Patents by Inventor Souki Yoshida

Souki Yoshida 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: 11098190
    Abstract: Provided is a polybutylene terephthalate resin composition containing, with respect to 100 parts by mass of (A) a polybutylene terephthalate resin, (B) a total of 30 to 60 parts by mass of at least two different brominated flame retardants selected from the group consisting of a brominated epoxy compound, a brominated polycarbonate compound and a brominated polystyrene compound, (C) 5 to 15 parts by mass of an antimony compound, (D) 5 to 30 parts by mass of an elastomer, and (E) 0.5 to 3 parts by mass of a mold-release agent.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: August 24, 2021
    Assignee: Mitsubishi Engineering-Plastics Corporation
    Inventors: Souki Yoshida, Yasushi Yamanaka
  • Publication number: 20210246302
    Abstract: Disclosed is a connector connection port formed by injection molding a polybutylene terephthalate resin material. A protruding boss part is provided on an outer or inner peripheral surface of the connector connection port. Voids are present in the boss part and a lower part of the outer or inner peripheral surface on which the boss part is provided. When a total of cross-sectional areas of voids in a region at a height of 0-0.5 mm from the outer or inner peripheral surface in the boss part is S1, a total of cross-sectional areas of voids in a region at a depth of 0-0.5 mm from the outer or inner peripheral surface on which the boss part is provided is S2, and a total of S1 and S2 is 100%, an areal ratio of S1 is 5% to 45% and an areal ratio of S2 is 55% to 95%.
    Type: Application
    Filed: April 23, 2021
    Publication date: August 12, 2021
    Applicant: Mitsubishi Engineering-Plastics Corporation
    Inventors: Souki YOSHIDA, Yasushi YAMANAKA
  • Publication number: 20190185659
    Abstract: Provided is a polybutylene terephthalate resin composition containing, with respect to 100 parts by mass of (A) a polybutylene terephthalate resin, (B) a total of 30 to 60 parts by mass of at least two different brominated flame retardants selected from the group consisting of a brominated epoxy compound, a brominated polycarbonate compound and a brominated polystyrene compound, (C) 5 to 15 parts by mass of an antimony compound, (D) 5 to 30 parts by mass of an elastomer, and (E) 0.5 to 3 parts by mass of a mold-release agent.
    Type: Application
    Filed: May 17, 2017
    Publication date: June 20, 2019
    Applicant: Mitsubishi Engineering-Plastics Corporation
    Inventors: Souki YOSHIDA, Yasushi YAMANAKA
  • Patent number: 9957388
    Abstract: A polybutylene terephthalate resin composition is provided, which exhibits an excellent impact resistance, flame retardancy, heat aging resistance, lightfastness, and moist heat resistance and which also has an excellent moldability. Also provided is a molded article formed by molding this polybutylene terephthalate resin composition. The polybutylene terephthalate resin composition contains a polybutylene terephthalate resin (A) and a polycarbonate resin (B), and contains 50 to 80 mass parts (A) and 20 to 50 mass parts (B) per 100 mass parts of the total of (A) and (B), and additionally contains, per 100 mass parts of the total of (A) and (B), 5 to 20 mass parts of an elastomer (C), 5 to 40 mass parts of a flame retardant (D), and 1 to 15 mass parts of an antimony compound (E).
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: May 1, 2018
    Assignee: Mitsubishi Engineering-Plastics Corporation
    Inventors: Yasushi Yamanaka, Souki Yoshida
  • Publication number: 20150368459
    Abstract: A polybutylene terephthalate resin composition is provided, which exhibits an excellent impact resistance, flame retardancy, heat aging resistance, lightfastness, and moist heat resistance and which also has an excellent moldability. Also provided is a molded article formed by molding this polybutylene terephthalate resin composition. The polybutylene terephthalate resin composition contains a polybutylene terephthalate resin (A) and a polycarbonate resin (B), and contains 50 to 80 mass parts (A) and 20 to 50 mass parts (B) per 100 mass parts of the total of (A) and (B), and additionally contains, per 100 mass parts of the total of (A) and (B), 5 to 20 mass parts of an elastomer (C), 5 to 40 mass parts of a flame retardant (D), and 1 to 15 mass parts of an antimony compound (E).
    Type: Application
    Filed: January 9, 2014
    Publication date: December 24, 2015
    Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATION
    Inventors: Yasushi YAMANAKA, Souki YOSHIDA
  • Patent number: 9034148
    Abstract: A method to inexpensively and efficiently produce conductive materials on the surface of which a nano-level fine structure is formed includes surface modification including immersing a stable anode electrode and a workpiece as a cathode electrode, the workpiece including a conductive material with a work surface, in an electrolytic solution, then applying a voltage not less than a first voltage and less than a second voltage between the stable anode electrode and the workpiece as the cathode electrode immersed in the electrolytic solution, thereby modifying the work surface, the first voltage being a voltage corresponding to a current value that is ½ of the sum of a first maximum current value appearing first in a positive voltage region and a first minimum current value appearing first in the positive voltage region with respect to voltage-current characteristics of a surface modification treatment system, the second voltage exhibiting a complete-state plasma.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: May 19, 2015
    Assignee: JFE STEEL CORPORATION
    Inventors: Masayasu Nagoshi, Kaoru Sato, Seiichi Watanabe, Souki Yoshida
  • Patent number: 8968839
    Abstract: There is provided a method for producing a surface-treated metallic material, by use of which a metallic material having a stable and excellent sliding characteristic can be produced with a low environmental load without covering the metallic material surface with an oxide film. The method for producing a surface-treated metallic material includes immersing an anode and a cathode in an electrolyte solution, placing a metallic material used as a material to be treated above the surface of the electrolyte solution, and applying a voltage between the anode and the cathode to treat the metallic material surface, the voltage being equal to or higher than a voltage for causing a complete plasma state.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: March 3, 2015
    Assignee: JFE Steel Corporation
    Inventors: Masayasu Nagoshi, Kaoru Sato, Seiichi Watanabe, Souki Yoshida
  • Publication number: 20140144782
    Abstract: A method to inexpensively and efficiently produce conductive materials on the surface of which a nano-level fine structure is formed includes surface modification including immersing a stable anode electrode and a workpiece as a cathode electrode, the workpiece including a conductive material with a work surface, in an electrolytic solution, then applying a voltage not less than a first voltage and less than a second voltage between the stable anode electrode and the workpiece as the cathode electrode immersed in the electrolytic solution, thereby modifying the work surface, the first voltage being a voltage corresponding to a current value that is ½ of the sum of a first maximum current value appearing first in a positive voltage region and a first minimum current value appearing first in the positive voltage region with respect to voltage-current characteristics of a surface modification treatment system, the second voltage exhibiting a complete-state plasma.
    Type: Application
    Filed: August 26, 2011
    Publication date: May 29, 2014
    Applicant: JFE STEEL CORPORATION
    Inventors: Masayasu Nagoshi, Kaoru Sato, Seiichi Watanabe, Souki Yoshida
  • Publication number: 20130243975
    Abstract: There is provided a method for producing a surface-treated metallic material, by use of which a metallic material having a stable and excellent sliding characteristic can be produced with a low environmental load without covering the metallic material surface with an oxide film. The method for producing a surface-treated metallic material includes immersing an anode and a cathode in an electrolyte solution, placing a metallic material used as a material to be treated above the surface of the electrolyte solution, and applying a voltage between the anode and the cathode to treat the metallic material surface, the voltage being equal to or higher than a voltage for causing a complete plasma state.
    Type: Application
    Filed: November 24, 2011
    Publication date: September 19, 2013
    Applicant: JFE STEEL CORPORATION
    Inventors: Masayasu Nagoshi, Kaoru Sato, Seiichi Watanabe, Souki Yoshida