Patents by Inventor Keisuke KOKINN

Keisuke KOKINN 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).

  • Carboxylic acid ester/carbamate compound with polymerizable functional group and fluorine atom group, and manufacturing method therefor
    Patent number: 9604918
    Abstract: Provided are a fluorine-containing monomer soluble in a hydrocarbon-based solvent as well as excellent in water and oil repellence, and a manufacturing method therefor. The fluorine-containing monomer is a carboxylic acid ester/carbamate compound having a polymerizable functional group and a fluorine atom group, and represented by the following general formula: CaF2a+1O—(CbF2bO)c—C2F4COO—Z—(CONHR)d. The method for manufacturing the carboxylic acid ester/carbamate compound is comprised of the steps of making an isocyanate compound having a polymerizable functional group react with an alcohol such as a polyalkylene glycol, a cycloalkane dimethanol, or a polyhydric alcohol to produce a hydroxycarbamate, and subsequently making the resulting hydroxycarbamate react with a perfluoropolyether carboxylic acid halide.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: March 28, 2017
    Assignee: UNIMATEC CO., LTD.
    Inventors: Takuhiro Miyamura, Keisuke Kokinn, Sunao Ikeda
  • CARBOXYLIC ACID ESTER/CARBAMATE COMPOUND WITH POLYMERIZABLE FUNCTIONAL GROUP AND FLUORINE ATOM GROUP, AND MANUFACTURING METHOD THEREFOR
    Publication number: 20160185714
    Abstract: Provided are a fluorine-containing monomer soluble in a hydrocarbon-based solvent as well as excellent in water and oil repellence, and a manufacturing method therefor. The fluorine-containing monomer is a carboxylic acid ester/carbamate compound having a polymerizable functional group and a fluorine atom group, and represented by the following general formula: CaF2a+1O—(CbF2bO)c—C2F4COO—Z—(CONHR)d. The method for manufacturing the carboxylic acid ester/carbamate compound is comprised of the steps of making an isocyanate compound having a polymerizable functional group react with an alcohol such as a polyalkylene glycol, a cycloalkane dimethanol, or a polyhydric alcohol to produce a hydroxycarbamate, and subsequently making the resulting hydroxycarbamate react with a perfluoropolyether carboxylic acid halide.
    Type: Application
    Filed: March 20, 2015
    Publication date: June 30, 2016
    Inventors: Takuhiro MIYAMURA, Keisuke KOKINN, Sunao IKEDA