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:
Jan. 29, 2013
Filed:
May. 30, 2008
Shuho Tsubota, Takasago, JP;
Takashi Ishide, Nagasaki, JP;
Takashi Akaba, Kobe, JP;
Hironori Onitsuka, Kobe, JP;
Kenichi Kawanishi, Kobe, JP;
Shuho Tsubota, Takasago, JP;
Takashi Ishide, Nagasaki, JP;
Takashi Akaba, Kobe, JP;
Hironori Onitsuka, Kobe, JP;
Kenichi Kawanishi, Kobe, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
Aims are to provide a tubular-body residual-stress improving apparatus and an adjustment method thereof capable of adjusting irradiation position with favorable reproducibility, even when an optical fiber is eccentric. In the tubular-body residual-stress improving apparatus, an optical control unit () includes a rotational hold mechanism () for holding an optical fiber () in a manner that the optical fiber () is rotatable in a circumferential direction of the optical fiber (), and, if a position of an intensity peak of the laser beam from the optical fiber () in an axial direction of the tubular body () is offset from the center of an irradiation profile, a position at which the optical fiber () is held in the circumferential direction is adjusted by the rotational hold mechanism () so as to eliminate the offset or to minimize an influence of the offset.