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:
Oct. 19, 2021
Filed:
Aug. 20, 2019
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventor:
Richard Bradshaw, Tucson, AZ (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/714 (2006.01); G11B 5/712 (2006.01); G11B 5/848 (2006.01); G11B 5/733 (2006.01); G11B 5/716 (2006.01); G11B 5/702 (2006.01); G11B 5/706 (2006.01);
U.S. Cl.
CPC ...
G11B 5/848 (2013.01); G11B 5/7023 (2013.01); G11B 5/70636 (2013.01); G11B 5/70647 (2013.01); G11B 5/712 (2013.01); G11B 5/714 (2013.01); G11B 5/716 (2013.01); G11B 5/733 (2013.01);
Abstract
A product, according to one approach, includes an underlayer and a magnetic recording layer formed above the underlayer. The underlayer includes first encapsulated nanoparticles each comprising a first magnetic nanoparticle encapsulated by a first aromatic polymer, and a first polymeric binder binding the first encapsulated nanoparticles. The recording layer includes second encapsulated nanoparticles each comprising a second magnetic nanoparticle encapsulated by an encapsulating layer, and a second polymeric binder binding the second encapsulated nanoparticles.