Patents by Inventor Yutaka Enokida

Yutaka Enokida 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).

  • Polymer comprising fluoroalkyl group, a method of preparation thereof, a surface active agent, a surface treatment agent and a coating composition
    Patent number: 5414065
    Abstract: A polymer comprising fluoroalkyl group has a structure in which one or two parts of the fluoroalkyl group at the one or both ends of the molecule are linked to a part of alkylene groups or alkylene groups substituted with halogen, a part of alkylene group substituted with functional groups, such as halogen, cyano group, alkylsulfonic acid group, amidoalkylsulfonic acid group, carboxylic acid group, carboxyl group, oxycarbonyl group, ether group, epoxy group and the like, and/or a part of silicone group. A method of preparation of the polymer comprising fluoroalkyl group contains reaction of a fluoroalkanoyl peroxide with a monomer comprising the functional group or a monomer comprising silicone group. A surface active agent comprises fluoroalkyl group and caroxylic acid salt group. A surface treatment agent comprises the polymer comprising fluoroalkyl group, hydrolysis products thereof, hydrolytic condensation products thereof, and mixtures thereof.
    Type: Grant
    Filed: June 21, 1994
    Date of Patent: May 9, 1995
    Assignee: NOF Corporation
    Inventors: Hideo Sawada, Keiji Komoto, Masahiro Sano, Yutaka Enokida, Mitani Motohiro, Takeo Matsumoto, Masaharu Nakayama, Masato Okajima
  • Polymer comprising fluoroalkl group, a method of preparation thereof, a surface active agent, a surface treatment agent and a coating composition
    Patent number: 5324803
    Abstract: A polymer comprising fluoroalkyl group has a structure in which one or two parts of the fluoroalkyl group at the one or both ends of the molecule are linked to a part of alkylene groups or alkylene groups substituted with halogen, a part of alkylene group substituted with functional groups, such as halogen, cyano group, alkylsulfonic acid group, amidoalkylsulfonic acid group, carboxylic acid group, carboxyl group, oxycarbonyl group, ether group, epoxy group and the like, and/or a part of silicone group. A method of preparation of the polymer comprising fluoroalkyl group contains reaction of a fluoroalkanoyl peroxide with a monomer comprising the functional group or a monomer comprising silicone group. A surface active agent comprises fluoroalkyl group and caroxylic acid salt group. A surface treatment agent comprises the polymer comprising fluoroalkyl group, hydrolysis products thereof, hydrolytic condensation products thereof, and mixtures thereof.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: June 28, 1994
    Assignee: NOF Corporation
    Inventors: Hideo Sawada, Keiji Komoto, Masahiro Sano, Yutaka Enokida, Motohiro Mitani, Takeo Matsumoto, Masaharu Nakayama, Masato Okajima