The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 2026
Filed:
Dec. 18, 2024
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Kaori Kimura, Yokohama Kanagawa, JP;
Takao Furuhashi, Kawasaki Kanagawa, JP;
Masaya Suzuki, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Toshiba Electronic Devices & Storage Corporation, Kawasaki, JP;
Abstract
According to an embodiment, a control method for a heat-assisted magnetic recording and reproducing device including a heat-assisted magnetic recording head including a main pole, a near-field transducer generating near-field light, a waveguide propagating light to the near-field transducer, and a laser light source supplying light to the waveguide, and a heat-assisted magnetic recording medium that has a lubricant layer on a recording surface opposing the head, includes irradiating the near-field light on the medium with a second laser current value set lower than a first laser current value at a time of write, and operating the head, thereby performing a smoothing process on the surface of the lubricant layer.