Title:
記録ヘッド、記録ヘッド製作方法および情報記録装置
Document Type and Number:
Japanese Patent JP4220153
Kind Code:
B2
Abstract:
The present invention relates to a recording head for recording information based on an optical magnetic recording system, and has an object of carrying out a high-density recording by reducing the beam diameter of an optical beam irradiated to a recording medium. When an optical beam having a larger diameter than that of the recording head is irradiated, this optical beam is condensed in a light guiding layer. The optical beam is further condensed with a sharp-headed chip. The condensed optical beam is emitted from an emission aperture smaller than the wavelength of the light at the front end of the chip, and irradiated to the recording medium.
Inventors:
Shinya Hasegawa
Wataru Odashima
Fumihiro Tawa
Nobuhide Aoyama
Wataru Odashima
Fumihiro Tawa
Nobuhide Aoyama
Application Number:
JP2001500265A
Publication Date:
February 04, 2009
Filing Date:
May 31, 1999
Export Citation:
Assignee:
富士通株式会社
International Classes:
G11B11/105; G11B7/135; G11B7/1353; G11B7/22
Domestic Patent References:
| JP11120641A | ||||
| JP11120644A | ||||
| JP117657A | ||||
| JP8167193A | ||||
| JP7311992A | ||||
| JP5128626A | ||||
| JP554456A | ||||
| JP512739A |
Attorney, Agent or Firm:
Masaki Yamada
Mikami Yui
Mikami Yui