Patents by Inventor Isao Tokuno

Isao Tokuno 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: 5188395
    Abstract: The present invention provides a waterproof recording material having ground patterns characterized in that the ground patterns are imparted to the surface of a film of a resin composition comprising a thermoplastic synthetic resin and a filler. According to this invention, it is possible to provide a fine-looking recording material which, besides excellent waterproofness and recording property, may have various stages of surface properties and visual effects imparted by means of the ground patterns. The waterproof recording material having ground patterns of the present invention is suitable as a material of valuable securities and the like, facilitating true/false discrimination and preventing illegal use or abuse thereof by altering, falsification et cetera.
    Type: Grant
    Filed: December 19, 1989
    Date of Patent: February 23, 1993
    Assignee: Goyo Paper Working Co., Ltd.
    Inventors: Hiroshi Kawahara, Noriaki Okunaka, Mitsuru Kobayashi, Isao Tokuno, Shuzo Ohara
  • Patent number: 4784919
    Abstract: The present invention provides a transfer paper for imparting stereographic pattern produced by transferring the specified pattern printed on a synthetic sheet to a release layer surface of a release paper formed of a base member and the aforementioned release layer provided on the surface thereof and a manufacturing method of the transfer paper characterized in that a releasable thermoplastic resin is extruded between the base material and the sheet on which the specified pattern has been printed, thereby transferring the pattern on the aforementioned printed sheet to the surface of the aforementioned thermoplastic resin, followed by cooling, and then, said printed sheet is peeled off and separated from the surface of said thermoplastic resin. Thus this invention makes it possible to provide at low price and with ease a transfer paper for imparting stereographic perspective patterns having various grades of lusters and tones in combination.
    Type: Grant
    Filed: June 17, 1987
    Date of Patent: November 15, 1988
    Assignee: Goyo Paper Working, Ltd.
    Inventors: Isao Tokuno, Shuzo Ohara