Patents by Inventor Jun-Ya Kojima

Jun-Ya Kojima 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 material and novel color developer compounds
    Patent number: 6858565
    Abstract: Disclosed is a thermosensitive recording material comprising a sheet-shaped support and a thermosensitive recording layer which is formed on at least one surface of the support and comprises a colorless or light-colored dye precursor and a color developer capable of reacting with the dye precursor and inducing color formation therein upon application of heat thereto, the color developer comprising a compound represented by the following formula (I) or analog thereof: The thermosensitive recording material has high sensitivity and can prevent white background portions from coloring and recorded images from decolorizing in an environmental resistance test.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: February 22, 2005
    Assignee: Oji Paper Co., Ltd.
    Inventors: Hirotake Fujita, Jun-Ya Kojima, Ayako Shirai, Yoshiyuki Takahashi
  • Thermosensitive recording material and novel color developer compounds
    Publication number: 20030040434
    Abstract: Disclosed is a thermosensitive recording material comprising a sheet-shaped support and a thermosensitive recording layer which is formed on at least one surface of the support and comprises a colorless or light-colored dye precursor and a color developer capable of reacting with the dye precursor and inducing color formation therein upon application of heat thereto, the color developer comprising a compound represented by the following formula (I) or analog thereof: 1
    Type: Application
    Filed: May 13, 2002
    Publication date: February 27, 2003
    Inventors: Hirotake Fujita, Jun-Ya Kojima, Ayako Shirai, Yoshiyuki Takahashi