Tsuyoshi Tojyo

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor laser
- Patent number 5,953,357
- Issue date Sep 14, 1999
- Sony Corporation
- Shoji Hirata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing a semiconductor device having ohmic electrode
- Patent number 5,924,002
- Issue date Jul 13, 1999
- Sony Corporation
- Tsuyoshi Tojyo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device having ohmic electrode and method of manufactu...
- Patent number 5,917,243
- Issue date Jun 29, 1999
- Sony Corporation
- Tsuyoshi Tojyo
- H01 - BASIC ELECTRIC ELEMENTS