Invention Grant
- Patent Title: Dye for optical information recording medium and optical information recording medium
- Patent Title (中): 光学信息记录介质和光学信息记录介质用染料
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Application No.: US13139194Application Date: 2009-12-14
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Publication No.: US09135941B2Publication Date: 2015-09-15
- Inventor: Hidenori Somei , Takeo Tsuzuki , Takuo Kodaira , Daizo Yokoyama
- Applicant: Hidenori Somei , Takeo Tsuzuki , Takuo Kodaira , Daizo Yokoyama
- Applicant Address: JP Tokyo
- Assignee: TAIYO YUDEN CO., LTD.
- Current Assignee: TAIYO YUDEN CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Law Office of Katsuhiro Arai
- Priority: JP2008-325506 20081222
- International Application: PCT/JP2009/071083 WO 20091214
- International Announcement: WO2010/073971 WO 20100701
- Main IPC: G11B7/24
- IPC: G11B7/24 ; G11B7/2492 ; C09B29/036 ; C09B29/36 ; C09B45/18 ; C09B45/20 ; C09B45/22 ; G11B7/2467 ; G11B7/246 ; G11B7/249

Abstract:
Provided is an optical information recording medium employing an In-Groove recording system, and having a preferable recording characteristic with a high modulation degree and low jitter characteristics. The medium is comprised of a circular-disk shaped substrate 2 having a through hole at a center portion thereof and a helical guide groove 3 on one surface thereof; a reflective layer 4 formed on the guide groove 3 of the substrate 2; a recording layer 5 formed on the reflective layer 4 and composed of an organic material including a dye; a protection layer 6 provided on the recording layer 5; and a light-transmissive layer 7 formed on the protection layer 6. The recording layer 5 includes an organic dye which is an azo metal complex compound having a structure represented by (Chemical formula 1) and a functional group represented by (Chemical formula 2).
Public/Granted literature
- US20110244164A1 DYE FOR OPTICAL INFORMATION RECORDING MEDIUM AND OPTICAL INFORMATION RECORDING MEDIUM Public/Granted day:2011-10-06
Information query
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