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. 28, 2009
Filed:
Sep. 12, 2007
Kazutoshi Hirohashi, Kanagawa-ken, JP;
Masahisa Sakai, Kanagawa-ken, JP;
Kazutoshi Hirohashi, Kanagawa-ken, JP;
Masahisa Sakai, Kanagawa-ken, JP;
Victor Company of Japan, Limited, Yokohama-shi, JP;
Abstract
A rotary jointcapable of stably transmitting superfine images and high-speed data is provided. The rotary jointincludes a stationary partand a rotary partrotatable about an axis against the stationary partand transmits light signals between the stationary partand the rotary partThe rotary partincludes at least one light transmissive cylindrical memberarranged coaxially with the axis, a light emitting elementand a light receiving elementboth arranged on one end of the memberWhile, the stationary partincludes a light receiving elementopposed to the light emitting elementin the rotary partand a light emitting elementopposed to the light receiving elementin the rotary part