Nobuyoshi Hidao

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Kashiwa, JP

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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...
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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
Method and apparatus for quenching
- Patent number 4,509,995
- Issue date Apr 9, 1985
- Hitachi, Ltd.
- Takeshi Hachisu
- C21 - METALLURGY OF IRON