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. 19, 2019
Filed:
Nov. 16, 2015
Zeon Corporation, Chiyoda-ku, Tokyo, JP;
Takuya Miura, Tokyo, JP;
Masaya Hirano, Tokyo, JP;
ZEON CORPORATION, Chiyoda-ku, Tokyo, JP;
Abstract
A method for producing an optical film including a cutting step of performing irradiation with a laser light onto a layered body having a glass support and a resin layer provided on the support to cut the resin layer, wherein in the cutting step, the irradiation with the laser light is performed such that a beam of the laser light has a flat energy distribution, and a distance between a focus of the laser light and a receiving point of the laser light on a surface of the resin layer where the laser light is received or a ratio P/V of an output P of the laser light relative to a scanning speed V is in a specific range.