Patents by Inventor Hiroyoshi Kataoka

Hiroyoshi Kataoka 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).

  • Composition containing dispersed pigment and preparation method thereof
    Patent number: 4735984
    Abstract: A composition containing dispersed pigment comprises, as a dispersing agent, a reaction product of at least one polyamine having two or more primary amino groups and/or secondary amino groups and at least one polyisocyanate having two or more isocyanate groups.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: April 5, 1988
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Harunori Gouji, Hisao Kato, Hiroyoshi Kataoka
  • Process for producing polymeric resin
    Patent number: 4659795
    Abstract: A process for producing a polymeric resin suitable for the use as a solution or powder paint, which comprises polymerizing a blocked isocyanate group-containing ethylenically unsaturated polymerizable compound with an active hydrogen atom-containing ethylenically unsaturated polymerizable compound.
    Type: Grant
    Filed: May 13, 1983
    Date of Patent: April 21, 1987
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Koichi Tsutsui, Yoshio Eguchi, Hiroyoshi Kataoka
  • Resinous particles for coating composition and its production
    Patent number: 4365043
    Abstract: A process for preparing resinous particles for a coating composition, which comprises the steps of (1) subjecting an aqueous resin composition having an ionic group and no material solubility or dispersibility in water is dissolved or dispersed in an aqueous medium by at least partly neutralizing the ionic group to treatment with a powdering agent while applying thereto an operation for pulverization to deposit the resin in a particulate form and (2) recovering the deposited resinous particles from the aqueous medium.
    Type: Grant
    Filed: March 14, 1977
    Date of Patent: December 21, 1982
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Sakuichi Konishi, Yukio Omori, Hiroyoshi Kataoka
  • Process for preparation of solid pigment resin dispersion
    Patent number: 4234466
    Abstract: A process for preparing a solid pigment dispersed composition which comprises subjecting a liquid composition comprising at least one ethylenically unsaturated polymerizable compound, at least one resin dissolved or dispersed therein and at least one pigment dispersed therein to suspension or bulk polymerization, if necessary, with previous color matching.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: November 18, 1980
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Mitsuru Takahashi, Yukio Omori, Shuji Ikeda, Hiroyoshi Kataoka