Yoshitane Tuburaya

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Toriae-shi Ibaraki-ken, 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
Optical data recording medium and manufacturing method thereof
- Patent number 5,021,276
- Issue date Jun 4, 1991
- Hitachi Maxell, Ltd.
- Hisamitsu Kamezaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording medium and its production
- Patent number 5,013,594
- Issue date May 7, 1991
- Hitachi Maxwell, Ltd.
- Tetsuo Mizumura
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical data recording medium
- Patent number 4,985,289
- Issue date Jan 15, 1991
- Hitachi Maxell, Ltd.
- Hisamitsu Kamezaki
- B32 - LAYERED PRODUCTS
Information Patent Grant
Optical disc
- Patent number 4,911,968
- Issue date Mar 27, 1990
- Hitachi Maxell, Ltd.
- Tosio Higasihara
- 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