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.

Date of Patent:
Jun. 21, 2022

Filed:

Jan. 29, 2021
Applicant:

Sony Corporation, Tokyo, JP;

Inventors:

Isao Takahashi, Kanagawa, JP;

Satoko Asaoka, Kanagawa, JP;

Taichi Takeuchi, Kanagawa, JP;

Asuka Tejima, Kanagawa, JP;

Kentaro Kuriyama, Kanagawa, JP;

Mitsunari Hoshi, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/256 (2006.01); B41M 5/42 (2006.01);
U.S. Cl.
CPC ...
G11B 7/256 (2013.01); B41M 5/42 (2013.01); B41M 2205/04 (2013.01); B41M 2205/38 (2013.01); B41M 2205/40 (2013.01);
Abstract

A reversible recording medium according to an embodiment of the present disclosure is a reversible recording medium that includes recording layers and heat-insulating layers that are alternately stacked, in which the recording layers each include a reversible heat-sensitive color developing composition and a first light-heat converting agent. In this reversible recording medium, the recording layers are different from each other in a developing color of their respective reversible heat-sensitive color developing compositions and are different from each other in an absorption wavelength of their respective first light-heat converting agents. This reversible recording medium further includes a heat-generating layer that includes a second light-heat converting agent having an absorption wavelength that is different from the absorption wavelength of the first light-heat converting agent included in each of the recording layers.


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