Invention Grant
- Patent Title: Optical disk and optical recording/reproducing device
- Patent Title (中): 光盘和光记录/再现装置
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Application No.: US10009155Application Date: 2000-04-26
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Publication No.: US07974158B2Publication Date: 2011-07-05
- Inventor: Takahashi Akira , Terashima Shigeo , Yamaoka Hideyoshi
- Applicant: Takahashi Akira , Terashima Shigeo , Yamaoka Hideyoshi
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Edwards Angell Palmer & Dodge LLP
- Agent David G. Conlin; William J. Daley, Jr.
- Priority: JP11-117488 19990426
- International Application: PCT/JP00/02751 WO 20000426
- International Announcement: WO00/65585 WO 20000211
- Main IPC: G11B11/00
- IPC: G11B11/00
Abstract:
A small-sized, large-capacity optical disk is provided which is superior in portability. The optical disk has a diameter less than 64 mm and a thickness less than 0.8 mm. Tracks are formed with a pitch less than 0.6 μm, and the record area is divided into a plurality of zones alone the radium. The optical disk can store more than 650 MB of compressed data.
Public/Granted literature
- US20110096644A1 OPTICAL DISK AND OPTICAL RECORDING/REPRODUCING DEVICE Public/Granted day:2011-04-28
Information query
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