Patents by Inventor Masafumi Kumoda

Masafumi Kumoda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • THERMOSENSITIVE RECORDING MEDIUM AND ARTICLE
    Publication number: 20200384789
    Abstract: Provided is a thermosensitive recording medium including: a transparent support; a thermosensitive recording layer provided over the transparent support; and a protective layer provided over the thermosensitive recording layer, wherein the protective layer contains an ultraviolet-ray-curable resin and a pigment other than silicone resin pigments, and wherein a maximum height Rz of a surface of the protective layer is 0.2 micrometers or greater but 1.0 micrometer or less.
    Type: Application
    Filed: March 9, 2018
    Publication date: December 10, 2020
    Inventors: Gaku KOHARA, Kenji SHIMIZU, Masafumi KUMODA, Marin SHIKIBU
  • Thermosensitive recording material
    Patent number: 8003568
    Abstract: Provided is a thermosensitive recording material that comprises a support, a thermosensitive coloring layer on the support, and a protective layer on the thermosensitive coloring layer, wherein the thermosensitive coloring layer comprises a leuco dye and a color developer, and the protective layer comprises a diacetone-modified polyvinyl alcohol resin and a (meth)acrylic resin.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: August 23, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiaki Matsunaga, Shinji Takano, Takeshi Kajikawa, Toshiaki Ikeda, Masafumi Kumoda
  • Thermosensitive recording material
    Publication number: 20080280757
    Abstract: Provided is a thermosensitive recording material that comprises a support, a thermosensitive coloring layer on the support, and a protective layer on the thermosensitive coloring layer, wherein the thermosensitive coloring layer comprises a leuco dye and a color developer, and the protective layer comprises a diacetone-modified polyvinyl alcohol resin and a (meth)acrylic resin.
    Type: Application
    Filed: September 12, 2007
    Publication date: November 13, 2008
    Inventors: Yoshiaki Matsunaga, Shinji Takano, Takeshi Kajikawa, Toshiaki Ikeda, Masafumi Kumoda