Mitsuhiro Ooyama

Follow

Person

Sukagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Motor speed control system
- Patent number 4,168,455
- Issue date Sep 18, 1979
- Yamamoto Electric Industrial Co., Ltd.
- Katsuji Soeda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor driven sewing machine
- Patent number 4,143,605
- Issue date Mar 13, 1979
- Yamamoto Electric Industrial Co., Ltd.
- Katsuji Soeda
- D05 - SEWING EMBROIDERING TUFTING
Information Patent Grant
Control apparatus for an electrically driven sewing machine with st...
- Patent number 4,142,472
- Issue date Mar 6, 1979
- Yamamoto Electric Industrial Co., Ltd.
- Katsuji Soeda
- D05 - SEWING EMBROIDERING TUFTING