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:
Dec. 07, 2010
Filed:
May. 18, 2006
Applicants:
Hiroyoshi Sekiguchi, Kanagawa, JP;
Michiaki Shinotsuka, Kanagawa, JP;
Masaru Shinkai, Kanagawa, JP;
Eiko Hibino, Kanagawa, JP;
Masaki Kato, Kanagawa, JP;
Katsuyuki Yamada, Kanagawa, JP;
Inventors:
Hiroyoshi Sekiguchi, Kanagawa, JP;
Michiaki Shinotsuka, Kanagawa, JP;
Masaru Shinkai, Kanagawa, JP;
Eiko Hibino, Kanagawa, JP;
Masaki Kato, Kanagawa, JP;
Katsuyuki Yamada, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 7/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A power determining method is disclosed for determining the light emitting power of a light source upon recording information on an optical disk having plural rewritable recording layers, the method involving obtaining an optimum erasing power with respect to an optimum recording power by recording test data on the optical disk.