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Yutaka Mihara
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Methods for making an easy-opening can end
Patent number
6,837,093
Issue date
Jan 4, 2005
NKK Corporation
Yuji Yamasaki
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Bulge forming method and apparatus
Patent number
5,927,119
Issue date
Jul 27, 1999
Toyota Jidosha Kabushiki Kaisha
Hidemitu Hamano
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Plug for manufacturing seamless steel pipe
Patent number
5,031,434
Issue date
Jul 16, 1991
NKK Corporation
Akira Takase
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method and apparatus for plate edge preparation for UOE pipe making...
Patent number
4,430,872
Issue date
Feb 14, 1984
Nippon Kokan Kabushiki Kaisha
Yutaka Mihara
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method and apparatus for producing thick welded steel pipe
Patent number
4,339,941
Issue date
Jul 20, 1982
Nippon Kokan Kabushiki Kaisha
Tadaaki Taira
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
Information
Patent Application
Methods for making an easy-opening can end
Publication number
20020170913
Publication date
Nov 21, 2002
NKK Corporation
Yuji Yamasaki
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Application
EASY-OPENING CAN END
Publication number
20020005408
Publication date
Jan 17, 2002
YUJI YAMASAKI
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL