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:
Sep. 30, 2025
Filed:
Aug. 11, 2020
Hitachi Astemo, Ltd., Hitachinaka, JP;
Takahiro Mori, Ibaraki, JP;
Shin Onose, Ibaraki, JP;
Kenichi Nakayama, Ibaraki, JP;
Yuta Chiba, Ibaraki, JP;
Masaaki Suzuki, Ibaraki, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
An object of the present invention is to suppress blow holes in welding using tough pitch copper. A welding method includes a first step of heating at least a portion of a first conductor and a second conductor containing copper, and a second step of adding a filler metal containing phosphorus while melting the first conductor and the second conductor so that a phosphorus content rate in a welded portion at which an end portion of the first conductor and an end portion of the second conductor are connected to each other is equal to or more than 0.1%.