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:
Feb. 08, 2022
Filed:
Nov. 27, 2019
Applicant:
Sharp Kabushiki Kaisha, Sakai, JP;
Inventors:
Shinya Morino, Sakai, JP;
Tahei Nakaue, Sakai, JP;
Assignee:
SHARP KABUSHIKI KAISHA, Sakai, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); B29D 11/00 (2006.01); B29K 669/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0043 (2013.01); B29D 11/00663 (2013.01); G02B 6/0065 (2013.01); B29K 2669/00 (2013.01);
Abstract
The present invention provides a method for producing a light guide plate including a light-diffusing surface. The method includes (1) applying a protonic polar solvent to a surface of a polycarbonate substrate, and (2) heating the polycarbonate substrate in a water-containing environment to cause precipitation of bisphenol A particles each having a particle size of 10 μm or smaller on the surface of the polycarbonate substrate.
Morino, Shinya. (2022). Manufacturing method of light guide plate, light guide plate, backlight unit, and liquid crystal display device (U.S. Patent No. 11243341). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11243341
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile