Eiji Kometani

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Patents Grantslast 30 patents

Information Patent Grant
Method of gas sulphonitriding
- Patent number 5,290,369
- Issue date Mar 1, 1994
- Hitachi Construction Machinery Co., Ltd.
- Kazuyoshi Hatano
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Sliding member, and method and apparatus for producing the same by...
- Patent number 5,187,017
- Issue date Feb 16, 1993
- Hitachi Construction Machinery Co., Ltd.
- Kazuyoshi Hatano
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Thrust hydrostatic bearing device for use in axial piston machine
- Patent number 4,788,902
- Issue date Dec 6, 1988
- Hitachi Ltd.
- Yoshimichi Akasaka
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...