发明授权
- 专利标题: Near-field optical head and information recording/reproducing device
- 专利标题(中): 近场光头和信息记录/再现装置
-
申请号: US12452098申请日: 2008-06-13
-
公开(公告)号: US08351304B2公开(公告)日: 2013-01-08
- 发明人: Majung Park , Manabu Oumi , Masakazu Hirata
- 申请人: Majung Park , Manabu Oumi , Masakazu Hirata
- 申请人地址: JP
- 专利权人: Seiko Instruments Inc.
- 当前专利权人: Seiko Instruments Inc.
- 当前专利权人地址: JP
- 代理机构: Adams & Wilks
- 优先权: JP2007-163572 20070621
- 国际申请: PCT/JP2008/060819 WO 20080613
- 国际公布: WO2008/156028 WO 20081224
- 主分类号: G11B11/00
- IPC分类号: G11B11/00
摘要:
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.
公开/授权文献
信息查询
IPC分类: