Ryuichi Kawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Servo motor apparatus
- Patent number 4,262,239
- Issue date Apr 14, 1981
- Ricoh Company, Ltd.
- Ryuichi Kawa
- G05 - CONTROLLING REGULATING
Information Patent Grant
Servo motor apparatus
- Patent number 4,258,301
- Issue date Mar 24, 1981
- Ricoh Company, Ltd.
- Ryuichi Kawa
- G05 - CONTROLLING REGULATING
Information Patent Grant
Character recognition apparatus
- Patent number 4,155,072
- Issue date May 15, 1979
- Ricoh Company, Ltd.
- Ryuichi Kawa
- G06 - COMPUTING CALCULATING COUNTING