Patents by Inventor Kaoru MINAGAWA

Kaoru MINAGAWA 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).

  • Patent number: 11701864
    Abstract: A metal/resin composite structure includes: a metal member (M) having a fine uneven surface; and a polyamide-based resin member (A) bonded to the metal member (M), and the polyamide-based resin member (A) satisfies the following condition [A1] and condition [A2]: [A1] a glass transition temperature (Tg) observed by a differential scanning calorimeter (DSC) is equal to or higher than 85° C. and equal to or lower than 140° C.; and [A2] a crystallization temperature (Tc) observed by a differential scanning calorimeter (DSC) is equal to or higher than 250° C. and equal to or lower than 292° C.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: July 18, 2023
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Masaki Misumi, Kazuki Kimura, Kaoru Minagawa
  • Publication number: 20200254728
    Abstract: A metal/resin composite structure includes: a metal member (M) having a fine uneven surface; and a polyamide-based resin member (A) bonded to the metal member (M), and the polyamide-based resin member (A) satisfies the following condition [A1] and condition [A2]: [A1] a glass transition temperature (Tg) observed by a differential scanning calorimeter (DSC) is equal to or higher than 85° C. and equal to or lower than 140° C.; and [A2] a crystallization temperature (Tc) observed by a differential scanning calorimeter (DSC) is equal to or higher than 250° C. and equal to or lower than 292° C.
    Type: Application
    Filed: October 25, 2018
    Publication date: August 13, 2020
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masaki MISUMI, Kazuki KIMURA, Kaoru MINAGAWA
  • Patent number: 10253182
    Abstract: The problem of the invention is to provide a semi-aromatic polyamide resin composition having high rigidity, exceptional impact resistance, and exceptional zygosity with very little change in hardness associated with heating and cooling, as well as a molded article of this semi-aromatic polyamide resin composition. A semi-aromatic polyamide resin composition containing a semi-aromatic polyamide resin (A), acid-modified polyolefin resin (B), and fibrous filler (C), wherein the resin (A) contains a certain amount or more of terephthalic acid component units relative to the total number of moles of dicarboxylic acid component units, the semi-aromatic polyamide resin composition contains a certain amount or more of the resin (B), the glass transition temperature of the semi-aromatic polyamide resin composition is within a predetermined range, and the Vicat softening point of the resin (B) is within a predetermined range, is used as the semi-aromatic polyamide resin composition in order to solve this problem.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: April 9, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Kaoru Minagawa, Hiroki Ebata, Isao Washio, Kouichi Sano, Nobuhiro Takizawa, Akinori Amano
  • Publication number: 20160312027
    Abstract: The problem of the invention is to provide a semi-aromatic polyamide resin composition having high rigidity, exceptional impact resistance, and exceptional zygosity with very little change in hardness associated with heating and cooling, as well as a molded article of this semi-aromatic polyamide resin composition. A semi-aromatic polyamide resin composition containing a semi-aromatic polyamide resin (A), acid-modified polyolefin resin (B), and fibrous filler (C), wherein the resin (A) contains a certain amount or more of terephthalic acid component units relative to the total number of moles of dicarboxylic acid component units, the semi-aromatic polyamide resin composition contains a certain amount or more of the resin (B), the glass transition temperature of the semi-aromatic polyamide resin composition is within a predetermined range, and the Vicat softening point of the resin (B) is within a predetermined range, is used as the semi-aromatic polyamide resin composition in order to solve this problem.
    Type: Application
    Filed: December 19, 2014
    Publication date: October 27, 2016
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Kaoru MINAGAWA, Hiroki EBATA, Isao WASHIO, Kouichi SANO, Nobuhiro TAKIZAWA, Akinori AMANO