Patents by Inventor Yoshifumi Fukaya

Yoshifumi Fukaya 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: 10076855
    Abstract: An apparatus and a method for manufacturing an electricity storage material are provided which can avoid defective coating of the electricity storage material. An apparatus for manufacturing an electricity storage material includes: a dissolving device that dissolves a thickener in a solvent; a viscosity adjusting device that adjusts viscosity of a solution produced by the dissolving device; a first filtering device that filters the solution having the viscosity adjusted by the viscosity adjusting device; and a kneading device that kneads the solution filtered by the first filtering device and an active material. Since the apparatus can remove almost all microgels of the thickener by the first filtering device, defective coating can be prevented in the coating of the electricity storage material, and satisfactory electrodes can be manufactured.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: September 18, 2018
    Assignee: JTEKT CORPORATION
    Inventors: Takumi Mio, Takafumi Fujii, Yoshifumi Fukaya
  • Patent number: 9825298
    Abstract: An apparatus and method for manufacturing an electricity storage material are provided which allow easily measuring the dissolution rate to solubility of a solution of a powder thickener dissolved in a liquid solvent. An apparatus for manufacturing an electricity storage material includes: a dissolving device that dissolves in a liquid solvent a thickener as powder that is ionized when dissolved; and a dissolution-rate-to-solubility determining device that measures conductivity of the solution produced by the dissolving device and determines a dissolution rate to solubility of the solution based on the measured conductivity. The dissolution rate to solubility can thus be determined without the need to stop the dissolving device during dissolution of the thickener in the liquid solvent. This can significantly improve production efficiency. Since excessive operation of the dissolving device can be prevented, energy saving can be achieved.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: November 21, 2017
    Assignee: JTEKT CORPORATION
    Inventors: Takumi Mio, Yoshifumi Fukaya, Takafumi Fujii
  • Patent number: 9531007
    Abstract: A production apparatus for an electric storage material includes a dissolution device that dissolves a thickener in a solvent by applying vibration to the solvent, and a kneading device that kneads a solution of the thickener having an adjusted viscosity and an active substance. The thickener is dissolved in the solvent, and a powder of the active substance and the like are dispersed and kneaded in the solution of the thickener having the adjusted viscosity. Thus, kneading can be performed in a short time, and damage to the active substance can be suppressed.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: December 27, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Takumi Mio, Koji Nishi, Junya Fujita, Yoshifumi Fukaya, Takafumi Fujii, Kazuya Suzuki
  • Publication number: 20150360392
    Abstract: An apparatus and a method for manufacturing an electricity storage material are provided which can avoid defective coating of the electricity storage material. An apparatus for manufacturing an electricity storage material includes: a dissolving device that dissolves a thickener in a solvent; a viscosity adjusting device that adjusts viscosity of a solution produced by the dissolving device; a first filtering device that filters the solution having the viscosity adjusted by the viscosity adjusting device; and a kneading device that kneads the solution filtered by the first filtering device and an active material. Since the apparatus can remove almost all microgels of the thickener by the first filtering device, defective coating can be prevented in the coating of the electricity storage material, and satisfactory electrodes can be manufactured.
    Type: Application
    Filed: June 5, 2015
    Publication date: December 17, 2015
    Applicant: JTEKT Corporation
    Inventors: Takumi MIO, Takafumi FUJII, Yoshifumi Fukaya
  • Publication number: 20150200396
    Abstract: An apparatus and method for manufacturing an electricity storage material are provided which allow easily measuring the dissolution rate to solubility of a solution of a powder thickener dissolved in a liquid solvent. An apparatus for manufacturing an electricity storage material includes: a dissolving device that dissolves in a liquid solvent a thickener as powder that is ionized when dissolved; and a dissolution-rate-to-solubility determining device that measures conductivity of the solution produced by the dissolving device and determines a dissolution rate to solubility of the solution based on the measured conductivity. The dissolution rate to solubility can thus be determined without the need to stop the dissolving device during dissolution of the thickener in the liquid solvent. This can significantly improve production efficiency. Since excessive operation of the dissolving device can be prevented, energy saving can be achieved.
    Type: Application
    Filed: December 29, 2014
    Publication date: July 16, 2015
    Applicant: JTEKT CORPORATION
    Inventors: Takumi MIO, Yoshifumi FUKAYA, Takafumi FUJII
  • Publication number: 20140225043
    Abstract: A production apparatus for an electric storage material includes a dissolution device that dissolves a thickener in a solvent by applying vibration to the solvent, and a kneading device that kneads a solution of the thickener having an adjusted viscosity and an active substance. The thickener is dissolved in the solvent, and a powder of the active substance and the like are dispersed and kneaded in the solution of the thickener having the adjusted viscosity. Thus, kneading can be performed in a short time, and damage to the active substance can be suppressed.
    Type: Application
    Filed: February 4, 2014
    Publication date: August 14, 2014
    Applicant: JTEKT Corporation
    Inventors: Takumi MIO, Koji Nishi, Junya Fujita, Yoshifumi Fukaya, Takafumi Fujii, Kazuya Suzuki
  • Publication number: 20140056095
    Abstract: A kneading device includes an index setting portion that sets an index for kneading based on a motion energy of particles of an electricity storage material, a mean free path of the particles of the electricity storage material, and a kneading time for the electricity storage material, a condition setting portion that sets a condition for the kneading based on the set index for the kneading, and a kneading control portion that controls the kneading of the electricity storage material in accordance with the set condition for the kneading.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 27, 2014
    Applicant: JTEKT Corporation
    Inventors: Takumi MIO, Takashi Matsuura, Koji Nishi, Yoshifumi Fukaya