Yoshihiro Shimizu

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Miyagi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing magnetic recording medium
- Patent number 5,945,156
- Issue date Aug 31, 1999
- Sony Corporation
- Yoshihiro Shimizu
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for molding plastic material into disk shaped sabstrate for...
- Patent number 4,879,082
- Issue date Nov 7, 1989
- Sony Corporation
- Junichiro Kudo
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL