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. 26, 2026
Filed:
Sep. 23, 2022
Nitto Denko Corporation, Ibaraki, JP;
Masamichi Matsumoto, Ibaraki, JP;
Hirofumi Katami, Ibaraki, JP;
Sho Takarada, Ibaraki, JP;
Ryohei Sawazaki, Ibaraki, JP;
Kazuma Mitsui, Ibaraki, JP;
NITTO DENKO CORPORATION, Ibaraki, JP;
Abstract
An object of the present invention is to provide a pressure-sensitive adhesive sheet, an optical member, and a touch panel that enable a pressure-sensitive adhesive layer to be formed, the pressure-sensitive adhesive layer allowing the appearance of a display device and an input device to be unlikely to deteriorate even under low pressure conditions. The pressure-sensitive adhesive sheet has a pressure-sensitive adhesive layer, and the number of the voids having a diameter of 300 μm or more in the following low pressure test is less than 10, and the number of the voids having a diameter of not less than 50 and less than 300 μm in the following low pressure test is less than 20.