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:
Nov. 27, 1990
Filed:
Jun. 23, 1989
Applicant:
Inventor:
Yoichi Yamamoto, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ; H04N / ;
U.S. Cl.
CPC ...
346108 ; 358298 ;
Abstract
A laser beam projecting unit, including a plurality of laser beam generators which are selectively energized according to the level of halftone, and a laser beam combiner for combining the laser beams emitted from the laser beam generator. Moreover, a laser writing apparatus is disclosed which comprises the laser beam projecting unit as mentioned above and a recording medium for receiving the laser beam combined in the laser beam combiner.
Quick Actions:
Yamamoto, Yoichi. (1990). Halftone laser recording with plural beams (U.S. Patent No. 4973989). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4973989
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile