Patents by Inventor Yuuko Takano

Yuuko Takano 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).

  • Ethylene/tetrafluoroethylene copolymer
    Patent number: 11905349
    Abstract: An ethylene/tetrafluoroethylene copolymer satisfying the following formula (1): 75? tan ?(60)/tan ?(5)×100?225??(1) wherein peak intensities, determined by Fourier transform infrared spectroscopy, of vibrations derived from a —CF2H group, a —CF2CH2COF group, a —COF group, a —COOH group, a dimer of a —CF2COOH group and a monomer of a CF2CH2COOH group, a —COOCH3 group, a —CONH2 group, and a —CH2OH group satisfy the following formula (2): PIA/(PIB+PIC+PID+PIE+PIF+PIG+PIH)?0.60??(2) wherein the loss tangents (tan ?) and peak intensities (PI) are as defined herein.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: February 20, 2024
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Ryouichi Yano, Tatsuya Funaoka, Takahiro Kitahara, Takashi Sekiguchi, Kazunobu Uchida, Yuuko Takano
  • ETHYLENE/TETRAFLUOROETHYLENE COPOLYMER
    Publication number: 20230069795
    Abstract: An ethylene/tetrafluoroethylene copolymer satisfying the following formula (1): 75?tan ?(60)/tan ?(5)×100?225??(1) wherein peak intensities, determined by Fourier transform infrared spectroscopy, of vibrations derived from a —CF2H group, a —CF2CH2COF group, a —COF group, a —COOH group, a dimer of a —CF2COOH group and a monomer of a CF2CH2COOH group, a —COOCH3 group, a —CONH2 group, and a —CH2OH group satisfy the following formula (2): PIA/(PIB+PIC+PID+PIE+PIF+PIG+PIH)?0.60??(2) wherein the loss tangents (tan?) and peak intensities (PI) are as defined herein.
    Type: Application
    Filed: October 31, 2022
    Publication date: March 2, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Ryouichi YANO, Tatsuya FUNAOKA, Takahiro KITAHARA, Takashi SEKIGUCHI, Kazunobu UCHIDA, Yuuko TAKANO
  • Ethylene/tetrafluoroethylene copolymer
    Patent number: 11548960
    Abstract: An ethylene/tetrafluoroethylene copolymer satisfying the following formula (1), wherein peak intensities, determined by Fourier transform infrared spectroscopy, of vibrations derived from a —CF2H group, a —CF2CH2COF group, a —COF group, a —COOH group, a dimer of a —CF2COOH group and a monomer of a CF2CH2COOH group, a —COOCH3 group, a —CONH2 group, and a —CH2OH group satisfy the following formula (2): 75?tan ?(60)/tan ?(5)×100?225??(1) PIA/(PIB+PIC+PID+PIE+PIF+PIG+PIH)?0.60??(2) wherein tan ?(60), tan ?(5), PIA, PIB, PIC, PID, PIE, PIF, PIG and PIH are as defined in the specification. Also disclosed is a molded article obtained by molding the ethylene/tetrafluoroethylene copolymer and an electric wire including a core and a coat formed from the ethylene/tetrafluoroethylene copolymer.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: January 10, 2023
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Ryouichi Yano, Tatsuya Funaoka, Takahiro Kitahara, Takashi Sekiguchi, Kazunobu Uchida, Yuuko Takano
  • ETHYLENE/TETRAFLUOROETHYLENE COPOLYMER
    Publication number: 20200362077
    Abstract: An ethylene/tetrafluoroethylene copolymer satisfying the following formula (1), wherein peak intensities, determined by Fourier transform infrared spectroscopy, of vibrations derived from a —CF2H group, a —CF2CH2COF group, a —COF group, a —COOH group, a dimer of a —CF2COOH group and a monomer of a CF2CH2COOH group, a —COOCH3 group, a —CONH2 group, and a —CH2OH group satisfy the following formula (2): 75?tan ?(60)/tan ?(5)×100?225 ??(1) PIA/(PIB+PIC+PID+PIE+PIF+PIG+PIH)?0.60 ??(2) wherein tan ?(60), tan ?(5), PIA, PIB, PIC, PID, PIE, PIF, PIG and PIH are as defined in the specification. Also disclosed is a molded article obtained by molding the ethylene/tetrafluoroethylene copolymer and an electric wire including a core and a coat formed from the ethylene/tetrafluoroethylene copolymer.
    Type: Application
    Filed: November 8, 2018
    Publication date: November 19, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Ryouichi YANO, Tatsuya FUNAOKA, Takahiro KITAHARA, Takashi SEKIGUCHI, Kazunobu UCHIDA, Yuuko TAKANO
  • Developing agent and method of manufacturing the same
    Patent number: 6153347
    Abstract: A wax dispersion in a developing agent using a polyester resin is improved by adding an ester wax in the polyester polymerizing step or both in the polymerizing and kneading steps, or by adding a compatibilizing agent selected from the group consisting of alkylene block copolymer or graft copolymer to a polyester-styrene hybrid resin used in place of the polyester resin.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: November 28, 2000
    Assignees: Toshiba TEC Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Takahito Kabai, Yuuko Takano, Yasuo Goto, Toshiaki Yamauchi, Yukihiro Fujikura, Hisanobu Ajima, Yoshihito Shimada, Hiroshi Ohno