Tsuyoshi Watanabe

Follow

Person

Kitakoma-gun, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing a glass substrate and a magnetic recording...
- Patent number 6,877,343
- Issue date Apr 12, 2005
- Hoya Corporation
- Tsuyoshi Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium using a glass substrate
- Patent number 6,503,600
- Issue date Jan 7, 2003
- Tsuyoshi Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Glass substrate for information recording medium
- Patent number 6,277,465
- Issue date Aug 21, 2001
- Hoya Corporation
- Tsuyoshi Watanabe
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
Glass substrate for information recording medium, method of manufac...
- Publication number 20030113512
- Publication date Jun 19, 2003
- Hoya Corporation
- Tsuyoshi Watanabe
- G11 - INFORMATION STORAGE
Information Patent Application
Glass substrate for information recording medium, method of manufac...
- Publication number 20010041271
- Publication date Nov 15, 2001
- Hoya Corporation
- Tsuyoshi Watanabe
- C03 - GLASS MINERAL OR SLAG WOOL