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. 18, 2010
Filed:
Jan. 04, 2008
Applicants:
Taku Amada, Kanagawa, JP;
Seizo Suzuki, Kanagawa, JP;
Akihisa Itabashi, Tokyo, JP;
Hiroyuki Suhara, Kanagawa, JP;
Mitsuo Suzuki, Kanagawa, JP;
Inventors:
Taku Amada, Kanagawa, JP;
Seizo Suzuki, Kanagawa, JP;
Akihisa Itabashi, Tokyo, JP;
Hiroyuki Suhara, Kanagawa, JP;
Mitsuo Suzuki, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical scanning device includes a laser-beam-phase-modulatable liquid crystal device. The liquid crystal device has stripe-like electrode patterns arranged in one direction, with a provision of a part for changing an effective value of a driving voltage separately for each of stripe-like electrode patterns.