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:
Jan. 24, 1984
Filed:
Jun. 18, 1981
Applicant:
Inventors:
Takashi Suzuki, Yokohama, JP;
Kiyoshi Iizuka, Yokohama, JP;
Keiji Ohtaka, Tokyo, JP;
Hidemasa Mizutani, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350321 ; 350167 ;
Abstract
This application relates to a diffusion plate having microlens-like curved surfaces of a size of 10 to several tens of .mu.m arranged periodically in two dimensions on the surface of the substrate thereof. Curved surfaces are formed between the microlens-like curved surfaces. Further, irregularly arranged minute concave and/or convex surfaces are formed on the microlens-like curved surfaces.
Suzuki, Takashi. (1984). Diffusion plate (U.S. Patent No. 4427265). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4427265
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile