JH CORPORATION

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Niwa-gun, JP

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Patents Grantslast 30 patents

Information Patent Grant
Vacuum heat-treatment apparatus
- Patent number 6,814,573
- Issue date Nov 9, 2004
- JH Corporation
- Noboru Hiramoto
- C21 - METALLURGY OF IRON
Information Patent Grant
Vacuum carburizing method and device, and carburized products
- Patent number 5,702,540
- Issue date Dec 30, 1997
- JH Corporation
- Ken Kubota
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

Information Patent Application
Vacuum heat-treatment apparatus
- Publication number 20030113186
- Publication date Jun 19, 2003
- JH CORPORATION
- Noboru Hiramoto
- C21 - METALLURGY OF IRON

Trademarklast 30 trademarks