Kazuhiko Hiraoka

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Himeji-Shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for evaluating reliability of steel and high-reliability ste...
- Patent number 7,971,484
- Issue date Jul 5, 2011
- Sanyo Special Steel Co., Ltd.
- Kaiko Sato
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Induction-hardened rolling bearing device
- Patent number 6,332,714
- Issue date Dec 25, 2001
- NSK Ltd.
- Hiromichi Takemura
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
Steel for machine structural use having improved machinability
- Publication number 20050191203
- Publication date Sep 1, 2005
- SANYO SPECIAL STEEL CO., LTD.
- Takeshi Fujimatsu
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Titanium-added, high strength steel
- Publication number 20040081576
- Publication date Apr 29, 2004
- SANYO SPECIAL STEEL CO., LTD.
- Kazuhiko Hiraoka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...