Patents by Inventor Kiyoshi Senzaki

Kiyoshi Senzaki 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).

  • Thermal transfer sheet comprising an improved ink layer
    Patent number: 4946826
    Abstract: A thermal transfer sheet is provided which comprises a support and an ink layer formed on one side of the support. The ink layer is made of a composition of a sublimable dye and a resin binder comprised of not less than 15 parts by weight of an epoxy resin and not less than 30 parts by weight of a butyral resin. The resin binder is effective in suppressing soiling on a sheet to be transferred as will be caused by the dye additionally deposited on the background of the thermal transfer sheet during the thermal printing procedure.
    Type: Grant
    Filed: July 18, 1989
    Date of Patent: August 7, 1990
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Naoyuki Kubo, Kiyoshi Senzaki, Yuji Kikuchi, Tsutomu Yashiro