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:
Aug. 05, 2025
Filed:
Aug. 20, 2020
Tocalo Co., Ltd., Kobe, JP;
Hiroki Yokota, Akashi, JP;
Daisuke Kawai, Akashi, JP;
TOCALO CO., LTD., Kobe, JP;
Abstract
A surface treatment method is for processing a surface of a substrate. The method includes irradiating a surface having unevenness with a laser beam satisfying all of the three following requirements: a power density in a range with a radius of 25 μm from a center of a laser beam spot is 1.0×103 to 1.0×105 kW/cm2; a power density of an entire laser beam spot is 0.08 to 0.12 times the power density in the range with the radius of 25 μm from the center of the laser beam spot; and an action time in the range with the radius of 25 μm from the center of the laser beam spot is 1.7×10-6 to 1.0×10-5 seconds. The method leaves a certain roughness on the surface of the substrate while removing fine and sharp protrusions on the surface.