Nobuhiro Ogawa

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Self-tapping screw and method of manufacturing the same
- Patent number 9,926,962
- Issue date Mar 27, 2018
- Crown Screw Corporation
- Nobuhiro Ogawa
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Structure of cross-shaped groove of screw for fit with driver bit
- Patent number 8,757,950
- Issue date Jun 24, 2014
- Crown Screw Corporation
- Nobuhiro Ogawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
SELF-TAPPING SCREW AND METHOD OF MANUFACTURING THE SAME
- Publication number 20160258467
- Publication date Sep 8, 2016
- CROWN SCREW CORPORATION
- Nobuhiro OGAWA
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
STRUCTURE OF CROSS-SHAPED GROOVE OF SCREW FOR FIT WITH DRIVER BIT
- Publication number 20110182696
- Publication date Jul 28, 2011
- Nobuhiro Ogawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...