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:
Dec. 12, 2023
Filed:
Feb. 18, 2021
Applicant:
Dexerials Corporation, Tokyo, JP;
Inventors:
Akio Takada, Sendai, JP;
Eiji Takahashi, Tagajo, JP;
Nobuyuki Koike, Sendai, JP;
Koji Sasaki, Miyagi, JP;
Naoki Hanashima, Sendai, JP;
Assignee:
Dexerials Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/01 (2006.01); G02B 5/30 (2006.01); G02B 1/14 (2015.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G02F 1/0136 (2013.01); G02B 5/3083 (2013.01); G02B 1/14 (2015.01); G02F 1/1335 (2013.01);
Abstract
Provided is a depolarizing plate having a superior degree of depolarization to conventional depolarizing plates. The depolarizing plate includes a light-transmitting substrate having a surface layer portion in which a fine pattern is provided that includes a plurality of curved lines randomly disposed at a pitch of no greater than a wavelength of light, and that exhibits structural birefringence.