Toshiyuki Ohishi

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Hyogo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process of producing diffraction grating
- Patent number 5,540,345
- Issue date Jul 30, 1996
- Mitsubishi Denki Kabushiki Kaisha
- Hiroshi Sugimoto
- G02 - OPTICS
Information Patent Grant
Process of producing diffraction grating
- Patent number 5,300,190
- Issue date Apr 5, 1994
- Mitsubishi Denki Kabushiki Kaisha
- Hiroshi Sugimoto
- G02 - OPTICS
Information Patent Grant
Heterojunction avalanche transistor
- Patent number 5,036,372
- Issue date Jul 30, 1991
- Mitsubishi Denki Kabushiki Kaisha
- Toshiyuki Ohishi
- H01 - BASIC ELECTRIC ELEMENTS