Koji Yamaki

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Patents Grantslast 30 patents

Information Patent Grant
Tapping screw
- Patent number 7,780,388
- Issue date Aug 24, 2010
- Topura Co., Ltd.
- Koji Yamaki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
TAPPING SCREW
- Publication number 20090053008
- Publication date Feb 26, 2009
- TOPURA CO., LTD.
- Koji Yamaki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...