Patents by Inventor Toshiharu Sagara

Toshiharu Sagara 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).

  • Method and apparatus for producing glossy printed matter
    Patent number: 5368891
    Abstract: Disclosed is a method and an apparatus for efficiently and economically producing printed matter having a high degree of gloss, rub-resistance, water-resistance and resistance to contamination. In this method and apparatus, a web-fed printed matter or a web-fed printing paper is coated with a coating agent for roll press working and subjected to hot roll press working while in the state of a web.
    Type: Grant
    Filed: July 7, 1993
    Date of Patent: November 29, 1994
    Assignee: Sakata Inkusu Kabushikikaisha
    Inventors: Toshiharu Sagara, Toshikatsu Funahara, Takakazu Nakatani, Mitsuru Kojima
  • Aqueous overcoating composition and use of the same in printing method
    Patent number: 4808443
    Abstract: An aqueous overcoating composition which is able to adhere strongly to an oil-based ink printed on a sheet, enhances the film properties of the oil-based ink as to, for example, gloss, rub resistance and the like, prevents offset and blocking occurring at the time of stacking and the like after printing, and strikingly improves setting and drying of the oil-based ink so that it is possible to start the ensuing work of the after-treatments of printed matter. The composition is coated in a thin film on a wet sheet surface just printed with an oil-based ink, on a printing press or in a printing operation.
    Type: Grant
    Filed: July 24, 1987
    Date of Patent: February 28, 1989
    Assignee: Sakata Shokai, Ltd.
    Inventors: Masaya Minamoto, Mitsuru Kojima, Toshiharu Sagara, Yorio Takeda