Patents Assigned to J.E.T. CO., LTD.
  • Patent number: 11217867
    Abstract: A manufacturing method for a secondary battery and a manufacturing apparatus for a secondary battery that are applicable to a secondary battery in which an electrolyte solution injection hole has a diameter of 1.5 mm or more are provided. The secondary battery includes a battery case including a cover plate provided with an electrolyte solution injection hole, and a sealing member sealing the electrolyte solution injection hole. The manufacturing method includes a preparing step and a press-fitting step. The preparing step is preparing a cell in which, after an electrolyte solution is injected to the battery case through the electrolyte solution injection hole, the sealing member is disposed on the electrolyte solution injection hole. The press-fitting step is press-fitting the sealing member into the electrolyte solution injection hole while applying press-fitting load and ultrasonic vibration with a frequency of 20 kHz or more in parallel to a press-fitting direction.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: January 4, 2022
    Assignees: J.E.T. CO., LTD., PRIMEARTH EV ENERGY CO., LTD.
    Inventors: Hiroyuki Nishimura, Shigeki Hashimoto, Hideaki Yoshio, Shigeki Saito, So Kudo, Yuji Yamasaki, Kunihiro Takaoka, Hidenori Tagomori
  • Patent number: 10615059
    Abstract: A substrate processing device (10) for processing a plurality of substrates disposed at predetermined intervals includes a processing bath (12) that is configured to store processing liquid, and has a side surface (13) extending along a thickness direction of the plurality of substrates, and a discharge unit (14) that is disposed in a bottom portion of the processing bath (12), and is configured to discharge processing liquid in an upward direction toward the side surface (13).
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: April 7, 2020
    Assignee: J.E.T. CO., LTD.
    Inventors: Hirofumi Shomori, Atsuo Kimura
  • Patent number: 10514315
    Abstract: A lithium ion battery (11) that is a test object is housed in a vacuum chamber (14). An initial exhaust pipe (47) and an inspection exhaust pipe (51) are connected to the upper portion of the vacuum chamber (14). The inside of the vacuum chamber (14) is subjected to an initial exhaust through the initial exhaust pipe (47) to lower the pressure inside the vacuum chamber (14) to an inspection pressure (Pe). Thereafter, an inspection exhaust is performed through the inspection exhaust pipe (51). A sensor unit (16) is interposed in the inspection exhaust pipe (51). Exhaust gas passing through the inspection exhaust pipe (51) flows into the sensor unit (16) from an inlet port, and is caused to flow perpendicularly toward the sensor face of a gas sensor by a nozzle provided inside the sensor unit (16). The exhaust gas passes through the inside of the gas sensor, and is discharged to outside of the sensor unit (16) from an exhaust port.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: December 24, 2019
    Assignee: J.E.T. CO., LTD.
    Inventors: Shigeki Hashimoto, Manabu Ohtagaki
  • Patent number: 10483134
    Abstract: A substrate treatment device includes: a substrate holding unit including a plate-shaped holding table that rotatably holds a substrate so that a surface of the substrate on which the fine patterns are formed faces downward, and a plurality of holding pins provided on the holding table to hold an outer periphery of the substrate at a plurality of points; a heater that heats the substrate; a cover that internally houses the substrate holding unit and the heater, and forms a treatment chamber; a pump that exhausts the treatment chamber to make a negative-pressure atmosphere; an inert gas supply port that faces an opposite side surface opposite to the surface with the fine patterns formed thereon, and supplies inert gas into the treatment chamber; and a nozzle to jet a cleaning solution toward the surface with the fine patterns formed thereon and a gas exhaust port to communicate with the pump.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: November 19, 2019
    Assignee: J.E.T. CO., LTD.
    Inventor: Kazuo Sugihara
  • Patent number: 10444294
    Abstract: An inspection device (20) for inspecting a structure body (10) including a pair of electrodes and a separator disposed between the pair of electrodes is provided, the inspection device (20) includes: a measurement unit (30) including a direct-current constant voltage generator (32) that generates a constant inspection voltage applied to the pair of electrodes, and a detection circuit (34) that detects a current value between the pair of electrodes resulting from the application of the inspection voltage; and a processing unit (50) that determines whether the structure body (10) is defective or non-defective based on the detected current value, and the processing unit (50) has a function that, if two or more points at which a ratio (?I/?t) of a current value variation amount (?I) to a time variation amount (?t) varies from a value of no less than 0 to a negative value are observed or no point at which the ratio (?I/?t) varies from a value of no less than 0 to a negative value is observed during a period of tim
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: October 15, 2019
    Assignee: J.E.T. CO., LTD.
    Inventor: Shigeki Hashimoto
  • Patent number: 10186436
    Abstract: Provided are a substrate processing system and a substrate processing method that can obtain expected etching rate and selection ratio, and perform stable processing. A substrate (11) is soaked in processing liquid (12) stored in a processing bath (14). The processing bath (14) is sealed by cover members (21a and 21b), and the inside is pressurized by water vapor from the heated processing liquid (12). Pure water is consecutively added to the processing liquid (12). Internal pressure of the processing bath (14) is measured, a degree of opening of an exhaust valve (41) is increased or decreased based on the internal pressure (Pa), the internal pressure is kept at constant, a water addition amount of the pure water is increased or decreased based on the internal pressure (Pa), and the substrate (11) is processed using the processing liquid (12) at constant concentration and constant temperature.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: January 22, 2019
    Assignee: J.E.T. CO., LTD.
    Inventors: Hirofumi Shomori, Atsuo Kimura