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. 17, 2007
Applicants:
Hidetake Itoh, Tokyo, JP;
Kazushi Tanaka, Tokyo, JP;
Naoki Hayashida, Tokyo, JP;
Hiroshi Take, Tokyo, JP;
Inventors:
Hidetake Itoh, Tokyo, JP;
Kazushi Tanaka, Tokyo, JP;
Naoki Hayashida, Tokyo, JP;
Hiroshi Take, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B41M 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical information medium includes a light-transmitting supporting substrate, an information recording layer on one surface of the supporting substrate, a protective layer on the information recording layer, and a light-transmitting hard coat layer on an other surface of the supporting substrate. The medium is configured to have a recording/reproducing beam incident into the information recording layer through the hard coat later and the supporting substrate.