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:
Jun. 17, 2014
Filed:
Jun. 09, 2011
Hiroshi Johno, Kanagawa, JP;
Takeshi Yamakawa, Kanagawa, JP;
Keiichi Serizawa, Kanagawa, JP;
Kazunori Watanabe, Tokyo, JP;
Hiroshi Johno, Kanagawa, JP;
Takeshi Yamakawa, Kanagawa, JP;
Keiichi Serizawa, Kanagawa, JP;
Kazunori Watanabe, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An optical scanner includes a housing, a light source, a polygon mirror, an optical device, and a holder. The housing includes a mounting portion. The light source projects light. The polygon mirror is enclosed within the housing and rotates to deflect the light projected from the light source. The optical device is disposed substantially near the polygon mirror. The holder is disposed within the housing and attached to the housing at the mounting portion, and holds the optical device in place. A distance Lbetween a center of rotation of the polygon mirror and the optical device is shorter than a distance Lbetween the center of rotation of the polygon mirror and the mounting portion. An image forming apparatus includes the optical scanner.