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. 25, 2007
Filed:
Aug. 27, 2003
Kunihiko Horikawa, Tokorozawa, JP;
Akira Shirota, Tokorozawa, JP;
Masahiro Kato, Tokorozawa, JP;
Eiji Muramatsu, Tokorozawa, JP;
Shoji Taniguchi, Tokorozawa, JP;
Kunihiko Horikawa, Tokorozawa, JP;
Akira Shirota, Tokorozawa, JP;
Masahiro Kato, Tokorozawa, JP;
Eiji Muramatsu, Tokorozawa, JP;
Shoji Taniguchi, Tokorozawa, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
When a bias power level of a recording pulse waveform is varied entirely or partially, a shape of the recording pulse wave form is varied according to the variation. For example, when the bias power level is increased, a width or an edge position of a top pulse or a multi-pulse of the recording pulse waveform is varied correspondingly. Thereby, a total heat quantity of a recording laser light is not increased, and a preferable recording characteristic is maintained.