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. 28, 1990
Filed:
Mar. 20, 1986
Applicant:
Inventors:
Satoshi Yuasa, Yokohama, JP;
Yukuo Nishimura, Sagamihara, JP;
Masahiro Haruta, Tokyo, JP;
Yoko Yoshinaga, Tokyo, JP;
Hirohide Munakata, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350354 ; 350353 ; 350363 ;
Abstract
An optical element comprises a gel layer exhibiting a light scattering property when heated and exhibiting transparency when cooled, and the gel layer is sandwiched between a transparent substrate and a transparent protective plate.
Yuasa, Satoshi. (1990). Optical element and device using same (U.S. Patent No. 4952035). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4952035
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile