Sunao Takahashi

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Sendai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Time divisional duplex (TDD) system portable telephone relay device
- Patent number 6,342,777
- Issue date Jan 29, 2002
- Kokusai Electric Co., Ltd.
- Sunao Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Temperature compensated level detector
- Patent number 5,113,336
- Issue date May 12, 1992
- Kokusai Electric Co., Ltd.
- Sunao Takahashi
- G01 - MEASURING TESTING