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:
Oct. 13, 2015
Filed:
Oct. 15, 2013
Applicant:
Ricoh Imaging Company, Ltd., Tokyo, JP;
Inventor:
Tatsuyuki Onozaki, Tokyo, JP;
Assignee:
RICOH IMAGING COMPANY, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 9/20 (2006.01); G02B 13/02 (2006.01); G02B 9/64 (2006.01);
U.S. Cl.
CPC ...
G02B 13/02 (2013.01); G02B 9/20 (2013.01); G02B 9/64 (2013.01);
Abstract
A large-aperture telephoto lens system includes a positive first lens group, a negative second lens group, and a positive third lens group, in that order from the object side, wherein the second lens group serves as a focusing lens group which is moved during focusing on an object at infinity to an object at a finite distance,
Onozaki, Tatsuyuki. (2015). Large-aperture telephoto lens system (U.S. Patent No. 9158096). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9158096
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile