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:
Mar. 29, 2016
Filed:
May. 22, 2015
Kazunori Watanabe, Tokyo, JP;
Yoshinobu Sakaue, Kanagawa, JP;
Susumu Narita, Kanagawa, JP;
Hiroshi Johno, Kanagawa, JP;
Kazunori Watanabe, Tokyo, JP;
Yoshinobu Sakaue, Kanagawa, JP;
Susumu Narita, Kanagawa, JP;
Hiroshi Johno, Kanagawa, JP;
RICOH COMPANY, LIMITED, Tokyo, JP;
Abstract
An optical scanning device includes a light source configured to emit a light beam; a rotary deflector configured to perform optical scanning by reflecting and deflecting the light beam emitted from the light source while rotating; an optical system forming member configured to form a path of the light beam; and a resonator having a resonance frequency corresponding to a sound generated by rotational drive of the rotary deflector. The rotary deflector is installed in a closed space. The resonator is installed so that the sound within the closed space is absorbed.