Shinji Ohyama

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical recording sheet and method and apparatus for reproducing th...
- Patent number 5,101,096
- Issue date Mar 31, 1992
- Hitachi, Ltd.
- Shinji Ohyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical element, optical disc and rotary encoder with the optical e...
- Patent number 4,978,187
- Issue date Dec 18, 1990
- Hitachi, Ltd.
- Hiroyuki Minemura
- G11 - INFORMATION STORAGE
Information Patent Grant
Liquid crystal display combined with signal input tablet
- Patent number 4,945,348
- Issue date Jul 31, 1990
- Hitachi Ltd.
- Masahiko Ibamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Intergrated optical head with flexible substrate portion
- Patent number 4,937,808
- Issue date Jun 26, 1990
- Hitachi, Ltd.
- Satoshi Shimada
- G02 - OPTICS