Toshifumi Yoshikawa

Follow

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Driving system for driving AC motor
- Patent number 6,492,790
- Issue date Dec 10, 2002
- Hitachi, Ltd.
- Toshifumi Yoshikawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control system for power transmission and distribution system
- Patent number 5,760,492
- Issue date Jun 2, 1998
- Hitachi, Ltd.
- Minoru Kanoi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Driving system for driving AC motor
- Publication number 20020005704
- Publication date Jan 17, 2002
- Toshifumi Yoshikawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER