Patents by Inventor Mikiya Nishida

Mikiya Nishida 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).

  • Publication number: 20210213647
    Abstract: A powder particle mixture which contains a polybutylene terephthalate resin and a polycarbonate resin, and which is characterized in that: the average particle diameter thereof is more than 1 ?m but 100 ?m or less; the uniformity thereof is 4 or less; the melting point thereof is more than 220° C.; and the difference between the melting point thereof and the crystallization temperature thereof is 60° C. or more. A powder particle composition which is characterized by containing inorganic microparticles that have an average particle diameter of 20-500 nm at a ratio of 0.1-5 parts by weight relative to 100 parts by weight of the powder particle mixture. The present invention efficiently provides a polybutylene terephthalate resin powder which is suitable as a material powder for the production of a three-dimensional shaped product by means of Selective Laser Sintering 3D printer.
    Type: Application
    Filed: October 8, 2019
    Publication date: July 15, 2021
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Kei WATANABE, Kazusada TAKEDA, Junji ISHIBASHI, Hisashi MIYAMA, Mikiya NISHIDA
  • Patent number: 11008426
    Abstract: A polyarylene sulfide resin particulate has a mean particle diameter from more than 1 ?m to 100 the uniformity is 4 or less, the melt viscosity measured at temperature of 300° C. and shear rate of 1216 sec?1 is 150 to 500 Pa·s, and the recrystallization temperature, defined as temperature of the heat generation peak at the time of crystallization when cooled from 340° C. to 50° C. at 20° C./min using a differential scanning calorimeter, is 150 to 210° C. The polyarylene sulfide resin particulate is suitable as a material powder for producing a three-dimensional molding by a powder sintering three-dimensional printer can be provided efficiently.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: May 18, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Kei Watanabe, Kazusada Takeda, Hisashi Miyama, Mikiya Nishida
  • Patent number: 11001046
    Abstract: A method of producing polybutylene terephthalate resin shaped moldings includes supplying a 3D printer with a polybutylene terephthalate resin powder mixture that contains 100 parts by weight of a polybutylene terephthalate resin powder material having a mean diameter of more than 1 ?m and 100 ?m or less, a uniformity coefficient of 4 or less, and a terminal carboxyl group quantity of 35 eq/t or more and 50 eq/t or less, and 0.1 to 5 parts by weight of inorganic particles having a mean diameter of 20 to 500 nm.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: May 11, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Kei Watanabe, Kazusada Takeda, Yosuke Nishimura, Hiroshi Takezaki, Hisashi Miyama, Mikiya Nishida
  • Publication number: 20200354528
    Abstract: A polyarylene sulfide resin particulate has a mean particle diameter from more than 1 ?m to 100 the uniformity is 4 or less, the melt viscosity measured at temperature of 300° C. and shear rate of 1216 sec?1 is 150 to 500 Pa·s, and the recrystallization temperature, defined as temperature of the heat generation peak at the time of crystallization when cooled from 340° C. to 50° C. at 20° C./min using a differential scanning calorimeter, is 150 to 210° C. The polyarylene sulfide resin particulate is suitable as a material powder for producing a three-dimensional molding by a powder sintering three-dimensional printer can be provided efficiently.
    Type: Application
    Filed: January 17, 2017
    Publication date: November 12, 2020
    Inventors: Kei Watanabe, Kazusada TAKEDA, Hisashi MIYAMA, Mikiya NISHIDA
  • Publication number: 20200055234
    Abstract: A polyarylene sulfide resin powder granular article mixture enabling production of a highly heat-resistant and high-ductility three-dimensional molded article has: 5-25 parts by weight of fluorine resin powder granular article with respect to 100 parts by weight of polyarylene sulfide resin powder granular article; an average particle size of greater than 1 ?m to 100 ?m or less; an angle of repose of 43 degrees or less; and a homogeneity of 4 or less.
    Type: Application
    Filed: October 13, 2017
    Publication date: February 20, 2020
    Inventors: Kei Watanabe, Kazusada Takeda, Hisashi Miyama, Mikiya Nishida, Hikaru Shibata
  • Publication number: 20200040204
    Abstract: A method of producing polybutylene terephthalate resin shaped moldings includes supplying a 3D printer with a polybutylene terephthalate resin powder mixture that contains 100 parts by weight of a polybutylene terephthalate resin powder material having a mean diameter of more than 1 ?m and 100 ?m or less, a uniformity coefficient of 4 or less, and a terminal carboxyl group quantity of 35 eq/t or more and 50 eq/t or less, and 0.1 to 5 parts by weight of inorganic particles having a mean diameter of 20 to 500 nm.
    Type: Application
    Filed: October 2, 2019
    Publication date: February 6, 2020
    Inventors: Kei Watanabe, Kazusada Takeda, Yosuke Nishimura, Hiroshi Takezaki, Hisashi Miyama, Mikiya Nishida
  • Publication number: 20180186926
    Abstract: A polyester resin powder mixture has a small average particle size, excellent powder flowability, and high strength after molding. The polyester resin powder mixture is obtained by blending 0.1-5 parts by weight of silica microparticles having an average particle size of 20-500 nm in 100 parts by weight of a polyester resin powder having an average particle size that is over 1 ?m and is less than or equal to 100 ?m, and that has a uniformity of 4 or less.
    Type: Application
    Filed: April 27, 2016
    Publication date: July 5, 2018
    Inventors: Kei Watanabe, Kazusada Takeda, Yosuke Nishimura, Hiroshi Takezaki, Hisashi Miyama, Mikiya Nishida