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:
Oct. 16, 1990
Filed:
Jul. 11, 1989
Applicant:
Inventors:
Kazunori Murakami, Shizuoka, JP;
Yasuo Matsumoto, Shizuoka, JP;
Tomonori Ikumi, Shizuoka, JP;
Shoichi Sato, Tokyo, JP;
Assignee:
Tokyo Electric Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350-67 ; 350-68 ; 355 84 ; 358296 ; 358481 ; 250235 ; 2502082 ;
Abstract
An optical scanner for a laser printer or the like, capable of forming dots on scanning lines which are apparently the same in length. When the respective scanning speeds of spots of laser beams reflected respectively by a plurality of reflecting surfaces of a polygonal rotating mirror are different from each other, correction clock pulses are inserted in a print control clock signal for each scanning line.
Murakami, Kazunori. (1990). Optical scanner (U.S. Patent No. 4962981). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4962981
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile