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:
Feb. 15, 2022
Filed:
Jul. 27, 2020
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Hisanori Kobayashi, Kawasaki, JP;
Yoshihiko Tanaka, Mishima, JP;
Naoki Matsushita, Suntou-gun, JP;
Takatoshi Tanaka, Atami, JP;
Mitsuhiro Ohta, Yokohama, JP;
Hiroki Katayama, Suntou-gun, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/12 (2006.01); G03G 15/04 (2006.01);
U.S. Cl.
CPC ...
G02B 26/12 (2013.01); G03G 15/04072 (2013.01);
Abstract
A rotary polygon mirror has no recess in a thickness region of one of the reflecting surfaces of the rotary polygon mirror in the direction of the rotation axis of the rotary polygon mirror and has a protruding portion protruding from the thickness region in a direction away from the thickness region.