Shizuo Nagata

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Tokyo, JP

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Patents Grantslast 30 patents

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Tracking adjustment using the sum of the maximum and minimum tracki...
- Patent number 5,481,526
- Issue date Jan 2, 1996
- Oki Electric Industrial Co., Ltd.
- Shizuo Nagata
- G11 - INFORMATION STORAGE
Information Patent Grant
Adjustment of tracking servo and focusing servo in optical data rec...
- Patent number 5,351,224
- Issue date Sep 27, 1994
- Oki Electric Industry Co., Ltd.
- Shizuo Nagata
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc system
- Patent number 5,231,618
- Issue date Jul 27, 1993
- Oki Electric Industry Co., Ltd.
- Tsutomu Tabata
- G11 - INFORMATION STORAGE
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Rotatable read/write optical head apparatus
- Patent number 5,195,074
- Issue date Mar 16, 1993
- Oki Electric Industry Co., Ltd.
- Katsushide Tanoshima
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head
- Patent number 5,097,456
- Issue date Mar 17, 1992
- Oki Electric Industry Co., Ltd.
- Katsuhide Tanoshima
- G11 - INFORMATION STORAGE
Information Patent Grant
External magnetic field generating device
- Patent number 4,813,007
- Issue date Mar 14, 1989
- Oki Electric Industry Co., Ltd.
- Katsuhide Tanoshima
- G11 - INFORMATION STORAGE