Kazufumi Hanzawa

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Kitakyushu-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Core having superior end face insulation and method of treating cor...
- Patent number 7,471,182
- Issue date Dec 30, 2008
- Nippon Steel Corporation
- Tomoji Kumano
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Core having superior end face insulation and method of treating cor...
- Patent number 7,173,509
- Issue date Feb 6, 2007
- Nippon Steel Corporation
- Tomoji Kumano
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Non-oriented electrical steel sheet excellent in permeability and m...
- Patent number 6,425,962
- Issue date Jul 30, 2002
- Nippon Steel Corporation
- Ryutaro Kawamata
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
Core having superior end face insulation and method of treating cor...
- Publication number 20070188289
- Publication date Aug 16, 2007
- NIPPON STEEL CORPORATION
- Tomoji Kumano
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Iron core exhibiting excellent insulating property at end face, and...
- Publication number 20040046632
- Publication date Mar 11, 2004
- Tomoji Kumano
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...