The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 2018
Filed:
Apr. 10, 2015
Applicants:
Honda Motor Co., Ltd., Tokyo, JP;
Fanuc Corporation, Yamanashi, JP;
Inventors:
Mami Anzai, Sakura, JP;
Ichiro Fujimoto, Utsunomiya, JP;
Masato Sato, Utsunomiya, JP;
Mitsuru Sayama, Utsunomiya, JP;
Keisuke Tsuta, Utsunomiya, JP;
Ryouji Kitamura, Minamitsuru-gun, JP;
Assignees:
HONDA MOTOR CO., LTD., Tokyo, JP;
FANUC CORPORATION, Yamanashi, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23K 31/02 (2006.01); B23K 20/12 (2006.01); B23K 20/26 (2006.01);
U.S. Cl.
CPC ...
B23K 20/125 (2013.01); B23K 20/123 (2013.01); B23K 20/26 (2013.01);
Abstract
The friction stir welding apparatus includes a pin () on which a soft nitrided layer () is formed. The soft nitrided layer () is formed of an iron lithium oxide layer () and a nitrided diffusion layer (). The atom of the iron lithium oxide layer () penetrates into a space between atoms at the surface of the pin () to form the nitrided diffusion layer ().