Invention Grant
- Patent Title: Recording apparatus, master manufacturing apparatus, and method of manufacturing an optical disc recording medium
- Patent Title (中): 记录装置，主制造装置和制造光盘记录介质的方法
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Application No.: US13367568Application Date: 2012-02-07
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Publication No.: US08411545B2Publication Date: 2013-04-02
- Inventor: Shinobu Hayashi , Akiya Saito
- Applicant: Shinobu Hayashi , Akiya Saito
- Applicant Address: JP JP
- Assignee: Sony Corporation,Sony DADC Corporation
- Current Assignee: Sony Corporation,Sony DADC Corporation
- Current Assignee Address: JP JP
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Priority: JPP2011-029661 20110215
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
A recording apparatus includes a rotation driving portion that rotates and drives an optical disc master; and a recording portion that performs an information recording on the optical disc master, by performing a laser beam irradiation on the optical disc master, based on a recording waveform which has a land pulse of a first power, a recording waveform portion having a recording pulse of a second power higher than the first power, and a cooling pulse which has a third power lower than the first power and is inserted between the land pulse and the recording waveform portion.
Public/Granted literature
Information query
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