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:
May. 16, 2017
Filed:
Jun. 29, 2015
Applicant:
Minebea Co., Ltd., Kitasaku-Gun, Nagano, JP;
Inventor:
Satoshi Sato, Fujisawa, JP;
Assignee:
Minebea Co., Ltd., Nagano, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L 1/04 (2006.01); B23K 26/00 (2014.01); G01L 1/22 (2006.01);
U.S. Cl.
CPC ...
B23K 26/0078 (2013.01); G01L 1/2243 (2013.01);
Abstract
A surface treatment method for roughening a surface of a metal material by a laser beam includes: forming a roughened surface adhesion portion on the surface of the metal material by irradiating the laser beam on the surface of the metal material to form a plurality of roughened regions within the roughened surface adhesion portion, each of the roughened regions being formed in a circular shape having an outer ring adjacent to each other. The roughened regions are arranged to satisfy the following Equation (1):0.5a<d<1.5a  (1)