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:
May. 01, 2012
Filed:
Oct. 07, 2009
Yukio Itami, Kanagawa, JP;
Tomoya Ohsugi, Kanagawa, JP;
Magane Aoki, Kanagawa, JP;
Tomohiro Nakajima, Kanagawa, JP;
Yoshinori Hayashi, Kanagawa, JP;
Naoki Miyatake, Kanagawa, JP;
Kensuke Masuda, Tokyo, JP;
Naoto Watanabe, Kanagawa, JP;
Satoshi Tsuchiya, Kanagawa, JP;
Yukio Itami, Kanagawa, JP;
Tomoya Ohsugi, Kanagawa, JP;
Magane Aoki, Kanagawa, JP;
Tomohiro Nakajima, Kanagawa, JP;
Yoshinori Hayashi, Kanagawa, JP;
Naoki Miyatake, Kanagawa, JP;
Kensuke Masuda, Tokyo, JP;
Naoto Watanabe, Kanagawa, JP;
Satoshi Tsuchiya, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An optical scanning device includes an optical housing in which a polygon mirror that is rotated by a motor is accommodated and an air inlet that includes a filter. An airflow guiding member is arranged at a position opposite to a surface of the polygon mirror on the air inlet side. An air inducing path is provided, which includes a first flowing path and a second flowing path. The first flowing path includes a first end linked to the air inlet and a second end arranged close to a mirror surface of the polygon mirror. The second flowing path is formed with a surface of the airflow guiding member on an opposite side of the air inlet and a top surface of the polygon mirror.