Tohru Hayashi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Steel product for induction hardening, induction-hardened member us...
- Patent number 7,678,207
- Issue date Mar 16, 2010
- JFE Steel Corporation
- Yasuhiro Omori
- C21 - METALLURGY OF IRON
Information Patent Grant
High-strength and high-toughness non heat-treated steel having exce...
- Patent number 6,162,389
- Issue date Dec 19, 2000
- Kawasaki Steel Corporation
- Kazukuni Hase
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of manufacturing thick steel product of high strength and hi...
- Patent number 5,989,366
- Issue date Nov 23, 1999
- Kawasaki Steel Corporation
- Tohru Hayashi
- C21 - METALLURGY OF IRON
Information Patent Grant
Bainitic steel materials having a less scattering of properties and...
- Patent number 5,900,076
- Issue date May 4, 1999
- Kawasaki Steel Corporation
- Tohru Hayashi
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of producing bainitic steel materials having a less scatteri...
- Patent number 5,766,381
- Issue date Jun 16, 1998
- Kawasaki Steel Corporation
- Tohru Hayashi
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
High-Strength Steel and Metal Bolt Excellent In Character of Delaye...
- Publication number 20080264524
- Publication date Oct 30, 2008
- Keiichi Maruta
- C21 - METALLURGY OF IRON
Information Patent Application
Steel For Machine Structural Use With Excellent Strength, Ductility...
- Publication number 20080017283
- Publication date Jan 24, 2008
- Keiichi Maruta
- C21 - METALLURGY OF IRON
Information Patent Application
Component for machine structural use and method for making the same
- Publication number 20070163687
- Publication date Jul 19, 2007
- Nobutaka Kurosawa
- C21 - METALLURGY OF IRON
Information Patent Application
Steel product for induction hardening, induction-hardened member us...
- Publication number 20070000582
- Publication date Jan 4, 2007
- Akihiro Matsuzaki
- C21 - METALLURGY OF IRON
Information Patent Application
Steel parts for machine structure, material therefor, and method fo...
- Publication number 20060196583
- Publication date Sep 7, 2006
- Tohru Hayashi
- C21 - METALLURGY OF IRON
Information Patent Application
Steel product for induction hardening, induction-hardened member us...
- Publication number 20060162823
- Publication date Jul 27, 2006
- Yasuhiro Omori
- C21 - METALLURGY OF IRON