Patents by Inventor Junko OHIRA

Junko OHIRA 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: 20220258071
    Abstract: An ion exchanger includes a housing, a tube member, and an ion exchange resin. The housing includes an inlet port and an outlet port. The tube member is arranged inside the housing. The ion exchange resin is arranged between the tube member and the housing. A first flow passage and a second flow passage are formed in the housing. The first flow passage is configured to cause the coolant that has flowed in through the inlet port to flow directly to the outlet port. The second flow passage is configured to cause the coolant that has flowed in through the inlet port and passed through the ion exchange resin to flow to the outlet port. The first flow passage and the second flow passage are formed to join together in a state of being oriented in a same direction toward the outlet port.
    Type: Application
    Filed: November 6, 2020
    Publication date: August 18, 2022
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Junko OHIRA, Tomohiro YOSHIDA, Shingo YABE, Minetaka KAWAMOTO
  • Patent number: 11165074
    Abstract: An ion exchanger includes a housing and an ion exchange resin filling the housing. The ion exchanger is configured to remove ions in a coolant through ion exchange when the coolant that has flowed into the housing passes through the ion exchange resin. The ion exchanger is also configured to discharge, from the housing, the coolant from which the ions have been removed. The ion exchange resin comprises a cation exchange resin, a strongly basic anion exchange resin, and a weakly basic anion exchange resin.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: November 2, 2021
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Junko Ohira
  • Patent number: 10718576
    Abstract: An ion exchanger includes a case having an inflow hole and an outflow hole. The case accommodates a tube. A first passage is defined between the case and the tube. A second passage is defined in the tube. A first end of the first passage and a first end of the second passage are connected to each other. The first passage includes a lower portion defining a lower accommodation portion that is filled with an anion exchange resin. The first passage includes an upper accommodation portion located above the lower accommodation portion. The upper accommodation portion is filled with a cation exchange resin. The upper accommodation portion has a smaller volume and a smaller refrigerant flow area than the lower accommodation portion.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: July 21, 2020
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Junko Ohira
  • Patent number: 10707501
    Abstract: An ion exchanger includes a case that is provided with an opening, an intake port, and a discharge port. The opening opens upward in the case. Coolant is drawn into the lower portion of the case through the intake port and discharged through the discharge port. An ion exchanging resin member and a cap are provided in the case. The ion exchanging resin member removes ions from the coolant. The cap is detachably attached to the case and closes the opening of the case. The ion exchanger further includes a tube member that is arranged to extend vertically in the case. The lower end aperture of the tube member is connected to the discharge port of the case. The upper end aperture of the tube member faces the inner top surface of the lid portion of the cap.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: July 7, 2020
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Junko Ohira
  • Patent number: 10569266
    Abstract: An ion exchanger includes a housing and a cartridge. The housing has an inlet port, through which coolant flows in, and an outlet port, through which the coolant flows out. The cartridge is detachably attached to the housing. The cartridge is filled with ion-exchange resin. The ion exchanger is configured to remove ions from the coolant through ion exchange when the coolant flowing in the housing passes through the ion-exchange resin. The cartridge includes a bypass route that causes some of the coolant that has flowed into the housing to bypass the ion-exchange resin and flow to the outlet port.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: February 25, 2020
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Junko Ohira
  • Publication number: 20190348693
    Abstract: An ion exchanger includes a housing and an ion exchange resin filling the housing. The ion exchanger is configured to remove ions in a coolant through ion exchange when the coolant that has flowed into the housing passes through the ion exchange resin. The ion exchanger is also configured to discharge, from the housing, the coolant from which the ions have been removed. The ion exchange resin comprises a cation exchange resin, a strongly basic anion exchange resin, and a weakly basic anion exchange resin.
    Type: Application
    Filed: April 24, 2019
    Publication date: November 14, 2019
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Junko OHIRA
  • Patent number: 10471372
    Abstract: An ion exchanger includes a housing, which includes an inlet and an outlet for a coolant and is open upwardly, and a cartridge mounted within the housing so as to be removable upwardly out of the housing. The cartridge includes a first case and a second case respectively located above and below the inlet and the outlet and capable of containing an ion exchange resin. The first case includes a first flow entrance, which is in fluid communication with the inlet of the housing, and a first flow exit, which is in fluid communication with the outlet of the housing. The second case includes a second flow entrance in fluid communication with the inlet of the housing and a second flow exit in fluid communication with the outlet of the housing.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: November 12, 2019
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Junko Ohira
  • Patent number: 10424816
    Abstract: A lithium-ion secondary battery (100) includes a wound electrode body (80), a nonaqueous electrolyte, and a box-shaped case (50). The wound electrode body includes a positive electrode (10), a negative electrode (20), and a separator (40). The box-shaped case contains the wound electrode body and the nonaqueous electrolyte. The wound electrode body includes a starting-end-side negative electrode remainder portion (22) provided in a winding-direction starting end portion (81) of the wound electrode body. The winding-direction starting end portion exists at a winding center side. The starting-end-side negative electrode remainder portion protrudes toward the winding center side along a winding direction beyond the positive electrode. A surplus nonaqueous electrolyte exists in a gap between the wound electrode body and the box-shaped case.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: September 24, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukiyoshi Ueno, Tomoyuki Mizuno, Kunimitsu Yamamoto, Junko Ohira, Kaoru Inoue, Hideaki Fujita, Hideki Sano
  • Patent number: 10413897
    Abstract: An ion exchanger includes a case and an ion exchange resin. The case includes an inflow hole into which a refrigerant flows and an outflow hole out of which the refrigerant flows. The ion exchange resin is arranged in the case to remove ions from the refrigerant. The inflow hole and the outflow hole are located at a lower end of the case. The case accommodates a tube extending in a vertical direction and connecting to the outflow hole. The ion exchange resin is located between an inner wall of the case and an outer wall of the tube. The inflow hole is formed so that the refrigerant flows through the inflow hole into the case and evenly into the ion exchange resin from a lower end surface of the ion exchange resin.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: September 17, 2019
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Junko Ohira
  • Patent number: 10317477
    Abstract: An inspection method of a secondary battery includes a charging step, an aging step, a pre-inspection discharge step, a voltage adjustment step, a self-discharge inspection step, and a deficiency determination step. A discharge condition in the pre-inspection discharge step is determined so that a voltage difference accumulation value Vs satisfies a predetermined range. The voltage difference accumulation value Vs is calculated by accumulating a value obtained by subtracting an output voltage from a predetermined voltage over a duration from start of the pre-inspection discharge step to end thereof.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: June 11, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukiyoshi Ueno, Junko Ohira
  • Patent number: 10249915
    Abstract: A method of manufacturing a nonaqueous secondary battery includes: constructing a battery assembly with a positive electrode, a negative electrode, and a nonaqueous electrolytic solution, the nonaqueous electrolytic solution containing an unsaturated carbonate; activating the battery assembly to decompose a portion of the unsaturated carbonate such that a percentage of the unsaturated carbonate is adjusted to be 0.9 mass % or less with respect to 100 mass % of a total amount of the nonaqueous electrolytic solution; self-discharging the battery assembly to measure a voltage drop amount; and determining whether internal short-circuit occurs in the battery assembly based on the voltage drop amount.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: April 2, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukiyoshi Ueno, Yuuichi Ito, Kunimitu Yamamoto, Junko Ohira
  • Patent number: 9966638
    Abstract: A manufacturing method for a non-aqueous secondary battery includes the following steps. (a) Preparing an electrode body including a positive electrode having a positive electrode active material layer and a negative electrode having a negative electrode active material layer. (b) Constructing a battery assembly using the electrode body and a non-aqueous electrolyte. (c) Initially charging the battery assembly. (d) Aging the battery assembly at a temperature of 60° C. or higher. (e) Forcibly starting to discharge the battery assembly in said temperature region after lowering the temperature of the battery assembly down to a temperature region of 35° C. or higher and 55° C. or lower. (f) Adjusting the SOC of the battery assembly. (g) Measuring a voltage drop amount by self-discharging the battery assembly. And (h) determining whether or not the battery assembly is qualified based on the voltage drop amount.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: May 8, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukiyoshi Ueno, Junko Ohira
  • Publication number: 20180117496
    Abstract: An ion exchanger includes a housing, which includes an inlet and an outlet for a coolant and is open upwardly, and a cartridge mounted within the housing so as to be removable upwardly out of the housing. The cartridge includes a first case and a second case respectively located above and below the inlet and the outlet and capable of containing an ion exchange resin. The first case includes a first flow entrance, which is in fluid communication with the inlet of the housing, and a first flow exit, which is in fluid communication with the outlet of the housing. The second case includes a second flow entrance in fluid communication with the inlet of the housing and a second flow exit in fluid communication with the outlet of the housing.
    Type: Application
    Filed: October 20, 2017
    Publication date: May 3, 2018
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Junko OHIRA
  • Patent number: 9960452
    Abstract: A method of producing a nonaqueous secondary battery includes: preparing an electrode body (S10); constructing a battery assembly with the electrode body and a nonaqueous electrolyte (S20); initially charging the battery assembly (S30); aging the battery assembly at 40° C. or higher (S40); adjusting an SOC of the battery assembly (S60), wherein, the adjusting the SOC is performed such that a residual capacity percentage of the battery assembly is 11.5% or more and 14% or less; self-discharging the battery assembly and measuring a voltage drop amount (S70); and determining a quality of the battery assembly based on the voltage drop amount (S80).
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: May 1, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukiyoshi Ueno, Junko Ohira
  • Publication number: 20180058781
    Abstract: An ion exchanger includes a case having an inflow hole and an outflow hole. The case accommodates a tube. A first passage is defined between the case and the tube. A second passage is defined in the tube. A first end of the first passage and a first end of the second passage are connected to each other. The first passage includes a lower portion defining a lower accommodation portion that is filled with an anion exchange resin. The first passage includes an upper accommodation portion located above the lower accommodation portion. The upper accommodation portion is filled with a cation exchange resin. The upper accommodation portion has a smaller volume and a smaller refrigerant flow area than the lower accommodation portion.
    Type: Application
    Filed: July 21, 2017
    Publication date: March 1, 2018
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Junko OHIRA
  • Publication number: 20180056284
    Abstract: An ion exchanger includes a case and an ion exchange resin. The case includes an inflow hole into which a refrigerant flows and an outflow hole out of which the refrigerant flows. The ion exchange resin is arranged in the case to remove ions from the refrigerant. The inflow hole and the outflow hole are located at a lower end of the case. The case accommodates a tube extending in a vertical direction and connecting to the outflow hole. The ion exchange resin is located between an inner wall of the case and an outer wall of the tube. The inflow hole is formed so that the refrigerant flows through the inflow hole into the case and evenly into the ion exchange resin from a lower end surface of the ion exchange resin.
    Type: Application
    Filed: July 12, 2017
    Publication date: March 1, 2018
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Junko OHIRA
  • Publication number: 20170368547
    Abstract: An ion exchanger includes a housing and a cartridge. The housing has an inlet port, through which coolant flows in, and an outlet port, through which the coolant flows out. The cartridge is detachably attached to the housing. The cartridge is filled with ion-exchange resin. The ion exchanger is configured to remove ions from the coolant through ion exchange when the coolant flowing in the housing passes through the ion-exchange resin. The cartridge includes a bypass route that causes some of the coolant that has flowed into the housing to bypass the ion-exchange resin and flow to the outlet port.
    Type: Application
    Filed: June 13, 2017
    Publication date: December 28, 2017
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Junko OHIRA
  • Patent number: 9812742
    Abstract: A manufacturing method according to the present invention is a method for manufacturing a nonaqueous electrolyte secondary battery including graphite as a negative-electrode active material. The manufacturing method includes: a step of assembling the battery including a positive electrode and a negative electrode; and a step of performing an initial charging process of performing first charging on the battery. In the initial charging process, charging is performed at a relatively large first current value when a gas generation amount caused in the battery during the charging does not depend on a charging current value, and the charging is performed at a second current value smaller than the first current value when the gas generation amount depends on the charging current value.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: November 7, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kunimitsu Yamamoto, Yukiyoshi Ueno, Tomoyuki Mizuno, Junko Ohira
  • Publication number: 20170263953
    Abstract: An ion exchanger includes a case that is provided with an opening, an intake port, and a discharge port. The opening opens upward in the case. Coolant is drawn into the lower portion of the case through the intake port and discharged through the discharge port. An ion exchanging resin member and a cap are provided in the case. The ion exchanging resin member removes ions from the coolant. The cap is detachably attached to the case and closes the opening of the case. The ion exchanger further includes a tube member that is arranged to extend vertically in the case. The lower end aperture of the tube member is connected to the discharge port of the case. The upper end aperture of the tube member faces the inner top surface of the lid portion of the cap.
    Type: Application
    Filed: February 28, 2017
    Publication date: September 14, 2017
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventor: Junko OHIRA
  • Patent number: 9722260
    Abstract: An ion exchanger includes a lower casing, an upper casing, and a cartridge. The lower casing includes an upper opening and a circumferential wall, which includes an intake port and a discharge port. The upper casing includes a lid, which is arranged on the opening of the lower casing, and a cylinder, which extends downward from the lid and is accommodated in the circumferential wall. The cartridge, which is provided integrally with the inner side of the cylinder, accommodates an ion exchange resin. The cylinder includes a communication hole, through which the inner side of the cylinder is in communication with the intake port. The upper casing includes an accumulation limiting structure that limits the air remaining immediately below the lower surface of the lid in the upper casing after flowing into the cylinder together with coolant.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: August 1, 2017
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Nobuhiko Nakagaki, Junko Ohira, Yuki Matsuda