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:
Aug. 21, 2007
Filed:
Aug. 09, 2004
Applicants:
Katsuhiko Nuno, Ohta-ku, JP;
Ikuya Tsurukawa, Ohta-ku, JP;
Kaoru Ito, Ohta-ku, JP;
Junichi Shinohara, Ohta-ku, JP;
Akihiro Etoh, Ohta-ku, JP;
Inventors:
Katsuhiko Nuno, Ohta-ku, JP;
Ikuya Tsurukawa, Ohta-ku, JP;
Kaoru Ito, Ohta-ku, JP;
Junichi Shinohara, Ohta-ku, JP;
Akihiro Etoh, Ohta-ku, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/02 (2006.01); G03B 17/00 (2006.01); G03B 21/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lens barrel, including, a moving frame () to hold a lens (), a direct-advance ring () provided on an outer periphery of the moving frame and movable relative to the moving frame in an optical direction, a resilient member () provided between the moving frame and the direct-advance ring, and a control part () provided on the moving frame to control an amount of movement of the direct-advance ring in the optical direction.