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. 06, 2016
Filed:
May. 06, 2014
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Koichi Tanaka, Kashiwa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 15/16 (2006.01);
U.S. Cl.
CPC ...
G03G 15/757 (2013.01); G03G 15/1615 (2013.01); G03G 2215/0129 (2013.01); Y10T 74/19684 (2015.01);
Abstract
An image forming apparatus includes a speed reduction device including a first gear and a second gear meshing each other. A ratio between teeth of the first gear and teeth of the second gear is an integer. One of the first gear and the second gear has a large diameter, and the other has a small diameter. The entire gear or the teeth of the gear having the large diameter is formed of a material having a higher modulus of longitudinal elasticity than a modulus of longitudinal elasticity of the gear having the small diameter.