Haruo Okamoto

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Internal gear oil pump made of aluminum alloys
- Patent number 6,382,942
- Issue date May 7, 2002
- Mitsubishi Materials Corporation
- Masato Otsuki
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...