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:
Sep. 11, 2018
Filed:
Mar. 10, 2017
Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;
Toshiba Tec Kabushiki Kaisha, Shinagawa-ku, Tokyo, JP;
Yasushi Kuribayashi, Mishima Shizuoka, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
TOSHIBA TEC KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An exposure unit comprises a polygon mirror configured to include a plurality of reflection surfaces; first to fourth light sources arranged at different angle positions along a rotation direction of the polygon mirror; two photo detectors configured to selectively detect first laser light and fourth laser light respectively at a scanning start end side of a main scanning direction among first to fourth laser light which are emitted from the respective light sources and reflected by the polygon mirror to be scanned in the main scanning direction; and a control section configured to control light emitting timing of the first to the fourth light sources on the basis of detection results of these photo detectors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile