Patents by Inventor Hiroki Akatsu

Hiroki Akatsu 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: 11015055
    Abstract: A resin composition comprises (A) 100 parts by mass of a resin selected from the group consisting of polyamides, polylactic acids, and polyphenylene sulfides each having a melting point of 170° C. to 370° C., (B) 0.05 to 5.0 parts by mass of a triazine compound represented by the disclosed general formula (1), preferred examples of which are compounds of the formula: wherein RA, RB, RC, and RD, which may be the same or different, each represent a hydrogen atom or a C1-C4 alkyl group, (C) 0 to 3.0 parts by mass of at least one compound selected from the group consisting of 2,2?-methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol], 2-[3-hydroxy-4-(4,6-diphenyl-1,3,5-triazin-2-yl)phenoxy]ethyl 2-ethylhexanoate, and 2,4,6-tris(2-hydroxy-4-hexyloxy-3-methylphenyl)-1,3,5-triazine, and (D) 0 to 1.0 part by mass of a light stabilizer being particulate at room temperature (25° C.). The resin composition is useful for making molded articles having improved heat resistance and weatherability.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: May 25, 2021
    Assignee: ADEKA CORPORATION
    Inventors: Hiroki Akatsu, Takashi Ayabe
  • Patent number: 10465060
    Abstract: Provided is a polyamide resin composition comprising a polyamide resin, a PAN carbon fiber, carbon black, and a black dye, wherein the polyamide resin composition contains the PAN carbon fiber in an amount of 7.5 to 25% by weight, based on the weight of the composition, contains the carbon black in an amount of 0.01 to 0.55% by weight, based on the weight of the composition, and contains the black dye in an amount of 0.01 to 1.0% by weight, based on the weight of the composition.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: November 5, 2019
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Akio Miyamoto, Yasuharu Fukui, Hiroki Akatsu, Masaya Tonari
  • Publication number: 20190144671
    Abstract: A resin composition including: (A) 100 parts by mass of a resin selected from the group consisting of polyamide, polylactic acid, and polyphenylene sulfide each having a melting point of 170° C. to 370° C.; (B) 0.05 to 5.0 parts by mass of a triazine compound represented by general formula (1); (C) 0 to 3.0 parts by mass of a specific oxidizing agent; and (D) 0 to 1.0 part by mass of a specific light stabilizer.
    Type: Application
    Filed: April 27, 2017
    Publication date: May 16, 2019
    Inventors: Hiroki AKATSU, Takashi AYABE
  • Patent number: 10059842
    Abstract: The present invention relates to a polyamide resin composition, which not only demonstrates superior mechanical properties but also has favorable moldability and superior thermal conductivity, wherein the polyamide resin composition comprises (A) a polyamide resin, (B) glass fibers, (C) a thermally conductive filler, and (D) a polyamide elastomer, and the amount of the component (B) based on 100 parts by mass of the total amount of the components (A), (B), (C) and (D) is 9 parts by mass to 35 parts by mass; and, a molded article comprising the same.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: August 28, 2018
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Akio Miyamoto, Masuaki Ichikawa, Hiroki Akatsu, Yutaka Matsudomi
  • Publication number: 20180229482
    Abstract: A composite body in which a resin and a metal are contact-bonded with excellent adhesive force. Also, a composite body which is suppressed in decrease of bonding strength between a resin and a metal due to water absorption of the resin even if the composite body is left in rain or water, or is left in a high humidity environment or the like for a long period of time. The composite body is obtained by contact-bonding a thermoplastic resin (A) and a metal (B), and is characterized in that the thermoplastic resin (A) is a polyamide elastomer (1A) or a thermoplastic resin composition (2A) that contains a water absorbent thermoplastic resin (2a) and a metal hydroxide (2b).
    Type: Application
    Filed: April 17, 2018
    Publication date: August 16, 2018
    Inventors: Hiroki Akatsu, Hideki Fujimura, Riyousuke Sasaki, Shinichi Hirayama, Tetsurou Hiroki, Hideki Harada
  • Patent number: 9975317
    Abstract: Provided is a composite body in which a resin and a metal are contact-bonded with excellent adhesive force. Also provided is a composite body which is suppressed in decrease of bonding strength between a resin and a metal due to water absorption of the resin even if the composite body is left in rain or water, or is left in a high humidity environment or the like for a long period of time. The present invention relates to a composite body which is obtained by contact-bonding a thermoplastic resin (A) and a metal (B), and which is characterized in that the thermoplastic resin (A) is a polyamide elastomer (1A) or a thermoplastic resin composition (2A) that contains a water absorbent thermoplastic resin (2a) and a metal hydroxide (2b).
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: May 22, 2018
    Assignee: Ube Industries, Ltd.
    Inventors: Hiroki Akatsu, Hideki Fujimura, Riyousuke Sasaki, Shinichi Hirayama, Tetsurou Hiroki, Hideki Harada
  • Publication number: 20170306126
    Abstract: Provided is a polyamide resin composition comprising a polyamide resin, a PAN carbon fiber, carbon black, and a black dye, wherein the polyamide resin composition contains the PAN carbon fiber in an amount of 7.5 to 25% by weight, based on the weight of the composition, contains the carbon black in an amount of 0.01 to 0.55% by weight, based on the weight of the composition, and contains the black dye in an amount of 0.01 to 1.0% by weight, based on the weight of the composition.
    Type: Application
    Filed: October 27, 2015
    Publication date: October 26, 2017
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Akio MIYAMOTO, Yasuharu FUKUI, Hiroki AKATSU, Masaya TONARI
  • Publication number: 20170137622
    Abstract: The present invention relates to a polyamide resin composition, which not only demonstrates superior mechanical properties but also has favorable moldability and superior thermal conductivity, wherein the polyamide resin composition comprises (A) a polyamide resin, (B) glass fibers, (C) a thermally conductive filler, and (D) a polyamide elastomer, and the amount of the component (B) based on 100 parts by mass of the total amount of the components (A), (B), (C) and (D) is 9 parts by mass to 35 parts by mass; and, a molded article comprising the same.
    Type: Application
    Filed: June 29, 2015
    Publication date: May 18, 2017
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Akio MIYAMOTO, Masuaki ICHIKAWA, Hiroki AKATSU, Yutaka MATSUDOMI
  • Publication number: 20160185088
    Abstract: Provided is a composite body in which a resin and a metal are contact-bonded with excellent adhesive force. Also provided is a composite body which is suppressed in decrease of bonding strength between a resin and a metal due to water absorption of the resin even if the composite body is left in rain or water, or is left in a high humidity environment or the like for a long period of time. The present invention relates to a composite body which is obtained by contact-bonding a thermoplastic resin (A) and a metal (B), and which is characterized in that the thermoplastic resin (A) is a polyamide elastomer (1A) or a thermoplastic resin composition (2A) that contains a water absorbent thermoplastic resin (2a) and a metal hydroxide (2b).
    Type: Application
    Filed: August 12, 2014
    Publication date: June 30, 2016
    Inventors: Hiroki Akatsu, Hideki Fujimura, Riyousuke Sasaki, Shinichi Hirayama, Tetsurou Hiroki, Hideki Harada