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Chihiro Hayashi
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Sendai-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method for producing seamless metal pipe
Patent number
10,232,418
Issue date
Mar 19, 2019
Nippon Steel & Sumitomo Metal Corporation
Chihiro Hayashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method for producing ultrathin-wall seamless metal tube by cold rol...
Patent number
8,528,378
Issue date
Sep 10, 2013
Nippon Steel & Sumitomo Metal Corporation
Chihiro Hayashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PRODUCING SEAMLESS METAL PIPE
Publication number
20170001225
Publication date
Jan 5, 2017
NIPPON STEEL & SUMITOMO METAL CORPORATION
Chihiro HAYASHI
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Method of producing ultra thin wall metallic tube by cold drawing p...
Publication number
20090193868
Publication date
Aug 6, 2009
Chihiro Hayashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Method for producing ultra thin wall metallic tube with cold workin...
Publication number
20090038360
Publication date
Feb 12, 2009
Chihiro Hayashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Method for producing ultra thin wall metallic tube with cold workin...
Publication number
20080148795
Publication date
Jun 26, 2008
Chihiro Hayashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Method for manufacturing seamless pipes or tubes
Publication number
20070022796
Publication date
Feb 1, 2007
Chihiro Hayashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Piercing method for manufacturing of seamless pipe
Publication number
20060174670
Publication date
Aug 10, 2006
Chihiro Hayashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...