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:
Nov. 01, 2016
Filed:
Feb. 04, 2016
Hitachi-lg Data Storage, Inc., Tokyo, JP;
Kouji Fukuda, Tokyo, JP;
Takashi Nagai, Tokyo, JP;
Akihiro Ashida, Tokyo, JP;
Yuuki Yamasaki, Tokyo, JP;
Shinsuke Takatsuka, Tokyo, JP;
Hitachi-LG Data Storage, Inc., Tokyo, JP;
Abstract
A disk conveyance unitconveys the disk mediumto a position where recording and reproducing are performed by the pickupwith the spindle motorheld. The disk conveyance unitincludes first movement mechanismsandfor moving a first conveyance framewith respect to fixed framesandand second movement mechanismsandfor moving a second conveyance frameholding a spindle motorwith respect to the first conveyance frame. The first and second movement mechanisms move to substantially the same direction and operate independently from each other. This allows the disk of the hologram recording and reproducing apparatus to be moved at a high speed and positioned at a high accuracy.