Katsuhiro Tsukiyama

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Screw and screw fastening structure
- Patent number 7,976,258
- Issue date Jul 12, 2011
- Saga Tekkohsho Co., Ltd.
- Tetsuya Asai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for manufacturing high strength bolt excellent in resistance...
- Patent number 6,605,166
- Issue date Aug 12, 2003
- Kabushiki Kaisha Kobe Seiko Sho
- Seiichi Koike
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
SCREW AND SCREW FASTENING STRUCTURE
- Publication number 20090290953
- Publication date Nov 26, 2009
- Tetsuya Asai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
High-strength bolt superior in delayed fracture and resistance and...
- Publication number 20070187003
- Publication date Aug 16, 2007
- Honda Motor Co., Ltd.
- Mitsuo Takashima
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Method for manufacturing high strength bolt excellent in resistance...
- Publication number 20020179207
- Publication date Dec 5, 2002
- Seiichi Koike
- C21 - METALLURGY OF IRON