Crown Screw Corporation

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Organization

Shiki-shi, Saitama-ken, 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...
Information Patent Grant
Structure for screwing object on sheet metal
- Patent number 4,659,246
- Issue date Apr 21, 1987
- Crown Screw Corporation
- Ichirou Sugiyama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method of making self tapping thread forming screw
- Patent number 4,368,552
- Issue date Jan 18, 1983
- Crown Screw Corporation
- Ichirou Sugiyama
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

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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...

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Trademarklast 30 trademarks

Information Trademark
74235956 - SUPERPLAX
- Serial number 74235956
- Filing date Jan 8, 1992
- Crown Screw Corporation
- 6 - Common metals and their alloys
Information Trademark
73281196 - DELTITE
- Serial number 73281196
- Registration number 1171968
- Filing date Oct 7, 1980
- Crown Screw Corporation
- 6 - Common metals and their alloys
Information Trademark
73269824 - POLY WAVE
- Serial number 73269824
- Registration number 1180823
- Filing date Jul 11, 1980
- Crown Screw Corporation
- 6 - Common metals and their alloys