Naoji Hamasaka

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
High surface pressure resistant steel parts and methods of producin...
- Patent number 6,447,619
- Issue date Sep 10, 2002
- Komatsu Ltd.
- Takemori Takayama
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
High surface pressure resistant steel parts and methods of producin...
- Patent number 6,413,328
- Issue date Jul 2, 2002
- Komatsu Ltd.
- Takemori Takayama
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Bushing for crawler belt and method of manufacture
- Patent number 6,270,595
- Issue date Aug 7, 2001
- Komatsu Ltd.
- Takemori Takayama
- C21 - METALLURGY OF IRON
Information Patent Grant
Carburized parts, method for producing same and carburizing system
- Patent number 6,258,179
- Issue date Jul 10, 2001
- Komatsu Ltd.
- Takemori Takayama
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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
Information Patent Grant
Multipurpose controlled atmosphere heat treatment system
- Patent number 5,624,255
- Issue date Apr 29, 1997
- Kabushiki Kaisha Komatsu Seisakusho
- Hideo Hisada
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
Rolling elements
- Publication number 20050247377
- Publication date Nov 10, 2005
- Komatsu Ltd.
- Takemori Takayama
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Rolling elements
- Publication number 20050241734
- Publication date Nov 3, 2005
- Komatsu Ltd.
- Takemori Takayama
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Rolling elements
- Publication number 20040035499
- Publication date Feb 26, 2004
- Komatsu Ltd.
- Takemori Takayama
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Bushing for crawler belt and method of manufacture
- Publication number 20010050121
- Publication date Dec 13, 2001
- KOMATSU LTD.
- Takemori Takayama
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH SURFACE PRESSURE RESISTANT STEEL PARTS AND METHODS OF PRODUCIN...
- Publication number 20010001396
- Publication date May 24, 2001
- Takemori Takayama
- TAKEMORI TAKAYAMA
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...