Patents by Inventor Kazuyo Senga

Kazuyo Senga 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).

  • Forgery-preventing film
    Patent number: 7682687
    Abstract: Disclosed is a forgery-preventing film having a structure in which a thermoplastic resin film is attached to both faces of a light-shielding layer processed for forgery prevention. It is impossible to recognize the letter information to be protected in the forgery-preventing film without peeling the information-concealing layer therefrom.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: March 23, 2010
    Assignee: YUPO Corporation
    Inventors: Katsukuni Nitta, Kazuyo Senga
  • Forgery-preventing film
    Publication number: 20040188996
    Abstract: Disclosed is a forgery-preventing film having a structure in which a thermoplastic resin film is attached to both faces of a light-shielding layer processed for forgery prevention. It is impossible to recognize the letter information to be protected in the forgery-preventing film without peeling the information-concealing layer therefrom.
    Type: Application
    Filed: January 16, 2004
    Publication date: September 30, 2004
    Applicant: Yupo Corporation
    Inventors: Katsukuni Nitta, Kazuyo Senga
  • Sheet for illuminated signboard and illuminated signboard employing the same
    Patent number: 5800909
    Abstract: A sheet for an illuminated signboard is described which has as a base a composite sheet which is a plain weave fabric (I) having laminated on one or both sides thereof a microporous film (II) which is a stretched thermoplastic resin film containing fine white inorganic particles, where the sheet for an illuminated signboard satisfies the following requirements (1) to (4):(1) it has an opacity of from 80 to 100%;(2) it has a whiteness of from 85 to 100%;(3) it has a total light beam average reflectance of from 12 to 40%; and(4) it has a total light beam average transmittance of from 70 to 95%.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: September 1, 1998
    Assignee: Oji-Yuka Synthetic Paper Co., Ltd.
    Inventors: Katsukuni Nitta, Kazuyo Senga