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:
Nov. 08, 2010
Applicant:
Noboru Sasa, Kanagawa, JP;
Inventor:
Noboru Sasa, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/24 (2013.01); G11B 7/258 (2013.01); G11B 7/24035 (2013.01); G11B 7/0045 (2006.01); G11B 7/257 (2013.01); G11B 7/247 (2013.01);
U.S. Cl.
CPC ...
G11B 7/24035 (2013.01); G11B 2007/2571 (2013.01); G11B 7/00456 (2013.01); G11B 2007/25706 (2013.01); G11B 7/258 (2013.01); G11B 7/00455 (2013.01); G11B 2007/25716 (2013.01); G11B 2007/25715 (2013.01); G11B 7/24 (2013.01); G11B 2007/24705 (2013.01);
Abstract
A write-only-read-many type optical recording medium includes a substrate, an organic material layer having a light absorption function that is sufficient for recording in the recording/reproduction wavelength range, the organic material layer being situated on the substrate, and a reflection layer being situated on the organic material layer. The recording medium is configured to have a Low-to-High recording property and record with a laser having a wavelength that is no greater than 500 nm.