Patents by Inventor Yoshimasa Nakagawa

Yoshimasa Nakagawa 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).

  • Cured unsaturated polyester resin or vinyl ester resin containing fluorine-containing groups oriented on its surface
    Patent number: 4708982
    Abstract: A cured unsaturated polyester resin or vinyl ester resin having excellent water resistance, weather resistance, stain resistance and anti-block property can be obtained by curing an unsaturated polyester resin or vinyl ester resin together with a fluorine-containing block copolymer consisting of a polymer portion having fluorine-containing groups and a polymer portion compatible with the unsaturated polyester resin or vinyl ester resin.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: November 24, 1987
    Assignee: Nippon Oil and Fats Co., Ltd.
    Inventors: Shigeki Banno, Yoshihiro Oshibe, Yoshimasa Nakagawa
  • Head and face protecting hood
    Patent number: 4231118
    Abstract: This invention is directed to a head and face protecting hood which includes a cover body having front and rear walls each being having an outer layer of a laminate of non-flammable polyvinyl chloride sheet and non-flammable fiber sheet and an inner layer of adiabatic non-woven fiber sheet which is adhered to only the edges of the outer layer of each of the front and rear walls so as to cover a whole head and face. An eye facing body is provided which is adhered to the front wall of the cover body and is made of a non-flammable transparent polyvinyl chloride layer. A mouthpiece facing the front wall of body may be also provided which is mounted on the front wall of the cover body and has a front composite layer, a rear composite layer and a poison absorption agent covered with an adiabatic fiber layer disposed therebetween.
    Type: Grant
    Filed: April 10, 1979
    Date of Patent: November 4, 1980
    Inventor: Yoshimasa Nakagawa
  • Process for curing unsaturated resins
    Patent number: 4042646
    Abstract: A process for curing unsaturated polyester resins in a very short time at a low temperature using .beta.-amino-.alpha., .beta.-unsaturated ketone and peroxide containing hydroperoxy group without the presence of metallic salt.The product thus obtained is not colored.
    Type: Grant
    Filed: August 27, 1975
    Date of Patent: August 16, 1977
    Assignee: Nihon Yushi Co., Ltd.
    Inventors: Koji Edamura, Yoshimasa Nakagawa, Yoshitaka Ikeda