Patents by Inventor Seiko Matsumoto

Seiko Matsumoto 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).

  • Liquid recording material
    Patent number: 4395287
    Abstract: A liquid recording material comprises a recording agent for forming a recording image and a liquid vehicle for dissolving or dispersing said recording agent therein and is characterized in that a polyalkylene glycol having an average molecular weight of 150 to 350 (A component) and a polyalkylene glycol having an average molecular weight of 400 to 750 (B component) are incorporated in combination in said material.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: July 26, 1983
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masatsune Kobayashi, Seiko Matsumoto, Masahiro Haruta, Tokuya Ohta