Masahiro Tobise

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Hitachinaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Power converter and motor driving system
- Patent number 8,164,297
- Issue date Apr 24, 2012
- Hitachi, Ltd.
- Daisuke Tan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power inverter device
- Patent number 6,028,779
- Issue date Feb 22, 2000
- Hitachi, Ltd.
- Kiyoshi Sakamoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor speed controller for suppressing shaft torsion vibration
- Patent number 5,545,957
- Issue date Aug 13, 1996
- Hitachi, Ltd.
- Kenji Kubo
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor speed control method and apparatus with drooping compensation...
- Patent number 5,256,944
- Issue date Oct 26, 1993
- Hitachi, Ltd.
- Masahiro Tobise
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Control system
- Patent number 5,245,257
- Issue date Sep 14, 1993
- Hitachi, Ltd.
- Masahiro Tobise
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Speed control apparatus for motor
- Patent number 4,814,678
- Issue date Mar 21, 1989
- Hitachi, Ltd.
- Tsutomu Omae
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
POWER CONVERTER AND MOTOR DRIVING SYSTEM
- Publication number 20100231150
- Publication date Sep 16, 2010
- Hitachi, Ltd.
- Daisuke TAN
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER