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. 01, 1995
Filed:
Dec. 03, 1992
Applicant:
Inventors:
Toshiyuki Kanda, Chigasaki, JP;
Hisao Tajima, Yokohama, JP;
Hiroshi Takabayashi, Kawasaki, JP;
Takashi Yamamoto, Yamato, JP;
Hideo Mori, Fujisawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V / ; G02F / ;
U.S. Cl.
CPC ...
362 31 ; 385 95 ; 385 96 ; 385 98 ; 385901 ;
Abstract
A surface lighting device receiving incident rays through two opposing faces of a light guide from light source to emit the incident rays from a face different from the two faces. The light guide is divided into plural divisions which are jointed together.
Kanda, Toshiyuki. (1995). Surface lighting device and a display having such a lighting device (U.S. Patent No. 5438484). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5438484
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile