Keishin Tsuchiya

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Tachikawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Travelling carriage driving apparatus
- Patent number 5,012,354
- Issue date Apr 30, 1991
- Ricoh Company, Ltd.
- Keishin Tsuchiya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of detecting origin of shear and measuring amount of shear i...
- Patent number 4,743,118
- Issue date May 10, 1988
- Ricoh Company, Ltd.
- Keishin Tsuchiya
- G01 - MEASURING TESTING
Information Patent Grant
Remote meter reading system
- Patent number 4,316,262
- Issue date Feb 16, 1982
- Ricoh Co., Ltd.
- Toshiaki Mizuta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Alarm system having phase-sensitive bridge circuit
- Patent number 4,228,429
- Issue date Oct 14, 1980
- Ricoh Company, Ltd.
- Keishin Tsuchiya
- G08 - SIGNALLING
Information Patent Grant
Data collection system
- Patent number 4,162,484
- Issue date Jul 24, 1979
- Ricoh Co., Ltd.
- Takeshi Abe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE