Tatsuo Kuwayama

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Patents Grantslast 30 patents

Information Patent Grant
Splashproof construction for portable type electronic device
- Patent number 5,665,485
- Issue date Sep 9, 1997
- Kokusai Electric Co., Ltd.
- Tatsuo Kuwayama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Portable wireless telephone
- Patent number D380750
- Issue date Jul 8, 1997
- Kokusai Electric Co., Ltd.
- Takeshi Sato
- D14 - Recording, communication, or information retrieval equipment