Hirobumi Ouchi

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Photocoupler and method for producing the same
- Patent number 6,021,239
- Issue date Feb 1, 2000
- Sharp Kabushiki Kaisha
- Kohji Minami
- G02 - OPTICS
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Magneto-optical head employing optical fiber connected stationary a...
- Patent number 5,245,491
- Issue date Sep 14, 1993
- Hitachi Cable Limited
- Makoto Horie
- G11 - INFORMATION STORAGE
Information Patent Grant
Optoelectronic device
- Patent number 4,816,890
- Issue date Mar 28, 1989
- Hitachi, Ltd.
- Hirobumi Ouchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photo semiconductor device
- Patent number 4,740,819
- Issue date Apr 26, 1988
- Hitachi, Ltd.
- Hirobumi Ouchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser device
- Patent number 4,563,764
- Issue date Jan 7, 1986
- Hitachi, Ltd.
- Takao Kuroda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical semiconductor device
- Patent number 4,367,483
- Issue date Jan 4, 1983
- Hitachi, Ltd.
- Takeo Takahashi
- G02 - OPTICS
Information Patent Grant
Light detecting photodiode-MIS transistor device
- Patent number 4,346,395
- Issue date Aug 24, 1982
- Hitachi, Ltd.
- Hirobumi Ouchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Low dark current photo-semiconductor device
- Patent number 4,242,695
- Issue date Dec 30, 1980
- Hitachi, Ltd.
- Hirobumi Ouchi
- H01 - BASIC ELECTRIC ELEMENTS