Patents by Inventor Toyoji Tomita

Toyoji Tomita 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).

  • Aqueous dispersed resin composition
    Patent number: 5472996
    Abstract: An aqueous dispersed resin composition comprising (A) an aqueous dispersion of carbonyl-containing resin particles having an inner layer and an outermost layer, which is obtained by emulsion polymerization of a monomer mixture comprising (a) not less than 0.5% by weight of a carbonyl-containing monomer containing at least one aldo group or keto group and one polymerizable unsaturated double bond in the molecule thereof, (b) not less than 0.5% by weight of an ethylenically unsaturated carboxylic acid, (c) not more than 99% by weight of a monomer having a water-solubility of not more than 8 g/100 ml at 20.degree. C.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: December 5, 1995
    Assignee: Mitsubishi Yuka Badische Co., Ltd.
    Inventors: Ryutaro Hayashi, Masahiro Aoki, Toyoji Tomita, Yoshinori Kato, Takeo Tsukamoto, Takeshi Awata
  • Aqueous dispersed resin composition
    Patent number: 5447970
    Abstract: An aqueous dispersed resin composition is disclosed, comprising (A) an aqueous dispersion of carbonyl-containing resin particles having an inner layer and an outermost layer, which is obtained by emulsion polymerization of a monomer mixture comprising (a) not less than 0.5% by weight of a carbonyl-containing monomer containing at least one aldo group or keto group and one polymerizable unsaturated double bond in the molecule thereof, (b) not less than 0.5% by weight of an ethylenically unsaturated carboxylic acid, (c) not more than 99% by weight of a monomer having a water-solubility of not more than 8 g/100 ml at 20.degree. C.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: September 5, 1995
    Assignee: Mitsubishi Yuka Badische Co., Ltd.
    Inventors: Toyoji Tomita, Masahiro Aoki, Takeo Tsukamoto, Takeshi Awata, Ryutaro Hayashi