Chikara Nakao

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ferrous seal sliding parts and producing method thereof
- Patent number 8,083,869
- Issue date Dec 27, 2011
- Komatsu Ltd.
- Takemori Takayama
- C21 - METALLURGY OF IRON
Information Patent Grant
Case hardened gear and method of producing the same
- Patent number 7,691,213
- Issue date Apr 6, 2010
- Komatsu Ltd.
- Takemori Takayama
- C21 - METALLURGY OF IRON
Information Patent Grant
Rolling element and method of producing the same
- Patent number 7,422,643
- Issue date Sep 9, 2008
- Komatsu Ltd.
- Takemori Takayama
- C21 - METALLURGY OF IRON
Information Patent Grant
High-toughness wear-resistant steel
- Patent number 6,899,774
- Issue date May 31, 2005
- Komatsu Ltd.
- Takemori Takayama
- C21 - METALLURGY OF IRON
Information Patent Grant
Rolling element and producing method
- Patent number 6,309,475
- Issue date Oct 30, 2001
- Komatsu Ltd.
- Takemori Takayama
- C21 - METALLURGY OF IRON
Information Patent Grant
Gear shot peening method
- Patent number 5,911,780
- Issue date Jun 15, 1999
- Komatsu Ltd.
- Naoji Hamasaka
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
Ferrous seal sliding parts and producing method thereof
- Publication number 20080202652
- Publication date Aug 28, 2008
- Takemori Takayama
- C21 - METALLURGY OF IRON
Information Patent Application
Ferrous seal sliding parts and producing method thereof
- Publication number 20080060727
- Publication date Mar 13, 2008
- Takemori Takayama
- C21 - METALLURGY OF IRON
Information Patent Application
Rolling element and method of producing the same
- Publication number 20060021679
- Publication date Feb 2, 2006
- Komatsu Ltd.
- Takemori Takayama
- C21 - METALLURGY OF IRON
Information Patent Application
Ferrous seal sliding parts and producing method thereof
- Publication number 20050189045
- Publication date Sep 1, 2005
- Takemori Takayama
- C21 - METALLURGY OF IRON
Information Patent Application
Rolling element and method of producing the same
- Publication number 20040256029
- Publication date Dec 23, 2004
- Komatsu Ltd.
- Takemori Takayama
- C21 - METALLURGY OF IRON
Information Patent Application
High-toughness wear-resistant steel
- Publication number 20030026723
- Publication date Feb 6, 2003
- Takemori Takayama
- C21 - METALLURGY OF IRON