Patents by Inventor Toshimasa Ogura

Toshimasa Ogura 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).

  • Coated paper of improved printability
    Patent number: 4370389
    Abstract: A coated paper having a high paper gloss and a surface strength sufficient enough for practical purposes is obtained by coating a base paper sheet with an aqueous coating composition comprising a paper-coating pigment and a latex of styrene-butadiene copolymer or modified styrene-butadiene copolymer, the styrene block of which includes 8 to 40 monomeric units, drying the wet coated sheet, and subjecting the coated side to hot calendering treatment.
    Type: Grant
    Filed: April 10, 1981
    Date of Patent: January 25, 1983
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Toshimasa Ogura, Yasunosuke Sakai
  • Process for producing high-gloss coated paper
    Patent number: 4317849
    Abstract: A high-gloss coated paper can be produced by coating a paper or a prime-coated paper with an aqueous coating solution comprising a synthetic polymer latex (A) having a glass transition temperature of at least 38.degree. C. and a synthetic polymer latex (B) having a glass transition temperature of 5.degree. to 25.degree. C. in a weight ratio of 1:0.1 to 1:1 in terms of solid content, drying the coated paper, and then bringing the coated surface into contact with a hot calender under pressure at a temperature not lower than the glass transition temperature of the synthetic polymer latex (A), thereby forming a mirror-finishing on the surface of the coated paper.
    Type: Grant
    Filed: October 31, 1980
    Date of Patent: March 2, 1982
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Toshimasa Ogura, Masafumi Masuda