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Latest update: 01/11/2021 13:01:56


We are a manufacturer specializing in plastic media (polishing materials)

We manufacture plastic media polishing stones for barrel finishing.

We possess manufacturing technology especially for small sizes (less than 3mm), and there is demand mainly in the electronics and car industries as parts become lighter and smaller.

In the future, we will boldly take on the challenge of growth industries and also new areas (material design and art) without forgetting our venturesome spirit.

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Sales Pitch

Business contents
Top company in a niche market (70% share in Japan)
As a manufacturer specializing in plastic media for barrel finishing, we handle more than 350 types of products, accounting for a 70% share of the domestic Japanese market.
Unique Monozukuri craftsmanship
We work hard every day to meet our customers' requirements in plastic media manufacturing, and our customers have been supporting us for many years.

We manufacture all kinds of plastic media, and our ability for stable production especially of small sizes is one of our strengths.
Trust and performance
Enhanced equipment
We installed production equipment in December 2016, and built a new research building in April 2017.

Government certification (Monozukuri selection)
We have been awarded Monozukuri grants from the Ministry of Economy, Trade and Industry for four consecutive years.

Trust and performance for 45 years
Since our foundation in 1972, we have been doing business long-term with our customers by responding to orders for high-mix low-volume production and short lead times.

This company is recommended by the following support organizations.

Marketing Support Department, SMRJ