Yasuo Yatsuda

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Key switch and keyboard
- Patent number 6,618,239
- Issue date Sep 9, 2003
- Fujitsu Limited
- Kouki Takahashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device and method of producing the same
- Patent number 6,191,494
- Issue date Feb 20, 2001
- Fujitsu Limited
- Nobuo Ooyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Data input device with a manually operable key having static electr...
- Patent number 5,401,926
- Issue date Mar 28, 1995
- Fujitsu Limited
- Michihiro Aoyama
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Key switch and keyboard
- Publication number 20020185364
- Publication date Dec 12, 2002
- Kouki Takahashi
- H01 - BASIC ELECTRIC ELEMENTS