Invention Grant
- Patent Title: Recording head, method of manufacturing recording head, and information recording and playback apparatus
- Patent Title (中): 记录头，制造记录头的方法和信息记录和重放装置
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Application No.: US13373177Application Date: 2011-11-07
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Publication No.: US08379502B2Publication Date: 2013-02-19
- Inventor: Masakazu Hirata , Norio Chiba , Manabu Oumi , Yoko Shinohara , Sachiko Tanabe , Yoshikazu Tanaka
- Applicant: Masakazu Hirata , Norio Chiba , Manabu Oumi , Yoko Shinohara , Sachiko Tanabe , Yoshikazu Tanaka
- Applicant Address: JP
- Assignee: Seiko Instruments Inc.
- Current Assignee: Seiko Instruments Inc.
- Current Assignee Address: JP
- Agency: Adams & Wilks
- Priority: JP2010-249964 20101108
- Main IPC: G11B7/00
- IPC: G11B7/00 ; G11B5/02
Abstract:
A near-field light generating element has a core that guides a laser light in a direction of a disk while reflecting the laser light, and a cladding that encapsulates the core in an inner portion, and lengths of a longitudinal direction and a transverse direction of an incident side end surface of the laser light in the core are formed so as to match the lengths of a long axis direction and a short axis direction of the laser light that is entered to the core.
Public/Granted literature
- US20120113769A1 Recording head, method of manufacturing recording head, and information recording and playback apparatus Public/Granted day:2012-05-10
Information query
IPC分类:
