Patent · US Active

Apparatuses and methods for absorbing optical energy

US9734856B2 · kind B2 · utility

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19Claims
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Assignee

Inventors

Key dates

Filing dateJun 30, 2016
Grant dateAug 15, 2017
Priority date
Expiry dateJun 30, 2036

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B2005/0021
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

Provided herein is an apparatus including a substrate and a magnetic recording layer over the substrate. In addition, a thermochromic layer is over the substrate, wherein the thermochromic layer includes a first optical absorbance at a first temperature and a second optical absorbance at a second temperature.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.