Yasuharu Suematsu

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing a distributed brass reflector type semicond...
- Patent number 5,045,499
- Issue date Sep 3, 1991
- Research Development Corporation of Japan
- Hideaki Nishizawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Distributed bragg reflector type semiconductor laser
- Patent number 4,914,670
- Issue date Apr 3, 1990
- Nishizawa; Hideaki
- Hideaki Nishizawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser
- Patent number 4,410,994
- Issue date Oct 18, 1983
- Kokusai Denshin Denwa Kabushiki Kaisha
- Chuichi Ota
- 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