Takaya Yamamoto

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor photo device
- Patent number 4,729,004
- Issue date Mar 1, 1988
- Kokusai Denshin Denwa Kabushiki Kaisha
- Kazuo Sakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light amplifier
- Patent number 4,484,144
- Issue date Nov 20, 1984
- Kokusai Denshin Denwq Kabushiki Kaisha
- Yukio Nakagome
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Avalanche photo diode
- Patent number 4,383,266
- Issue date May 10, 1983
- Kokusai Denshin Denwa Kabushiki Kaisha
- Kazuo Sakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser with buffer layer
- Patent number 4,340,966
- Issue date Jul 20, 1982
- Kokusai Denshin Denwa Kabushiki Kaisha
- Shigeyuki Akiba
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Avalanche photodiode with semiconductor hetero structure
- Patent number 4,274,103
- Issue date Jun 16, 1981
- Kokusai Denshin Denwa Kabushiki Kaisha
- Takaya Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for producing compound semiconductor crystals
- Patent number 4,179,317
- Issue date Dec 18, 1979
- Kokusai Denshin Denwa Kabushiki Kaisha
- Kazuo Sakai
- C30 - CRYSTAL GROWTH