Masahiro Yamaguchi

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Tokai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor laser device
- Patent number 4,951,290
- Issue date Aug 21, 1990
- Sharp Kabushiki Kaisha
- Taiji Morimoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser device which is stable for a long period of time
- Patent number 4,926,431
- Issue date May 15, 1990
- Sharp Kabushiki Kaisha
- Hidenori Kawanishi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Integrated semiconductor laser device
- Patent number 4,891,816
- Issue date Jan 2, 1990
- Sharp Kabushiki Kaisha
- Toshihiko Yoshida
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor laser device having extended facet life
- Patent number 4,879,725
- Issue date Nov 7, 1989
- Sharp Kabushiki Kaisha
- Hidenori Kawanishi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Index guided semiconductor laser device
- Patent number 4,853,936
- Issue date Aug 1, 1989
- 501 Sharp Kabushiki Kaisha
- Sadayoshi Matsui
- H01 - BASIC ELECTRIC ELEMENTS