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:
May. 13, 2025
Filed:
Aug. 01, 2023
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Yuji Nakagawa, Kawasaki Kanagawa, JP;
Masayuki Takagishi, Tokyo, JP;
Naoyuki Narita, Funabashi Chiba, JP;
Tomoyuki Maeda, Kawasaki Kanagawa, JP;
Ryo Osamura, Kawasaki Kanagawa, JP;
Tazumi Nagasawa, Yokohama Kanagawa, JP;
Kosuke Kurihara, Yokohama Kanagawa, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION, Tokyo, JP;
Abstract
According to one embodiment, a magnetic head includes a first magnetic pole, a second magnetic pole, and a magnetic element provided between the first and the second magnetic poles. The magnetic element includes first to fifth magnetic layers. A differential electric resistance of the magnetic element when a voltage between the first magnetic pole and the second magnetic pole being changed includes a first positive peak and a second positive peak. The voltage corresponding to the first positive peak is a first positive peak voltage. The voltage corresponding to the second positive peak is a second positive peak voltage. The second positive peak voltage is higher than the first positive peak voltage. An element voltage applied between the first magnetic pole and the second magnetic pole in a recording operation is higher than the second positive peak voltage.