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.:

US 6850474 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 01, 2005

Filed:

May. 24, 2001
Applicants:

Yoshitsugu Araki, Tsurugashima, JP;

Takanori Maeda, Tsurugashima, JP;

Inventors:

Yoshitsugu Araki, Tsurugashima, JP;

Takanori Maeda, Tsurugashima, JP;

Assignee:

Pioneer Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 700 ; G11B 724 ;
U.S. Cl.
CPC ...
Abstract

A recording method of a multilayer recording medium includes a first initializing step of initializing a lower recording layer based on a first initializing condition and a second initializing step of initializing an upper recording layer on the basis of a second initializing condition different from the first initializing condition. The second initializing condition is determined so that a transmittance of the recording layer after execution of the second initializing step is approximately equal to a transmittance of the recording layer after a predetermined data signal is recorded on an upper recording layer.


Find Patent Forward Citations

Araki, Yoshitsugu. (2005). Multilayer optical recording medium and recording method and apparatus for the same (U.S. Patent No. 6850474). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6850474

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