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:
Feb. 19, 2013
Filed:
Oct. 16, 2008
Masataka Tamura, Yokohama, JP;
Yoshinobu Makino, Machida, JP;
Wataru Kono, Yokohama, JP;
Katsunori Shiihara, Yokohama, JP;
Yoshimi Tanaka, Chigasaki, JP;
Masaki Yoda, Yokohama, JP;
Yoshio Hamamoto, Yokohama, JP;
Satoshi Okada, Ota-Ku, JP;
Hiromi Kato, Yokohama, JP;
Masataka Tamura, Yokohama, JP;
Yoshinobu Makino, Machida, JP;
Wataru Kono, Yokohama, JP;
Katsunori Shiihara, Yokohama, JP;
Yoshimi Tanaka, Chigasaki, JP;
Masaki Yoda, Yokohama, JP;
Yoshio Hamamoto, Yokohama, JP;
Satoshi Okada, Ota-Ku, JP;
Hiromi Kato, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A method of sealing a surface crack in a member is provided includes steps of irradiating a region of the member at which the crack is produced with a heating laser beam so as to heat the region to a temperature lower than a melting point of the member, and then irradiating a region of the member at which the crack is produced with a welding laser beam subsequent to irradiation of the heating laser beam so as to heat the region to a temperature higher than or equal to the melting point of the member, thereby sealing an opening of the surface crack of the member.