Hitoshi Goi

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Hamamatsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cementation method of metals
- Patent number 5,795,406
- Issue date Aug 18, 1998
- Dowa Mining Co., Ltd.
- Toshiyuki Kawamura
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Apparatus for steel hardening and process therefor
- Patent number 5,795,538
- Issue date Aug 18, 1998
- Dowa Mining Co., Ltd.
- Fumitaka Abukawa
- C21 - METALLURGY OF IRON
Information Patent Grant
Gas carburizing process and an apparatus therefor
- Patent number 5,676,769
- Issue date Oct 14, 1997
- Dowa Mining Co. Ltd.
- Toshiyuki Kawamura
- C21 - METALLURGY OF IRON
Information Patent Grant
Gas-carburizing process and apparatus
- Patent number 5,225,144
- Issue date Jul 6, 1993
- Tokyo Heat Treating Company
- Keishichi Nanba
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Gas-carburizing process and apparatus
- Patent number 5,133,813
- Issue date Jul 28, 1992
- Tokyo Heat Treating Company Ltd.
- Keishichi Nanba
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Gas carburizing method and apparatus
- Patent number 4,950,334
- Issue date Aug 21, 1990
- Mitsubishi Jidosha Kogyo Kabushiki Kaisha
- Nobuo Nishioka
- C21 - METALLURGY OF IRON