Koichi Hagiwara

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Ishikawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cleaning and releasing device
- Patent number 7,648,081
- Issue date Jan 19, 2010
- Shibuya Kogyo Co., Ltd.
- Koichi Hagiwara
- B24 - GRINDING POLISHING
Information Patent Grant
Method for cleansing/scraping and apparatus therefor
- Patent number 6,386,949
- Issue date May 14, 2002
- Shibuya Kogyo Co., Ltd.
- Koichi Hagiwara
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
Cleaning and releasing device
- Publication number 20020088872
- Publication date Jul 11, 2002
- SHIBUYA KOGYO CO., LTD
- Koichi Hagiwara
- B24 - GRINDING POLISHING