Keijirou Sakai

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Kanasago, JP

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Patents Grantslast 30 patents

Information Patent Grant
Drive apparatus and XY table utilizing the same
- Patent number 6,975,048
- Issue date Dec 13, 2005
- Hitachi, Ltd.
- Houng Joong Kim
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Linear motor, its controlling method, and XY table
- Patent number 6,876,108
- Issue date Apr 5, 2005
- Hitachi, Ltd.
- Kohji Maki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
PWM converter system
- Patent number 6,556,464
- Issue date Apr 29, 2003
- Hitachi, Ltd.
- Keijirou Sakai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Linear motor, its controlling method, and XY table
- Publication number 20040150269
- Publication date Aug 5, 2004
- Kohji Maki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Drive apparatus and XY table utilizing the same
- Publication number 20040021373
- Publication date Feb 5, 2004
- Houng Joong Kim
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
PWM converter system
- Publication number 20020154526
- Publication date Oct 24, 2002
- Keijirou Sakai
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...