Hiroaki Okachi

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Patents Grantslast 30 patents

Information Patent Grant
Motor drive control apparatus having a plurality of motor character...
- Patent number 5,459,386
- Issue date Oct 17, 1995
- Mitsubishi Denki Kabushiki Kaisha
- Hiroaki Okachi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Spindle position/speed control unit
- Patent number 5,260,631
- Issue date Nov 9, 1993
- Mitsubishi Denki K.K.
- Takahiro Hayashida
- G05 - CONTROLLING REGULATING
Information Patent Grant
Spindle driving device for a machine tool
- Patent number 5,197,363
- Issue date Mar 30, 1993
- Mitsubishi Denki K.K.
- Hiroaki Okachi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
AC motor speed control apparatus
- Patent number 4,751,447
- Issue date Jun 14, 1988
- Mitsubishi Denki Kabushiki Kaisha
- Hiroaki Okachi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER