Osamu OHYAMA

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Hokkaido, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rolled steel bar for machine structural use and method of producing...
- Patent number 10,266,908
- Issue date Apr 23, 2019
- Nippon Steel & Sumitomo Metal Corporation
- Hiromasa Takada
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Rolled steel bar for machine structural use and method of producing...
- Patent number 10,260,123
- Issue date Apr 16, 2019
- Nippon Steel & Sumitomo Metal Corporation
- Hiromasa Takada
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Steel for machine structural use and machine parts made from such s...
- Patent number 5,993,571
- Issue date Nov 30, 1999
- Isuzu Motors Limited and Nippon Steel Corporation
- Hirohito Eto
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
ROLLED STEEL BAR FOR MACHINE STRUCTURAL USE AND METHOD OF PRODUCING...
- Publication number 20170152578
- Publication date Jun 1, 2017
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Hiromasa TAKADA
- C21 - METALLURGY OF IRON
Information Patent Application
ROLLED STEEL BAR FOR MACHINE STRUCTURAL USE AND METHOD OF PRODUCING...
- Publication number 20170137904
- Publication date May 18, 2017
- NIPPON STEEL & SUMITOMO METAL CORPORATION
- Hiromasa TAKADA
- C21 - METALLURGY OF IRON