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:
Feb. 23, 2010
Filed:
Dec. 15, 2006
Applicants:
Katsunori Shoji, Chigasaki, JP;
Takeshi Yamakawa, Fujisawa, JP;
Hiroshi Yoshizawa, Kawasaki, JP;
Inventors:
Assignee:
Ricoh Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 15/14 (2006.01); G02B 26/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical writing unit, e.g., that can be included in an image forming apparatus includes a housing within which are disposed additional components of the optical writing unit including the following, a plurality of optical elements, a polygon mirror configured to deflect a laser light beam, and a collecting member configured to collect dust in the housing.