| US 7,372,648 B2 | ||
| Optically-assisted magnetic recording head and optically-assisted magnetic recording apparatus | ||
| Junichi Akiyama, Kanagawa-ken (Japan); Akira Kikitsu, Kanagawa-ken (Japan); Tadashi Kai, Kanagawa-ken (Japan); Toshihiko Nagase, Kanagawa-ken (Japan); and Tomoyuki Maeda, Kanagawa-ken (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan) | ||
| Filed on Aug. 18, 2004, as Appl. No. 10/920,182. | ||
| Application 10/920182 is a continuation of application No. 10/108503, filed on Mar. 29, 2002, granted, now 6,795,380. | ||
| Claims priority of application No. 2001-095518 (JP), filed on Mar. 29, 2001. | ||
| Prior Publication US 2005/0018547 A1, Jan. 27, 2005 | ||
| Int. Cl. G11B 11/00 (2006.01) | ||
| U.S. Cl. 360—13.33 | 8 Claims |
| 1. A method for recording on a magnetic recording medium, comprising:
applying a magneto-motive force to a pair of magnetic yokes of a magnetic recording head to produce a recording magnetic field
across a gap between the pair of magnetic yokes;
irradiating a light onto one side of the gap of the magnetic recording head and generating an evanescent light on another
side of the gap;
heating the magnetic recording medium by irradiation of the evanescent light; and
recording information on the recording medium by the recording magnetic field,
wherein the irradiated light has a wavelength longer than a distance between the yokes at the gap,
at least one of the yokes has a narrow projecting portion, and the gap is formed between the distal end of the projecting
portion of the one of the yokes and another one of the yokes, and
the projecting portion has a width shorter than a wavelength of the irradiated light.
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