Masao Murakawa

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Heat absorbing throw-away tip and heat absorbing throw-away tool us...
- Patent number 6,637,984
- Issue date Oct 28, 2003
- Masao Murakawa
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Press for manufacturing helical gears
- Patent number 4,770,572
- Issue date Sep 13, 1988
- Amino Iron Works Co., Ltd.
- Kiyoyasu Ohkawa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Heat absorbing throw-away tip and heat absorbing throw-away tool us...
- Publication number 20020106250
- Publication date Aug 8, 2002
- Masao Murakawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC