Ryouhei Hasegawa

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Joetsu-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Manufacture of synthetic quartz glass substrate
- Patent number 9,616,542
- Issue date Apr 11, 2017
- Shin-Etsu Chemical Co., Ltd.
- Ryouhei Hasegawa
- B24 - GRINDING POLISHING
Information Patent Grant
Treatment of synthetic quartz glass substrate
- Patent number 8,951,386
- Issue date Feb 10, 2015
- Shin-Etsu Chemical Co., Ltd.
- Harunobu Matsui
- B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents

Information Patent Application
MANUFACTURE OF SYNTHETIC QUARTZ GLASS SUBSTRATE
- Publication number 20130203324
- Publication date Aug 8, 2013
- Shin-Etsu Chemical Co., Ltd.
- Ryouhei HASEGAWA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
TREATMENT OF SYNTHETIC QUARTZ GLASS SUBSTRATE
- Publication number 20110308737
- Publication date Dec 22, 2011
- Harunobu MATSUI
- B32 - LAYERED PRODUCTS