Invention Grant
- Patent Title: Near-field optical head and information recording/reproducing device
- Patent Title (中): 近场光头和信息记录/再现装置
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Application No.: US12452098Application Date: 2008-06-13
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Publication No.: US08351304B2Publication Date: 2013-01-08
- Inventor: Majung Park , Manabu Oumi , Masakazu Hirata
- Applicant: Majung Park , Manabu Oumi , Masakazu Hirata
- Applicant Address: JP
- Assignee: Seiko Instruments Inc.
- Current Assignee: Seiko Instruments Inc.
- Current Assignee Address: JP
- Agency: Adams & Wilks
- Priority: JP2007-163572 20070621
- International Application: PCT/JP2008/060819 WO 20080613
- International Announcement: WO2008/156028 WO 20081224
- Main IPC: G11B11/00
- IPC: G11B11/00

Abstract:
A near-field optical head includes: a near-field light generating element, formed on a counter surface of a slider facing the surface of a magnetic recording medium and having two or more side surfaces each of which are in contact with the counter surface at a certain angle with the counter surface, for generating the near-field light; at least one lower wiring formed on at least one of the side surfaces of the near-field light generating element; a thin-film-like magnetic pole disposed to a position covering the lower wiring; at least one upper wiring disposed on one of the two sides of the magnetic pole, opposite to the side on which the lower wiring is disposed; at least one side surface wiring connecting the lower wiring and the upper wiring; insulating layers insulating each of the lower wiring, the magnetic pole, and the upper wiring from the others; and a coil wound around the magnetic pole by connecting the lower wiring and the upper wiring alternately and serially using the side surface wiring.
Public/Granted literature
- US20110122736A1 NEAR-FIELD OPTICAL HEAD AND INFORMATION RECORDING/REPRODUCING DEVICE Public/Granted day:2011-05-26
Information query
IPC分类: