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. 10, 2026
Filed:
Sep. 29, 2023
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Ken'ichi Kasazumi, Osaka, JP;
Keiji Sugiyama, Kyoto, JP;
Yukihiro Chokyu, Osaka, JP;
Masafumi Sueyoshi, Kanagawa, JP;
Kazuhiro Minami, Osaka, JP;
Assignee:
PANASONIC AUTOMOTIVE SYSTEMS CO., LTD., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); B60K 35/23 (2024.01); B60K 35/60 (2024.01); B60K 35/10 (2024.01);
U.S. Cl.
CPC ...
G02B 27/0103 (2013.01); B60K 35/23 (2024.01); B60K 35/60 (2024.01); B60K 35/10 (2024.01); G02B 2027/0105 (2013.01);
Abstract
A light guide plate includes a first hologram element including a plurality of diffraction cells. At least one of edge lines of one diffraction cell among the plurality of diffraction cells included in the first hologram element is located at a position other than on extensions of all edge lines of an adjacent diffraction cell adjacent to the one diffraction cell, the adjacent diffraction cell being included in the plurality of diffraction cells.