Title:
MAGNETIC FIELD GENERATOR AND MAGNETO-OPTICAL INFORMATION STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2004/061837
Kind Code:
A1
Abstract:
A magnetic field generator which is manufactured by a simple manufacturing technique such as plating and in which an eddy current is suppressed, and a magneto-optical information storage device capable of the high-speed recording/reproduction of data. An annular coil (311) surrounds an inner hole. A plurality of magnetic rods (312) insulated from the coil (311) and made of a magnetic material are radially arranged with the inner hole of the coil (311) at the center so as to be placed on the coil (311). The rods (312) have a maximum width and a minimum width, and the ratio between them is two or less.
Inventors:
YOSHIKAWA HIROYASU (JP)
Application Number:
PCT/JP2002/013704
Publication Date:
July 22, 2004
Filing Date:
December 26, 2002
Export Citation:
Assignee:
FUJITSU LTD (JP)
YOSHIKAWA HIROYASU (JP)
YOSHIKAWA HIROYASU (JP)
International Classes:
G11B11/105; G11B13/04; H01F7/20; H01F3/10; (IPC1-7): G11B11/105
Foreign References:
| JP2000036141A | 2000-02-02 | |||
| JP2002230860A | 2002-08-16 | |||
| JP2000090403A | 2000-03-31 | |||
| JPH05225501A | 1993-09-03 | |||
| JPH076443A | 1995-01-10 |
Other References:
See also references of EP 1528550A4
Attorney, Agent or Firm:
Yamada, Masaki (Pelican Building 4th Floor 3-3,
Nishi-shimbashi 3-chom, Minato-ku Tokyo, JP)
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