Patents by Inventor Hideyasu Takatsuji

Hideyasu Takatsuji 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: 20200220148
    Abstract: A battery case that includes an outer case that houses a battery, and an output terminal on an outer side of the outer case and having a first flat plate portion defining a first bolt insertion hole, and a second flat plate portion orthogonal to the first flat plate portion. The battery case and the output terminal define therebetween a first nut holding portion configured to hold a nut between the second flat plate portion of the output terminal and the first nut holding portion, the first nut holding portion having a sloped shape where a distance between the first nut holding portion and the second flat plate portion of the output terminal is shorter on a back side than on a front side thereof along a nut insertion direction.
    Type: Application
    Filed: March 16, 2020
    Publication date: July 9, 2020
    Inventor: Hideyasu Takatsuji
  • Publication number: 20200020904
    Abstract: A battery pack having a plurality of laminated batteries between a pair of restraint plates that each have a battery positioning portion for determining positions of the plurality of laminated batteries and that sandwich the plurality of laminated batteries, and a band around a central portion of a stacked structure of the plurality of laminated batteries and the pair of restraint plates and that fastens the stacked structure at the central portion.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 16, 2020
    Inventor: Hideyasu Takatsuji
  • Patent number: 9337518
    Abstract: A battery state monitoring device includes a substrate in which a through-hole disposed to be opposite to a safety valve of a battery is formed, a sensor which includes a positive electrode end and a negative electrode end and which is provided on the substrate, a first interconnector which is connected to the positive electrode end of the sensor on the substrate and which is disposed to pass along a part of a periphery of the through-hole, and a second interconnector which is connected to the negative electrode end of the sensor on the substrate and which is disposed to pass along a part of the periphery of the through-hole. The first interconnector and the second interconnector are disposed to extend along each other at the periphery of the through-hole.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: May 10, 2016
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Hideyasu Takatsuji
  • Publication number: 20150263396
    Abstract: A battery state monitoring device (3) is provided with: a substrate (100) that is provided with a terminal insertion hole (111B) into which an electrode terminal (75) of a battery (2) is inserted; a stator (141B) which is formed of a heat conductive material, is provided around the terminal insertion hole (111B), and is fitted to the electrode terminal (75) so as to be in contact with the electrode terminal (75) in a state where the electrode terminal (75) is inserted into the terminal insertion hole (111B); and a temperature measuring element (151) which is affixed to the substrate (100) and measures the temperature of the electrode terminal (75) through the stator (141B).
    Type: Application
    Filed: December 5, 2013
    Publication date: September 17, 2015
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Tsuyoshi Kitamura, Mitsufumi Goto, Tetsuro Shigemizu, Kohei Kawazoe, Naohiko Matsuda, Hideyasu Takatsuji, Takehiko Nishida
  • Patent number: 8786260
    Abstract: There is provided a method of thermally controlling an electric storage device. The method comprises increasing cooling medium supplied to the electric storage as an electric charge stored in the electric storage device increases. According to the method, by increasing the cooling medium supplied to the electric storage device as an electric charge stored in the electric storage device increases, the electric storage device may be kept at a temperature that increases the efficiency of charging or discharging the electric storage device. It is asserted to be more efficient to lower the temperature of the electric storage device when more electric charge is stored in the electric storage device. Also, an adequate amount of the cooling medium may be supplied to the electric storage. As a result, the overall efficiency of the electric system may be improved.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: July 22, 2014
    Assignee: Mazda Motor Corporation
    Inventors: Hideyasu Takatsuji, Michio Yoshino, Seiji Sadahira
  • Publication number: 20140176141
    Abstract: A battery state monitoring device includes a substrate in which a through-hole disposed to be opposite to a safety valve of a battery is formed, a sensor which includes a positive electrode end and a negative electrode end and which is provided on the substrate, a first interconnector which is connected to the positive electrode end of the sensor on the substrate and which is disposed to pass along a part of a periphery of the through-hole, and a second interconnector which is connected to the negative electrode end of the sensor on the substrate and which is disposed to pass along a part of the periphery of the through-hole. The first interconnector and the second interconnector are disposed to extend along each other at the periphery of the through-hole.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 26, 2014
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Hideyasu Takatsuji
  • Publication number: 20130297244
    Abstract: An object of the present invention is to provide a secondary battery lifetime prediction apparatus, a battery system and a secondary battery lifetime prediction method that allow a more accurate lifetime prediction for a secondary battery.
    Type: Application
    Filed: February 17, 2011
    Publication date: November 7, 2013
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Hideyasu Takatsuji
  • Publication number: 20130257464
    Abstract: A battery system includes: a first battery cell; a second battery cell; a power load supplied with current from the first battery cell and the second battery cell; a connection which electrically connects a negative electrode terminal of the first battery cell and a positive electrode terminal of the second battery cell; a connection which electrically connects the first negative electrode terminal and the second positive electrode terminal; a cell balancing circuit which causes electromotive voltages of the first battery cell and the second battery cell to be substantially equal; and a controller, wherein the controller enables the current to be supplied to the power load after causing the electromotive voltages of the first battery cell and the second battery cell to be substantially equal, thereby determining looseness of the connection.
    Type: Application
    Filed: December 8, 2011
    Publication date: October 3, 2013
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Hideyasu Takatsuji
  • Patent number: 7462421
    Abstract: A positive electrode active material for a lithium ion secondary battery is a lithium-containing composite oxide represented by the chemical formula: Lia(Co1-x-yMgxAly)bMzOc, where M is at least one element selected from the group consisting of Na and K, and the values a, b, c, x, y and z respectively satisfy 0?a?1.05, 0.005?x?0.15, 0.0001?y?0.01, 0.0002?z?0.008, 0.85?b?1.1 and 1.8?c?2.1. This makes it possible to improve a high temperature storage characteristics and safety of the lithium ion secondary battery.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: December 9, 2008
    Assignee: Panasonic Corporation
    Inventors: Hideyasu Takatsuji, Masaya Okochi, Yosuke Kita, Ryoichi Tanaka, Shoichiro Watanabe
  • Publication number: 20080012535
    Abstract: There is provided a method of thermally controlling an electric storage device. The method comprises increasing cooling medium supplied to the electric storage as an electric charge stored in the electric storage device increases. According to the method, by increasing the cooling medium supplied to the electric storage device as an electric charge stored in the electric storage device increases, the electric storage device may be kept at a temperature that increases the efficiency of charging or discharging the electric storage device. It is asserted to be more efficient to lower the temperature of the electric storage device when more electric charge is stored in the electric storage device. Also, an adequate amount of the cooling medium may be supplied to the electric storage. As a result, the overall efficiency of the electric system may be improved.
    Type: Application
    Filed: June 27, 2007
    Publication date: January 17, 2008
    Applicant: Mazda Motor Corporation
    Inventors: Hideyasu Takatsuji, Michio Yoshino, Seiji Sadahira
  • Publication number: 20040157125
    Abstract: A positive electrode active material for a lithium ion secondary battery is a lithium-containing composite oxide represented by the chemical formula: Lia(Co1-x-yMgxAly)bMzOc, where M is at least one element selected from the group consisting of Na and K, and the values a, b, c, x, y and z respectively satisfy 0≦a≦1.05, 0.005≦x≦0.15, 0.0001≦y≦0.01, 0.0002≦z≦0.008, 0.85≦b≦1.1 and 1.8≦c≦2.1.
    Type: Application
    Filed: February 5, 2004
    Publication date: August 12, 2004
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Hideyasu Takatsuji, Masaya Okochi, Yosuke Kita, Ryoichi Tanaka, Shoichiro Watanabe