Masaaki Ohkubo

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Human body vibration evaluation device and hand-held vibration tool
- Patent number 6,490,930
- Issue date Dec 10, 2002
- Fuji Air Tools Co., Ltd.
- Masaaki Ohkubo
- B24 - GRINDING POLISHING
Information Patent Grant
Tightening control apparatus for a torque wrench
- Patent number 5,113,949
- Issue date May 19, 1992
- Fuji Kuuki Kabushiki Kaisha
- Masaaki Ohkubo
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Hydraulic torque wrench
- Patent number 4,785,693
- Issue date Nov 22, 1988
- Fuji Kuuki Kabushiki Kaisha
- Toshimasa Minamiyama
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS