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:
Aug. 26, 2008
Filed:
Jun. 19, 2007
Hajime Yuzurihara, Kanagawa, JP;
Mikiko Abe, Kanagawa, JP;
Hiroshi Deguchi, Kanagawa, JP;
Eiko Hibino, Kanagawa, JP;
Hiroshi Miura, Kanagawa, JP;
Kazunori Ito, Kanagawa, JP;
Michiharu Abe, Kanagawa, JP;
Hajime Yuzurihara, Kanagawa, JP;
Mikiko Abe, Kanagawa, JP;
Hiroshi Deguchi, Kanagawa, JP;
Eiko Hibino, Kanagawa, JP;
Hiroshi Miura, Kanagawa, JP;
Kazunori Ito, Kanagawa, JP;
Michiharu Abe, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An optical recording method of recording information to a phase change optical recording medium with alternate application of peak power and bias power in a pulse manner and with changing a pulse application. interval continuously from an inner part through an outer part of the recording medium with an interval proportional to a window width Tw and a fixed interval, comprising the step of starting a top peak power application interval with a delay from a data input pulse signal starting time for a target mark length nTw, where n denotes an integer in a range between 3 and 14, with changing the delay in proportion to the window width Tw with changing a proportionality factor discretely with respect each linear velocity.