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. 02, 2008
Filed:
Dec. 26, 2006
Yukio Itami, Kanagawa, JP;
Kazuhiro Koseki, Miyagi, JP;
Makoto Endo, Miyagi, JP;
Yoshihiro Takahashi, Miyagi, JP;
Tomotaka Takamura, Miyagi, JP;
Noriyuki Kadowaki, Miyagi, JP;
Takeshi Kikuchi, Miyagi, JP;
Hidetoshi Kojima, Miyagi, JP;
Takao Abe, Miyagi, JP;
Masao Hatayama, Miyagi, JP;
Yukio Itami, Kanagawa, JP;
Kazuhiro Koseki, Miyagi, JP;
Makoto Endo, Miyagi, JP;
Yoshihiro Takahashi, Miyagi, JP;
Tomotaka Takamura, Miyagi, JP;
Noriyuki Kadowaki, Miyagi, JP;
Takeshi Kikuchi, Miyagi, JP;
Hidetoshi Kojima, Miyagi, JP;
Takao Abe, Miyagi, JP;
Masao Hatayama, Miyagi, JP;
Ricoh Company, Ltd., Tokyo, JP;
Tohoku Ricoh Co., Ltd., Shibata-gun, JP;
Abstract
An optical deflector, a method of producing the optical deflector, an optical scanning device, and an image forming apparatus are disclosed that are able to save resources, provide high reliability at low cost, and enable stacked and relatively-offset polygon mirrors to be arranged precisely. The optical deflector includes a rotary member supported by a bearing with plural polygon mirrors fixed thereon. The polygon mirrors are stacked along a rotation axis of the rotary member, the polygon mirrors are relatively offset by a predetermined angle in a rotation plane of the rotary member, and an effective deflection area of each of the reflection surfaces of any one of the polygon mirrors is positioned away from a center of the corresponding reflection surfaces of the other one of the polygon mirrors in the direction of the rotation axis.