Riken Denshi Co., Ltd.

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Detector for activity direction of magma
- Patent number 5,386,114
- Issue date Jan 31, 1995
- Riken Denshi Co., Ltd.
- Soichiro Yasunaga
- G01 - MEASURING TESTING
Information Patent Grant
Method and equipment for prediction of volcanic eruption and earthq...
- Patent number 5,241,175
- Issue date Aug 31, 1993
- Riken Denshi Co., Ltd.
- Soichiro Yasunaga
- G01 - MEASURING TESTING
Information Patent Grant
Potentiometer for voltage-measuring instrument
- Patent number 4,994,733
- Issue date Feb 19, 1991
- Riken Denshi Co., Ltd.
- Soichiro Yasunaga
- G01 - MEASURING TESTING
Information Patent Grant
Device for determining location of apertures
- Patent number 4,980,570
- Issue date Dec 25, 1990
- Riken Denshi Co., Ltd
- Soichiro Yasunaga
- G01 - MEASURING TESTING
Information Patent Grant
Multiple function type D/A converter
- Patent number 4,636,772
- Issue date Jan 13, 1987
- Riken Denshi Co. Ltd.
- Soichiro Yasunaga
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Range switching device for electric meter
- Patent number 4,433,287
- Issue date Feb 21, 1984
- Riken Denshi Co., Ltd.
- Akiro Morita
- G01 - MEASURING TESTING

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