Patents by Inventor Koya ITO

Koya ITO 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).

  • METHOD OF PRODUCING POLYBUTYLENE TEREPHTHALATE RESIN PARTICLES, AND POLYBUTYLENE TEREPHTHALATE RESIN PARTICLES
    Publication number: 20200062892
    Abstract: A method produces polybutylene terephthalate resin particles, which includes (a) a step of heating a polybutylene terephthalate resin in an organic solvent to obtain a solution of a polybutylene terephthalate resin (dissolution step), and (b) a step of flash-cooling the solution to precipitate polybutylene terephthalate resin particles (precipitation step). The method produces PBT resin particles by a simple operation that can be performed industrially.
    Type: Application
    Filed: November 13, 2017
    Publication date: February 27, 2020
    Inventors: Chizuru Asahara, Koya Ito, Toshiya Takahashi, Kei Makita, Hisashi Miyama
  • Polyvinylidene fluoride resin particles and method for producing same
    Patent number: 10202496
    Abstract: A production method of polyvinylidene fluoride resin particles comprising: (Process a1) a process to precipitate the polyvinylidene fluoride resin particles by adding a 100 mass % solution in total consisting of 75 to 99 mass % organic solvent, 1 to 25 mass % water and 0.5 to 15 mass % polyvinylidene fluoride resin to a poor solvent of the polyvinylidene fluoride resin; or (Process a2) a process to precipitate polyvinylidene fluoride resin particles by performing a flash-crystallization of the solution. With such a configuration, PVDF resin particles can be industrially produced by simple operations without using surfactant agent.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: February 12, 2019
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Toshiya Takahashi, Kei Makita, Naoki Matsuda, Koya Ito, Yoshinori Kondo, Yuji Echigo
  • POLYVINYLIDENE FLUORIDE RESIN PARTICLES AND METHOD FOR PRODUCING SAME
    Publication number: 20170051116
    Abstract: A production method of polyvinylidene fluoride resin particles comprising: (Process a1) a process to precipitate the polyvinylidene fluoride resin particles by adding a 100 mass % solution in total consisting of 75 to 99 mass % organic solvent, 1 to 25 mass % water and 0.5 to 15 mass % polyvinylidene fluoride resin to a poor solvent of the polyvinylidene fluoride resin; or (Process a2) a process to precipitate polyvinylidene fluoride resin particles by performing a flash-crystallization of the solution. With such a configuration, PVDF resin particles can be industrially produced by simple operations without using surfactant agent.
    Type: Application
    Filed: November 7, 2014
    Publication date: February 23, 2017
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Toshiya TAKAHASHI, Kei MAKITA, Naoki MATSUDA, Koya ITO, Yoshinori KONDO, Yuji ECHIGO