US 12,456,488 B2
Heat assisted magnetic recording and reproducing device and adjustment method of the same
Takao Furuhashi, Kawasaki Kanagawa (JP); and Kaori Kimura, Yokohama Kanagawa (JP)
Assigned to Kabushiki Kaisha Toshiba, Kawasaki (JP); and Toshiba Electronic Devices & Storage Corporation, Kawasaki (JP)
Filed by Kabushiki Kaisha Toshiba, Tokyo (JP); and Toshiba Electronic Devices & Storage Corporation, Tokyo (JP)
Filed on Oct. 22, 2024, as Appl. No. 18/922,977.
Claims priority of application No. 2024-078571 (JP), filed on May 14, 2024.
Prior Publication US 2025/0046338 A1, Feb. 6, 2025
Int. Cl. G11B 5/60 (2006.01); G11B 5/41 (2006.01); G11B 5/596 (2006.01); G11B 5/00 (2006.01)
CPC G11B 5/59627 (2013.01) [G11B 2005/0021 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method of adjusting a heat assisted magnetic recording and reproducing device incorporating a heat assisted magnetic recording head which comprises a main pole, a near-field transducer generating near-field light, a waveguide transmitting light to the near-field transducer, and a light source supplying light to the waveguide, and a heat assisted magnetic recording medium which comprises a lubricant layer on a recording surface facing the heat assisted magnetic recording head, the method comprising:
maintaining the heat assisted magnetic recording head in an on-track state; and
maintaining a recording current for data recording below a threshold value, for the heat assisted magnetic recording head, applying a light source drive current for emitting light to the light source, and generating a lubricant-cured material at a distal end of the near-field transducer.