Masao Kumagai

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Machida, JP

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Patents Grantslast 30 patents

Information Patent Grant
Surface strengthening method
- Patent number 7,838,075
- Issue date Nov 23, 2010
- Jatco Ltd
- Masao Kumagai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Nondestructive inspection method and apparatus for a surface proces...
- Patent number 7,567,873
- Issue date Jul 28, 2009
- Fuji Manufacturing Co., Ltd.
- Takashi Kojima
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
Nondestructive inspection method and apparatus for a surface proces...
- Publication number 20080001609
- Publication date Jan 3, 2008
- Takashi Kojima
- C21 - METALLURGY OF IRON
Information Patent Application
Surface strengthening method
- Publication number 20070009662
- Publication date Jan 11, 2007
- JATCO Ltd.
- Masao Kumagai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR