Syoji Matsuda

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Glass substrate for magnetic recording medium, magnetic recording m...
- Patent number 6,548,139
- Issue date Apr 15, 2003
- Hoya Corporation
- Hiroyuki Sakai
- G11 - INFORMATION STORAGE
Information Patent Grant
Glass substrate for magnetic recording medium, magnetic recording m...
- Patent number 6,383,404
- Issue date May 7, 2002
- Hoya Corporation
- Hiroyuki Sakai
- B82 - NANO-TECHNOLOGY

Patents Applicationslast 30 patents

Information Patent Application
Glass substrate for magnetic recording medium, magnetic recording m...
- Publication number 20020142191
- Publication date Oct 3, 2002
- Hoya Corporation
- Hiroyuki Sakai
- B82 - NANO-TECHNOLOGY