavy machinery). Manufacturing thermosetting resin products allows us to expand our field of business in plastic industries where most products are made of thermoplastic resin. Our urban factory in Arakawa Ward, Tokyo provides high-mix low-volume production as well as consulting from the planning phase including shape and resin selection. Most user companies are in the electrical, machinery, and medical fields.


Other presentation

[Company strength]
Our company offers comprehensive solutions in both thermoplastic resin and thermosetting resin production. Our thermosetting resin manufacturing capabilities allow us to satisfy a wide range of needs in the plastic product industry where most products are made of thermoplastic resin. This has helped us to expand our field of business as a result. Our urban factory has introduced effective but environmentally friendly manufacturing equipment. We have created a flexible production system that can manage all processes from orders to shipment, while ensuring high-quality plastic products with our technology. Our products meet strict quality requirements, and can be manufactured in high-mix low-volume production. Consulting from the shape and resin selection phase is also one of our strengths. Our services are favorably received among users in the electrical, machinery, and medical fields. We try to encourage our employees to willingly take on challenges even when the task is too difficult for some other companies. 

[Business description]
We are engaged in thermoplastic resin product manufacturing through injection molding (mostly medical equipment parts) and thermosetting resin product manufacturing through direct pressure molding (mainly insulators for heavy electric machinery). We also design and manufacture molding dies. 

Plastic product manufacturing

[Strength of products/technologies]
We deal with various engineering plastics and general-purpose plastics. We are highly experienced in polysulfone, PPS, PEEK, and a number of other super engineering plastics that feature high heatproof temperatures and physical properties. We are also experienced in other precision plastic products including engineering plastics such as ABS resin, and polycarbonate. We have made many polysulfone products, and our high-temperature insert molding with brass, aluminum, and stainless steel material is highly valued. We excel at making small parts up to about 100 g. We have made many articles in the field of skill-intensive thermosetting resin, such as thick high-insulation transformer parts, insulators (for heavy machinery), and medical equipment parts. 

[Representative's message]
Our company is dedicated to making good functional parts. We know that our customers will not be satisfied until the parts we have made exceed their expectations. Our strength lies in something other than low prices. Our moldings are entirely made in Japan, so our business is not affected by political uncertainty or language issues in foreign countries. We will continue to serve as many customers as possible as a factory in their neighborhood. 

[Company structure for market development/overseas expansion]
We have frameworks in place for market cultivation. We participate in business matching events to meet potential customers, as well as in organizations where business successors meet, exchange views, and learn together to nurture their determination and talents. Information sharing is also good for acquiring customers. We hope to improve our efficiency so that our company can be managed with a small number of people. We will accomplish this by making use of management support from Arakawa Ward, and cultivating various markets.

[Market share/Ranking]
Specific figures about our market share are unavailable, but our company is reputed to be Tokyo’s top manufacturer among super engineering plastic material manufacturers. We have strong relationships of trust with device equipment manufacturers regarding super engineering plastic molding. 

[Awards and media coverage]


[Main Clients / Business History (domestic)]
Hitachi; Hitachi Medico; Hitachi Koki; Konica Minolta; Fuji Film; Nihon Kohden.

This company is recommended by the following support organizations.

Kanto Head Office, SMRJ

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