公开(公告)号：US20200230992A1

公开(公告)日：2020-07-23

申请号：US16624127

申请日：2018-05-11

Applicant: Sony Corporation

Inventor： Isao TAKAHASHI ,  Satoko ASAOKA ,  Taichi TAKEUCHI ,  Asuka TEJIMA ,  Kentaro KURIYAMA ,  Mitsunari HOSHI

IPC: B41M7/00 ,  B41M5/30 ,  B41M5/34

Abstract: An erasing unit according to an embodiment of the present disclosure is a unit that performs erasing of information written on a reversible recording medium. This erasing unit includes: a light source section including one or a plurality of laser devices; and a controller that controls the light source section to cause the light source section to emit a smaller number of laser light beams having emission wavelengths than the number of the recording layers included in the reversible recording medium.

公开(公告)号：US20210187965A1

公开(公告)日：2021-06-24

申请号：US17252496

申请日：2019-06-06

Applicant: Sony Corporation

Inventor： Isao TAKAHASHI ,  Nobukazu HIRAI ,  Satoko ASAOKA ,  Mitsunari HOSHI ,  Taichi TAKEUCHI ,  Eikichi SHIBATA

IPC: B41J2/475 ,  B41J2/44 ,  B41M5/34

Abstract: A drawing and erasing apparatus includes a light source section that includes a plurality of laser elements different from each other in emission wavelength, a multiplexer that multiplexes a plurality of types of laser light beams outputted from the plurality of laser elements, a scanner section that performs scanning with multiplexed light outputted from the multiplexer on a reversible recording medium including a plurality of recording layers, the plurality of recording layers being reversible and different from each other in developed color hue, and a controller that controls a main scanning speed and a sub-scanning speed of the scanner section to cause the scanner section to perform overlapping scanning of a predetermined region on the reversible recording medium during erasure of information written on the reversible recording medium.

公开(公告)号：US20190240993A1

公开(公告)日：2019-08-08

申请号：US16340011

申请日：2017-09-13

Applicant: Sony Corporation

Inventor： Yusuke KAJIO ,  Isao TAKAHASHI ,  Yuki OISHI ,  Masaru WADA ,  Kenichi KURIHARA ,  Taichi TAKEUCHI ,  Satoko ASAOKA ,  Asuka TEJIMA ,  Nobukazu HIRAI ,  Yuriko KAINO ,  Aya SHUTO

IPC: B41J2/475 ,  B41J5/32 ,  B41M5/28 ,  G06F3/12

CPC classification number: B41J2/475 ,  B41J5/30 ,  B41J5/32 ,  B41J29/38 ,  B41M5/28 ,  G06F3/12 ,  G06F3/1206 ,  G06F3/1243 ,  G06F3/1285 ,  G06F3/1286

Abstract: A recording device according to the present disclosure includes: a writer that rewrites schedule information visibly recorded on a recording medium and corresponding to a time from first schedule information to second schedule information; and a generator that generates the second schedule information on the basis of a time.

公开(公告)号：US20210151080A1

公开(公告)日：2021-05-20

申请号：US17162409

申请日：2021-01-29

Applicant: Sony Corporation

Inventor： Isao TAKAHASHI ,  Satoko ASAOKA ,  Taichi TAKEUCHI ,  Asuka TEJIMA ,  Kentaro KURIYAMA ,  Mitsunari HOSHI

IPC: G11B7/256 ,  B41M5/42

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.

公开(公告)号：US20200152232A1

公开(公告)日：2020-05-14

申请号：US16623904

申请日：2018-05-11

Applicant: Sony Corporation

Inventor： Isao TAKAHASHI ,  Satoko ASAOKA ,  Taichi TAKEUCHI ,  Asuka TEJIMA ,  Kentaro KURIYAMA ,  Mitsunari HOSHI

IPC: G11B7/256 ,  B41M5/42

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.