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. 26, 2025
Filed:
Mar. 24, 2021
Nitto Denko Corporation, Ibaraki, JP;
Hirofumi Katami, Ibaraki, JP;
Hirotaka Ohara, Ibaraki, JP;
Shuhei Fukutomi, Ibaraki, JP;
Shinya Yamamoto, Ibaraki, JP;
Takahiro Nonaka, Ibaraki, JP;
NITTO DENKO CORPORATION, Ibaraki, JP;
Abstract
A method for producing a pressure-sensitive adhesive sheet according to the present invention includes: forming a pressure-sensitive adhesive layerformed of a transparent base pressure-sensitive adhesive material on a support S; curing the pressure-sensitive adhesive layer; providing a solutionof an additive; applying the solutionto one of opposite surfaces of the cured pressure-sensitive adhesive layerto cause the additive contained in the solutionto infiltrate from the one surface in a thickness direction of the pressure-sensitive adhesive layer; and drying the pressure-sensitive adhesive layer