Patents by Inventor Chieko OSHISAKA

Chieko OSHISAKA 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).

  • Heat-sensitive recording medium displaying gold metal tone, and/or heat-sensitive recording medium displaying two different color tones
    Patent number: 9751352
    Abstract: A main purpose of the present invention is to provide a heat-sensitive recording medium that utilizes a chromogenic reaction between a dye precursor and a developer, wherein a colored image is tinged with a metallic luster so as to exhibit a gold metal color tone with a vivid appearance, or to provide a heat-sensitive recording medium exhibiting a yellow or gold metal color tone and a color tone different from the yellow or gold metal color tone, wherein the color optical density in each of the color tones is high, and a recording part has excellent color separation properties.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: September 5, 2017
    Assignee: OJI HOLDINGS CORPORATION
    Inventors: Yoshihiko Yoneda, Chieko Oshisaka, Takashi Takemura, Tohru Murai
  • HEAT-SENSITIVE RECORDING MEDIUM DISPLAYING GOLD METAL TONE, AND/OR HEAT-SENSITIVE RECORDING MEDIUM DISPLAYING TWO DIFFERENT COLOR TONES
    Publication number: 20160059604
    Abstract: A main purpose of the present invention is to provide a heat-sensitive recording medium that utilizes a chromogenic reaction between a dye precursor and a developer, wherein a colored image is tinged with a metallic luster so as to exhibit a gold metal color tone with a vivid appearance, or to provide a heat-sensitive recording medium exhibiting a yellow or gold metal color tone and a color tone different from the yellow or gold metal color tone, wherein the color optical density in each of the color tones is high, and a recording part has excellent color separation properties.
    Type: Application
    Filed: May 1, 2014
    Publication date: March 3, 2016
    Applicant: OJI HOLDINGS CORPORATION
    Inventors: Yoshihiko YONEDA, Chieko OSHISAKA, Takashi TAKEMURA, Tohru MURAI