Patents by Inventor Tsuneto Yoshizumi

Tsuneto Yoshizumi 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).

  • Patent number: 4400706
    Abstract: A discharge recording medium having a colored insulating layer, a metal-vaporized layer and, as required, a protection layer formed in that order on a support member, wherein the colored insulating layer contains a graphite powder having particles of a specifically determined average size in an amount according to a specifically determined ratio with respect to a bonding resin in the colored insulating layer.
    Type: Grant
    Filed: July 28, 1981
    Date of Patent: August 23, 1983
    Assignee: Honshu Seishi Kabushiki Kaisha
    Inventors: Shuji Takemura, Kazumi Hirakawa, Tsuneto Yoshizumi