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).
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Patent number: 11098190Abstract: 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: GrantFiled: May 17, 2017Date of Patent: August 24, 2021Assignee: Mitsubishi Engineering-Plastics CorporationInventors: Souki Yoshida, Yasushi Yamanaka
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Publication number: 20210246302Abstract: 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: ApplicationFiled: April 23, 2021Publication date: August 12, 2021Applicant: Mitsubishi Engineering-Plastics CorporationInventors: Souki YOSHIDA, Yasushi YAMANAKA
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Publication number: 20190185659Abstract: 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: ApplicationFiled: May 17, 2017Publication date: June 20, 2019Applicant: Mitsubishi Engineering-Plastics CorporationInventors: Souki YOSHIDA, Yasushi YAMANAKA
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Patent number: 9957388Abstract: 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: GrantFiled: January 9, 2014Date of Patent: May 1, 2018Assignee: Mitsubishi Engineering-Plastics CorporationInventors: Yasushi Yamanaka, Souki Yoshida
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Publication number: 20150368459Abstract: 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: ApplicationFiled: January 9, 2014Publication date: December 24, 2015Applicant: MITSUBISHI ENGINEERING-PLASTICS CORPORATIONInventors: Yasushi YAMANAKA, Souki YOSHIDA
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Patent number: 9034148Abstract: 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: GrantFiled: August 26, 2011Date of Patent: May 19, 2015Assignee: JFE STEEL CORPORATIONInventors: Masayasu Nagoshi, Kaoru Sato, Seiichi Watanabe, Souki Yoshida
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Patent number: 8968839Abstract: 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: GrantFiled: November 24, 2011Date of Patent: March 3, 2015Assignee: JFE Steel CorporationInventors: Masayasu Nagoshi, Kaoru Sato, Seiichi Watanabe, Souki Yoshida
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Publication number: 20140144782Abstract: 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: ApplicationFiled: August 26, 2011Publication date: May 29, 2014Applicant: JFE STEEL CORPORATIONInventors: Masayasu Nagoshi, Kaoru Sato, Seiichi Watanabe, Souki Yoshida
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Publication number: 20130243975Abstract: 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: ApplicationFiled: November 24, 2011Publication date: September 19, 2013Applicant: JFE STEEL CORPORATIONInventors: Masayasu Nagoshi, Kaoru Sato, Seiichi Watanabe, Souki Yoshida