Mitsuru Shimizu

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Toriae-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical data recording system and method of production of recording...
- Patent number RE37719
- Issue date May 28, 2002
- Toshinori Sugiyama
- 428 - Stock material or miscellaneous articles
Information Patent Grant
Method for producing an optical recording medium
- Patent number 5,073,243
- Issue date Dec 17, 1991
- Hitachi Maxwell, Ltd.
- Akira Gotoh
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium and production method thereof
- Patent number 4,908,250
- Issue date Mar 13, 1990
- Hitachi Maxell, Ltd.
- Akira Gotoh
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical data recording system and method of production of recording...
- Patent number 4,876,133
- Issue date Oct 24, 1989
- Hitachi Maxell, Ltd.
- Toshinori Sugiyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Ventilation arrangement for use in an optical recording disc
- Patent number 4,720,826
- Issue date Jan 19, 1988
- Hitachi Maxell, Ltd.
- Toshinori Sugiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording disc
- Patent number 4,710,913
- Issue date Dec 1, 1987
- Hitachi Maxell, Ltd.
- Seiichi Matsushima
- G11 - INFORMATION STORAGE