Patents by Inventor Saburo Nishimatsu

Saburo Nishimatsu 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 paper
    Patent number: 4286017
    Abstract: Disclosed is a heat-sensitive recording paper comprising a colorless or pale-colored chromogenic substance and a phenolic substance for coloring the chromogenic substance by heating, in which amorphous synthetic aluminum silicate and/or amorphous synthetic magnesium silicate is incorporated in a recording layer.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: August 25, 1981
    Assignee: Honshu Seishi Kabushiki Kaisha
    Inventors: Masato Nakamura, Saburo Nishimatsu, Toshitake Itoh, Katsumi Moronuki