You Ishii

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Heat treatment furnace
- Patent number 6,767,504
- Issue date Jul 27, 2004
- Koyo Thermo Systems Co., Ltd.
- Kiyoyuki Hattori
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
Heat treatment method and heat treatment furnace used therein
- Publication number 20020153073
- Publication date Oct 24, 2002
- Kiyoyuki Hattori
- C21 - METALLURGY OF IRON