Patents by Inventor Junpei Yamada

Junpei Yamada 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: 20240178399
    Abstract: Composite binder materials for energy storage applications are disclosed. The composite binder materials include a fluoropolymer, such as polytetrafluoroethylene (PTFE), integrated with a conductive additive and a low-melting point thermoplastic. Methods of making the composite binder materials are also disclosed. The methods include providing an emulsion of the fluoropolymer, mixing the low-melting point thermoplastic and the particulate conductive additive into the emulsion of the fluoropolymer to form a mixture, and coagulating the mixture to produce a coagulum including the composite binder material. The disclosure also provides a binder powder for an electrochemical device capable of providing an electrode mixture sheet having excellent uniformity of tensile strength. The disclosure relates to a binder powder for an electrochemical device, containing a non-fibrillated fibrillatable resin and a thermoplastic polymer.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 30, 2024
    Applicants: DAIKIN AMERICA, INC., DAIKIN INDUSTRIES, LTD.
    Inventors: Alec FALZONE, Emily Grumbles, Wade Simpson, Joseph Sunstrom, Ronald Hendershot, Taku Yamanaka, Taketo Kato, Takaya Yamada, Junpei Terada, Masato Tokuda, Kenta Nishimura
  • Publication number: 20240014713
    Abstract: A fixing structure for fixing a neutral wire and a temperature sensor fixes the neutral wire forming a neutral point of a stator coil and the temperature sensor. The fixing structure has a plurality of protruding portions that protrude from the neutral wire in a direction away from a current path in the neutral wire during energization and are opposed to each other. The temperature sensor is sandwiched between a plurality of protruding portions facing each other.
    Type: Application
    Filed: June 30, 2023
    Publication date: January 11, 2024
    Inventors: JUNPEI YAMADA, TAKEMASA YAMAMOTO, KOICHI TERADA
  • Publication number: 20230040799
    Abstract: A stator and a manufacturing method thereof is enabled to easily determine the quality of welding produced between conductors. The stator includes a stator core and a stator winding installed in the stator core. The stator winding is configured by including multiple flat conductor segments in which conductors 34 are coated with insulating films 35, respectively. At a leading end of each of the conductor segment, an exposed portion 33 is formed in which the conductor is exposed. At a coil end section of the stator winding, a pair of exposed portions of different conductor segments are joined together by laser welding. A collective conductor width in a joining direction in which exposed portions join with each other is smaller at a laser irradiation incidence side, which is a side of the exposed portions receiving laser irradiation than that at a side opposite to the laser irradiation incidence side.
    Type: Application
    Filed: August 3, 2022
    Publication date: February 9, 2023
    Applicant: DENSO CORPORATION
    Inventor: Junpei YAMADA
  • Patent number: 7541805
    Abstract: A magnetic characteristics measurement system includes a superconducting quantum interference device which detects a magnetization of a sample located in the vicinity of a superconducting pickup coil and outputs an electrical signal representing the magnetization. A coil is disposed to surround the superconducting pickup coil and is connected to an AC power supply so as to generate an alternating magnetic field. The AC signal output from the superconducting quantum interference device is sampled by use of an A/D converter which is operable in an audio frequency range and outputs a digital signal corresponding to the AC signal. Phase adjustment is performed so as to optimally correct a time shift of the digital signal in relation to a reference voltage signal. The phase-adjusted signal is subjected to Fourier transformation processing so as to detect harmonic components as magnetic characteristics.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: June 2, 2009
    Assignee: Kyushu Institute of Technology
    Inventors: Masaki Mito, Kunihiko Irie, Junpei Yamada, Seishi Takagi, Hiroyuki Deguchi
  • Publication number: 20080074110
    Abstract: A magnetic characteristics measurement system includes a superconducting quantum interference device which detects a magnetization of a sample located in the vicinity of a superconducting pickup coil and outputs an electrical signal representing the magnetization. A coil is disposed to surround the superconducting pickup coil and is connected to an AC power supply so as to generate an alternating magnetic field. The AC signal output from the superconducting quantum interference device is sampled by use of an A/D converter which is operable in an audio frequency range and outputs a digital signal corresponding to the AC signal. Phase adjustment is performed so as to optimally correct a time shift of the digital signal in relation to a reference voltage signal. The phase-adjusted signal is subjected to Fourier transformation processing so as to detect harmonic components as magnetic characteristics.
    Type: Application
    Filed: March 29, 2007
    Publication date: March 27, 2008
    Inventors: Masaki Mito, Kunihiko Irie, Junpei Yamada, Seishi Takagi, Hiroyuki Deguchi