Kohei Fujita

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Mie, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rolling bearing and heat treatment method for steel
- Patent number 7,641,742
- Issue date Jan 5, 2010
- NTN Corporation
- Chikara Ohki
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
Rolling bearing and heat treatment method for steel
- Publication number 20070169850
- Publication date Jul 26, 2007
- Chikara Ohki
- C21 - METALLURGY OF IRON