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. 17, 2026
Filed:
Aug. 18, 2021
Applicant:
Fujikura Ltd., Tokyo, JP;
Inventor:
Hiroyuki Yamagishi, Chiba, JP;
Assignee:
Fujikura Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/42 (2006.01);
U.S. Cl.
CPC ...
G02B 27/42 (2013.01);
Abstract
A light diffraction element unit includes an optically-transparent substrate; a light diffraction element disposed on a main surface of the optically-transparent substrate; and a three-dimensional alignment mark disposed on the main surface in a vicinity of the light diffraction element and having a thickness greater than a thickness of the light diffraction element.
Quick Actions:
Yamagishi, Hiroyuki. (2026). Light diffraction element unit, multistage light diffraction device, and manufacturing method for multistage light diffraction device (U.S. Patent No. 12554145). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12554145
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile