Yasutoshi Kashiwada

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Hinodemachi, JP

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Patents Grantslast 30 patents

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Semiconductor laser
- Patent number 5,136,601
- Issue date Aug 4, 1992
- Hitachi, Ltd.
- Takashi Kajimura
- H01 - BASIC ELECTRIC ELEMENTS
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Distributed-feedback semiconductor laser device
- Patent number 4,775,980
- Issue date Oct 4, 1988
- Hitachi, Ltd.
- Naoki Chinone
- H01 - BASIC ELECTRIC ELEMENTS
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Distributed-feedback semiconductor laser device
- Patent number 4,665,528
- Issue date May 12, 1987
- Hitachi, Ltd.
- Naoki Chinone
- H01 - BASIC ELECTRIC ELEMENTS
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Buried heterojunction laser
- Patent number 4,630,279
- Issue date Dec 16, 1986
- Hitachi, Ltd.
- Takashi Kajimura
- H01 - BASIC ELECTRIC ELEMENTS
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Semiconductor laser device
- Patent number 4,563,764
- Issue date Jan 7, 1986
- Hitachi, Ltd.
- Takao Kuroda
- H01 - BASIC ELECTRIC ELEMENTS
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Semiconductor laser device
- Patent number 4,506,366
- Issue date Mar 19, 1985
- Hitachi, Ltd.
- Naoki Chinone
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser device
- Patent number 4,432,091
- Issue date Feb 14, 1984
- Hitachi, Ltd.
- Takao Kuroda
- H01 - BASIC ELECTRIC ELEMENTS