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:
Nov. 22, 2022
Filed:
Jul. 11, 2018
Applicant:
Sumitomo Electric Sintered Alloy, Ltd., Takahashi, JP;
Inventors:
Assignee:
Sumitomo Electric Sintered Alloy, Ltd., Takahashi, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 26/354 (2014.01); B23K 26/352 (2014.01); B22F 3/10 (2006.01); B23K 26/362 (2014.01); C22C 33/02 (2006.01);
U.S. Cl.
CPC ...
B23K 26/354 (2015.10); B22F 3/10 (2013.01); B23K 26/3576 (2018.08); B23K 26/362 (2013.01); C22C 33/02 (2013.01);
Abstract
A method according to one aspect of the present disclosure is a laser marking method for a powder compact containing metal powder, which includes: a first step of scanning with laser light of first power which is weaker over a predetermined area in a surface of the powder compact, to melt and smooth inside of the predetermined area; and a second step of scanning with laser light of second power which is greater, to form a dot formed of a recess of a predetermined depth at a predetermined location in the predetermined area.