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:
Oct. 08, 2002
Filed:
Nov. 27, 2000
Applicant:
Inventors:
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 2/620 ; B23K 3/102 ;
U.S. Cl.
CPC ...
B23K 2/620 ; B23K 3/102 ;
Abstract
An abutting end portions of the strips are heated from below to a temperature range where annealing effects are obtained by means of a movable heating apparatus which performs high-frequency induction heating and a laser beam (or arc or electron beam) is irradiated from above, at the same speed as that of the movable heating apparatus, to laser beam weld (or arc or electron beam weld) the abutting end portions.