Tomohisa Akiyoshi

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Shimonoseki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for mirror process of external surface of long sized metal
- Patent number 6,322,426
- Issue date Nov 27, 2001
- Nissin Unyu Kogyo Co., Ltd.
- Kazuo Akagi
- B24 - GRINDING POLISHING