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Keiji Yoshida
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Surface-treated steel sheet and method for manufacturing the same
Patent number
7,842,400
Issue date
Nov 30, 2010
JFE Steel Corporation
Takafumi Yamaji
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Prepainted steel sheet and method for producing the same
Patent number
6,617,048
Issue date
Sep 9, 2003
NKK Corporation
Keiji Yoshida
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Coated steel sheet and method for manufacturing the same
Patent number
6,610,422
Issue date
Aug 26, 2003
NKK Corporation
Toshihiko Ooi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Coating composition for precoated steel sheet, precoated steel shee...
Patent number
6,136,455
Issue date
Oct 24, 2000
NKK Corporation
Takashi Anyashiki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Coating composition and method for producing precoated steel sheets
Patent number
6,018,013
Issue date
Jan 25, 2000
NKK Corporation
Keiji Yoshida
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
Surface-treated steel sheet and method for producing same
Publication number
20060182988
Publication date
Aug 17, 2006
Takafumi Yamaji
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...