公开(公告)号：US20200316976A1

公开(公告)日：2020-10-08

申请号：US16305291

申请日：2017-05-30

申请人： Ichiro SAWAMURA ,  Yasuroh YOKOTA ,  Kazuyuki UETAKE ,  Yohji IDE ,  Satoshi ARAI ,  Toshiaki ASAI ,  Kazumasa NODA ,  Yuta OKABE

发明人： Ichiro SAWAMURA ,  Yasuroh YOKOTA ,  Kazuyuki UETAKE ,  Yohji IDE ,  Satoshi ARAI ,  Toshiaki ASAI ,  Kazumasa NODA ,  Yuta OKABE

IPC分类号： B41M5/44 ,  B41M5/36

摘要： A thermosensitive recording medium including a base and a recording layer including a photothermal conversion material and disposed on the base, wherein the thermosensitive recording medium is configured to record information in the thermosensitive recording medium through laser light irradiation, and wherein a color difference delta E between a color tone A of a background observed through the thermosensitive recording medium in which information is not recorded and a color tone B of the background directly observed without the thermosensitive recording medium in which information is not recorded is 20 or less, and a film thickness D of an area of the recording layer irradiated with laser light after information recording performed by laser light irradiation is 140% or greater but 250% or less relative to a film thickness C of the recording layer of the thermosensitive recording medium in which information is not recorded.

公开(公告)号：US20190152248A1

公开(公告)日：2019-05-23

申请号：US16313325

申请日：2017-06-26

申请人： Kazumasa NODA ,  Kenji SHIMIZU ,  Yasuhiro KADOTA

发明人： Kazumasa NODA ,  Kenji SHIMIZU ,  Yasuhiro KADOTA

IPC分类号： B41M5/333 ,  B41M5/155 ,  B41M5/327 ,  C07C317/22

摘要： Provided is a thermosensitive recording medium including a support, and a thermosensitive recording layer provided over at least one surface of the support and containing a leuco dye and a developer, wherein the developer includes 4-hydroxy-4′-benzyloxydiphenylsulfone and a diphenylsulfone compound represented by general formula (1), and wherein a content of the diphenylsulfone compound represented by general formula (1) is less than 3.0 parts by mass relative to 1.0 part by mass of the 4-hydroxy-4′-benzyloxydiphenylsulfone.