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:
Apr. 01, 2014
Filed:
Mar. 08, 2012
Terunori Koyama, Sagamihara, JP;
Terunori Koyama, Sagamihara, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A lens barrel includes a fixed cylinder, a first rotary cylinder rotatably provided around an axis relative to the fixed cylinder, and a moving cylinder disposed inside of the first rotary cylinder to move integrally with the first rotary cylinder on the axis and rotate around the axis relative to the first rotary cylinder. The moving cylinder includes a front protrusion group of three or more protrusions and a rear protrusion group of two or more protrusions on an outer circumference. The first rotary cylinder includes, in an inner circumference, a first circumferential groove, a second circumferential groove, a first guide having three or more depressions, and a second guide having two or more depressions. The first rotary cylinder and the moving cylinder are coupled with each other by fitting the front and rear protrusion groups into the first and second circumferential grooves, respectively.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile