Seiji Sakaguchi

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Shinjuku-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing a glass substrate for a magnetic disc
- Patent number 8,317,572
- Issue date Nov 27, 2012
- Hoya Corporation
- Masaaki Ueda
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR MANUFACTURING A GLASS SUBSTRATE FOR A MAGNETIC DISC
- Publication number 20100285726
- Publication date Nov 11, 2010
- HOYA CORPORATION
- Masaaki Ueda
- B24 - GRINDING POLISHING