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:
Sep. 30, 2014
Filed:
Jul. 20, 2012
Emi Kitano, Nara, JP;
Harumitsu Miyashita, Nara, JP;
Ryoji Hirose, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
This optical read/write apparatus has first and second optical headsand includes location control sectionswhich make the relative arrangement of the first and second optical headsvariable according to either the environmental temperature or from one medium to another. The first optical headperforms a write operation to record a mark on an optical storage medium, and the second optical headreads the information that has been written by scanning the recorded mark. The apparatus further includes a nonvolatile memory which saves the relative arrangement of the first and second optical headsandeither on an environmental temperature basis or on a medium by medium basis.