Patents by Inventor Yuma Yamaguchi

Yuma Yamaguchi 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: 11446984
    Abstract: A cooling system is provided to cool fluid used in a device mounted on a vehicle, by exchanging heat with cooler cooling water in a cooler. The system includes a cooling water passage connected to the cooler and having an undercover cooling water passage provided to an undercover, a cooler radiator configured to cool the cooler cooling water by exchanging heat between the cooler cooling water and air flowing into an engine bay from a grille, a flow rate adjuster configured to adjust a flow rate of the cooler cooling water supplied the undercover cooling water passage, and a controller configured to acquire at least a pressure or a temperature of the fluid, and control the flow rate adjuster to increase the flow rate of the cooler cooling water supplied to the undercover cooling water passage based on an increase in the pressure or the temperature of the fluid.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: September 20, 2022
    Assignee: Mazda Motor Corporation
    Inventors: Yuma Yamaga, Yusuke Koike, Takafumi Tanehira, Yusuke Mikuni, Kanichi Yamaguchi, Katsutoshi Taninaka
  • Patent number: 11011806
    Abstract: A cylindrical battery with an electrode body in which a negative electrode plate and a positive electrode plate connected to a plurality of positive electrode leads are rolled with a separator interposed therebetween, a first insulating plate disposed on the electrode body, a current-collection plate disposed on the first insulating plate, a second insulating plate disposed in contact with an opposite surface of the current-collection plate that opposes the first insulating plate, a sealing body, and an outer jacket can, wherein the first insulating plate has at least one through hole, the first positive electrode lead passes through the through hole and between the first insulating plate and the second insulating plate, is bent from the outer-circumference portion of the current-collection plate onto the current-collection plate and the second insulating plate is provided with a recessed portion to house the first positive electrode lead.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: May 18, 2021
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Takahiro Fukuoka, Shuichi Yamashita, Yuma Yamaguchi, Hiromichi Wakabayashi
  • Publication number: 20200136097
    Abstract: A cylindrical battery including an electrode body in which a positive electrode plate and a negative electrode plate with a separator between the electrodes are wound; an electrolyte; a bottomed cylindrical exterior can that houses the electrode body and the electrolyte; and an opening sealing body. The opening sealing body includes a terminal cap, a valve disc included in a current cut-off mechanism, and a washer having an opening at a center, interposed between the terminal cap and the valve disc, the washer has a recessed section formed in surroundings of the opening and a planar section disposed in surroundings of the recessed section on each of surfaces at both ends in a thickness direction of the washer, and boundary lines each between the recessed section and the planar section of each of the surfaces of the washer are arranged to be overlapped with each other in the thickness direction.
    Type: Application
    Filed: July 18, 2018
    Publication date: April 30, 2020
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Yuma Yamaguchi, Shuichi Yamashita, Takahiro Fukuoka
  • Publication number: 20200044226
    Abstract: A cylindrical battery with an electrode body in which a negative electrode plate and a positive electrode plate connected to a plurality of positive electrode leads are rolled with a separator interposed therebetween, a first insulating plate disposed on the electrode body, a current-collection plate disposed on the first insulating plate, a second insulating plate disposed in contact with an opposite surface of the current-collection plate that opposes the first insulating plate, a sealing body, and an outer jacket can, wherein the first insulating plate has at least one through hole, the first positive electrode lead passes through the through hole and between the first insulating plate and the second insulating plate, is bent from the outer-circumference portion of the current-collection plate onto the current-collection plate and the second insulating plate is provided with a recessed portion to house the first positive electrode lead.
    Type: Application
    Filed: March 22, 2018
    Publication date: February 6, 2020
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Takahiro Fukuoka, Shuichi Yamashita, Yuma Yamaguchi, Hiromichi Wakabayashi
  • Patent number: 10461304
    Abstract: A cylindrical battery including an electrode body in which a negative electrode plate and a positive electrode plate to which a plurality of positive electrode leads is connected are wound with a separator interposed therebetween; an upper insulating plate disposed on the electrode body; a positive electrode current collector plate disposed on the upper insulating plate; a sealing body; and an outer can. A first positive electrode lead extends between the upper insulating plate and the current collector plate after passing through a through-hole of the upper insulating plate and is bent onto the current collector plate at an outer circumference portion thereof, and a second positive electrode lead extends along the outside of an outer circumference portion of the upper insulating plate and is bent onto the current collector plate at the outer circumference portion thereof. Those positive electrode leads are all connected to the current collector plate.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: October 29, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Takahiro Fukuoka, Shuichi Yamashita, Yuma Yamaguchi, Kyosuke Miyata
  • Patent number: 10263237
    Abstract: A cylindrical battery according to one aspect of the present invention includes an electrode body in which a negative electrode plate and a positive electrode plate to which a plurality of positive electrode leads is connected are wound with a separator interposed therebetween; an electrolyte liquid; a cylindrical outer can having a bottom portion which receives the electrode body and the electrolyte liquid; and a sealing body sealing an open portion of the outer can. The positive electrode leads extend along an outer circumference portion of a collector member disposed on the electrode body and are connected to a surface of the collector member at an outer side of the battery. The collector member includes a collector plate to which the positive electrode leads are connected and a first insulating plate fitted to a surface of the collector plate at an inner side of the battery.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: April 16, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Yuma Yamaguchi, Takahiro Fukuoka, Shuichi Yamashita, Kyosuke Miyata
  • Patent number: 10069118
    Abstract: A sealing body of a battery includes a positive electrode cap, a safety valve electrically connected to the positive electrode cap, a plurality of protrusions that are disposed annularly and intermittently on the outer peripheral side of a conductive contact part of the safety valve and that are each formed so as to be inclined toward the center of the sealing body, and an insulating member that covers at least top parts of the plurality of protrusions, side surfaces thereof on the center side, and a surface of the safety valve on the center side, that is fitted to the center side of the plurality of protrusions, whose vertical sectional shape is bent in a Z-shape. A terminal plate is fitted and fixed to the center side of the insulating member and is connected by welding to the conductive contact portion through a central opening of the insulating member.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: September 4, 2018
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Kenji Yamato, Shuichi Yamashita, Yuma Yamaguchi, Takahiro Fukuoka
  • Publication number: 20180130994
    Abstract: A cylindrical battery according to one aspect of the present invention includes an electrode body in which a negative electrode plate and a positive electrode plate to which a plurality of positive electrode leads is connected are wound with a separator interposed therebetween; an electrolyte liquid; a cylindrical outer can having a bottom portion which receives the electrode body and the electrolyte liquid; and a sealing body sealing an open portion of the outer can. The positive electrode leads extend along an outer circumference portion of a collector member disposed on the electrode body and are connected to a surface of the collector ember at an outer side of the battery. The collector member includes a collector plate to which the positive electrode leads are connected and a first insulating plate fitted to a surface of the collector plate at an inner side of the battery.
    Type: Application
    Filed: March 18, 2016
    Publication date: May 10, 2018
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Yuma Yamaguchi, Takahiro Fukuoka, Shuichi Yamashita, Kyosuke Miyata
  • Publication number: 20170346064
    Abstract: A cylindrical battery including an electrode body in which a negative electrode plate and a positive electrode plate to which a plurality of positive electrode leads is connected are wound with a separator interposed therebetween; an upper insulating plate disposed on the electrode body; a positive electrode current collector plate disposed on the upper insulating plate; a sealing body; and an outer can. A first positive electrode lead extends between the upper insulating plate and the current collector plate after passing through a through-hole of the upper insulating plate and is bent onto the current collector plate at an outer circumference portion thereof, and a second positive electrode lead extends along the outside of an outer circumference portion of the upper insulating plate and is bent onto the current collector plate at the outer circumference portion thereof. Those positive electrode leads are all connected to the current collector plate.
    Type: Application
    Filed: November 27, 2015
    Publication date: November 30, 2017
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Takahiro Fukuoka, Shuichi Yamashita, Yuma Yamaguchi, Kyosuke Miyata
  • Patent number: 9806323
    Abstract: A sealing body according to the present invention is sealing body for a sealed battery including conductive terminal cap, a conductive explosion-proof valve electrically connected to the terminal cap, a conductive terminal plate having an abutting surface abutting the explosion-proof valve, and an insulating plate disposed between the explosion-proof valve and the terminal plate. A welded part between the explosion-proof valve and the terminal plate is formed in the inner part of the abutting surface, and the plan-view shape of the welded part is a shape defining an enclosed region, a C-shape, or a spiral shape. A notch part surrounding the welded part is formed in the terminal plate. The breaking pressure of the welded part is higher than the breaking pressure of the notch part.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: October 31, 2017
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Takahiro Fukuoka, Shuichi Yamashita, Yuma Yamaguchi, Yuki Iida
  • Publication number: 20160285071
    Abstract: A sealing body according to the present invention is sealing body for a sealed battery including conductive terminal cap, a conductive explosion-proof valve electrically connected to the terminal cap, a conductive terminal plate having an abutting surface abutting the explosion-proof valve, and an insulating plate disposed between the explosion-proof valve and the terminal plate. welded part between the explosion-proof valve and the terminal plate is formed in the inner part of the abutting surface, and the plan-view shape of the welded part is a shape defining an enclosed region, a C-shape, or a spiral shape. A notch part surrounding the welded part is formed in the terminal plate. The breaking pressure of the welded part is higher than the breaking pressure of the notch part.
    Type: Application
    Filed: October 27, 2014
    Publication date: September 29, 2016
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Takahiro FUKUOKA, Shuichi YAMASHITA, Yuma YAMAGUCHI, Yuki IIDA
  • Publication number: 20150333313
    Abstract: A sealing body of a battery includes a positive electrode cap, a safety valve electrically connected to the positive electrode cap, a plurality of protrusions that are disposed annularly and intermittently on the outer peripheral side of a conductive contact part of the safety valve and that are each formed so as to be inclined toward the center of the sealing body, and an insulating member that covers at least top parts of the plurality of protrusions, side surfaces thereof on the center side, and a surface of the safety valve on the center side, that is fitted to the center side of the plurality of protrusions, whose vertical sectional shape is bent in a Z-shape. A terminal plate is fitted and fixed to the center side of the insulating member and is connected by welding to the conductive contact portion through a central opening of the insulating member.
    Type: Application
    Filed: December 12, 2013
    Publication date: November 19, 2015
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Kenji Yamato, Shuichi Yamashita, Yuma Yamaguchi, Takahiro Fukuoka
  • Publication number: 20140038005
    Abstract: An object of the present invention is to manufacture a sealed cell having a highly conductive sealing body with a safety valve at high productivity. In order to accomplish above object, the present invention espouses a method of manufacturing a sealed cell including: preparing a terminal cap and a safety valve, the terminal cap including an external terminal projecting toward the outside of the cell, and a flange, and the safety valve including a conductive contact portion projecting toward the inside of the cell, and a peripheral portion and having an outer periphery bent toward the outside of the cell so as to form a bent portion; temporarily fixing the safety valve and the terminal cap together at the bent portion after coupling the safety valve and the terminal cap to each other; and conductively adhering the flange and the peripheral portion to each other near the bent portion.
    Type: Application
    Filed: April 25, 2012
    Publication date: February 6, 2014
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Kenji Yamato, Syuichi Yamashita, Yuma Yamaguchi