Hirokatu Obayashi

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Aichi-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Lens periphery processing apparatus, method for obtaining processin...
- Patent number RE35898
- Issue date Sep 15, 1998
- Nidek Co., Ltd.
- Ryoji Shibata
- 451 - Abrading
Information Patent Grant
Lens periphery processing apparatus, method for obtaining processin...
- Patent number 5,347,762
- Issue date Sep 20, 1994
- Nidek Co., Ltd.
- Ryoji Shibata
- B24 - GRINDING POLISHING