Invention Grant
- Patent Title: Protection member and optical pickup device using the same
- Patent Title (中): 保护构件和使用其的光学拾取装置
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Application No.: US11730167Application Date: 2007-03-29
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Publication No.: US07710846B2Publication Date: 2010-05-04
- Inventor: Junichi Moriyama , Kazuaki Mochida , Sunao Inoue
- Applicant: Junichi Moriyama , Kazuaki Mochida , Sunao Inoue
- Applicant Address: JP Osaka
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Osaka
- Agency: Sughrue Mion, PLLC
- Priority: JP2006-092105 20060329
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
The present invention provides: a protection member used for preventing a contact between a lens for focusing light on an optical information recording medium and the optical information recording medium upon optically recording or reproducing information on or from the optical information recording medium, the protection member including an ultrahigh molecular weight polyethylene porous film; and an optical pickup device having the protection member.
Public/Granted literature
- US20070230310A1 Protection member and optical pickup device using the same Public/Granted day:2007-10-04
Information query
IPC分类:
