Patents by Inventor Masaya Ugaji

Masaya Ugaji 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: 20210379999
    Abstract: Based on gradient information included in road information on a path scheduled to be traveled by an electric vehicle, a section divider divides the path into multiple sections. A discharge-plan-candidate deriving unit derives multiple discharge plans defined by a combination of a target SOC of a secondary battery at the time of departure and a target SOC at the time of arrival at a destination, based on required capacity of the secondary battery. A section deterioration-amount calculator calculates a deterioration rate or an amount of deterioration of the secondary battery in each of the sections based on an SOC usage range and an output current of the secondary battery in the corresponding one of the sections with reference to a discharge deterioration map defining a relationship between a combination of the SOC usage range in the corresponding one of the sections and a discharge rate, and the deterioration rate of the secondary battery.
    Type: Application
    Filed: October 3, 2019
    Publication date: December 9, 2021
    Inventors: Changhui YANG, Masaya UGAJI
  • Patent number: 11196129
    Abstract: A battery module includes a plurality of batteries stacked together, and a busbar. Each of the plurality of batteries includes a battery-side first structure and a battery-side second structure that regulate the connection of the battery and the busbar. The busbar has a busbar-side first structure and a busbar-side second structure that regulate the connection of the busbar and each of the batteries. If the battery-side first structures of the plurality of batteries are combined with the busbar-side first structure, and the battery-side second structures of the plurality of batteries are combined with the busbar-side second structure, each of the batteries is connected with the busbar. Alternatively, if the battery-side first structure of any one of the batteries is combined with the busbar-side second structure, the one of the batteries or another one of the batteries is not connected with the busbar.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: December 7, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tetsuji Omura, Masaya Ugaji
  • Publication number: 20200212404
    Abstract: A battery module includes: a plurality of batteries stacked together; and a busbar that electrically connects the plurality of batteries with each other. The busbar has: a main body that extends along axis X along which the batteries are stacked together; and a plurality of connectors that protrude from the main body along an axis that intersects with the axis along which the batteries are stacked together, and are electrically connected with terminals of the batteries, respectively. The plurality of batteries are divided into a plurality of battery units. Each of the plurality of battery units includes at least two of the plurality of batteries. The busbar connects the at least two of the plurality of batteries of each of the battery units with each other in parallel. The busbar connects the battery units with each other in series.
    Type: Application
    Filed: December 7, 2018
    Publication date: July 2, 2020
    Inventors: TETSUJI OMURA, MASAYA UGAJI
  • Publication number: 20200168883
    Abstract: A battery module includes a plurality of batteries stacked together, and a busbar. Each of the plurality of batteries includes a battery-side first structure and a battery-side second structure that regulate the connection of the battery and the busbar. The busbar has a busbar-side first structure and a busbar-side second structure that regulate the connection of the busbar and each of the batteries. If the battery-side first structures of the plurality of batteries are combined with the busbar-side first structure, and the battery-side second structures of the plurality of batteries are combined with the busbar-side second structure, each of the batteries is connected with the busbar. Alternatively, if the battery-side first structure of any one of the batteries is combined with the busbar-side second structure, the one of the batteries or another one of the batteries is not connected with the busbar.
    Type: Application
    Filed: December 7, 2018
    Publication date: May 28, 2020
    Inventors: TETSUJI OMURA, MASAYA UGAJI
  • Patent number: 10263290
    Abstract: It is an object of the present invention to provide a nonaqueous electrolyte secondary battery in which swelling due to charge-discharge cycling is inhibited. The nonaqueous electrolyte secondary battery including a flat electrode assembly in which a first electrode plate and a second electrode plate having a different polarity from the first electrode plate are wound with a separator provided therebetween.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: April 16, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Shunsuke Mitani, Satoshi Yamamoto, Yasunori Watanabe, Kentaro Takahashi, Masaki Deguchi, Yuta Ichikawa, Masaya Ugaji
  • Patent number: 9882251
    Abstract: Disclosed is an electronic device including: a component that generates heat while operating; a first battery capable of being charged and discharged; a second battery that is capable of being charged and discharged, and has a higher heat resistance than the first battery; and a housing accommodating the component, and providing a first space for accommodating the first battery and a second space for accommodating the second battery. The first space and the second space are arranged such that the temperature of the second battery becomes higher than that of the first battery on average, while the component is operating.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: January 30, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masaya Ugaji, Masaki Deguchi
  • Publication number: 20170170525
    Abstract: It is an object of the present invention to provide a nonaqueous electrolyte secondary battery in which swelling due to charge-discharge cycling is inhibited. The nonaqueous electrolyte secondary battery including a flat electrode assembly in which a first electrode plate and a second electrode plate having a different polarity from the first electrode plate are wound with a separator provided therebetween.
    Type: Application
    Filed: July 14, 2015
    Publication date: June 15, 2017
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Shunsuke Mitani, Satoshi Yamamoto, Yasunori Watanabe, Kentaro Takahashi, Masaki Deguchi, Yuta Ichikawa, Masaya Ugaji
  • Patent number: 9627682
    Abstract: A negative electrode for nonaqueous electrolyte secondary batteries includes a negative electrode core member and a negative electrode mixture layer attached to the negative electrode core member, wherein the negative electrode mixture layer contains negative electrode active material particles with a graphite structure and a binder, the mixture density of the negative electrode mixture layer is 1.5 g/cm3 to 1.8 g/cm3, the ratio I(002)/I(110) of the diffraction intensity I(002) of the (002) plane to the diffraction intensity I(110) of the (110) plane satisfies 60?I(002)/I(110)?120 as determined by measuring the negative electrode mixture layer by an X-ray diffraction method, the amount of particles with a size of 1 ?m to 10 ?m in the particle size distribution of a crushed product of the negative electrode mixture layer is 12% to 25% by volume.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: April 18, 2017
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Taiki Satow, Masaki Deguchi, Kentaro Takahashi, Masaya Ugaji
  • Patent number: 9425454
    Abstract: To provide a lithium secondary battery which has high capacity while maintaining excellent cycle characteristic. The lithium secondary battery cathode of the present invention includes a cathode collector formed of a conductive substance, and a cathode active material layer formed of a sintered lithium composite oxide sheet. The cathode active material layer is bonded to the cathode collector by the mediation of a conductive bonding layer. A characteristic feature of the present invention resides in that the cathode active material layer has a thickness of 30 ?m or more, a mean pore size of 0.1 to 5 ?m, and a voidage of 3% or more and less than 15%.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: August 23, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Ryuta Sugiura, Nobuyuki Kobayashi, Tsutomu Nanataki, Masaya Ugaji, Kaoru Nagata
  • Patent number: 9379375
    Abstract: To provide a lithium secondary battery which has high capacity while maintaining excellent cycle characteristic. The lithium secondary battery cathode of the present invention includes a cathode collector formed of a conductive substance, and a cathode active material layer formed of a sintered lithium composite oxide sheet. The cathode active material layer is bonded to the cathode collector by the mediation of a conductive bonding layer. A characteristic feature of the present invention resides in that the cathode active material layer has a thickness of 30 ?m or more, a voidage of 3 to 30%, and an open pore ratio of 70% or higher.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: June 28, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Ryuta Sugiura, Nobuyuki Kobayashi, Tsutomu Nanataki, Masaya Ugaji, Kaoru Nagata
  • Patent number: 9362550
    Abstract: Provided is a negative electrode for lithium ion secondary batteries, which can enhance the penetration of non-aqueous electrolyte, and can improve the input-output characteristics. The negative electrode includes a negative electrode core material sheet, and a negative electrode material mixture layer supported thereon. The negative electrode material mixture layer includes negative electrode active material particles, and a binder. The negative electrode material mixture layer has a plurality of pores interspersed on the surface and in the interior of the negative electrode material mixture layer. The pores have an average maximum diameter R of 45 to 125 ?m. The pores have a number density of 8 to 17 pores per 1 cm2 of the surface of the negative electrode material mixture layer or per 1 cm2 of a cross section in the plane direction of the negative electrode material mixture layer.
    Type: Grant
    Filed: November 22, 2012
    Date of Patent: June 7, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Taiki Satow, Shinji Kasamatsu, Masaya Ugaji
  • Publication number: 20160043389
    Abstract: It is an object of the present invention to provide a nonaqueous electrolyte secondary battery which inhibits the oxidative decomposition of an electrolytic solution in a high-temperature environment and has markedly improved high-temperature storage characteristics and cycle characteristics. The nonaqueous electrolyte secondary battery of the present invention includes a positive electrode plate containing a positive electrode active material, a negative electrode plate containing a negative electrode active material, and a nonaqueous electrolyte, in which the positive electrode active material is a lithium transition metal complex oxide, at least one selected from rare-earth hydroxide and rare-earth oxyhydroxide is present on a surface of the positive electrode active material, and the nonaqueous electrolyte contains a fluoroarene.
    Type: Application
    Filed: March 6, 2014
    Publication date: February 11, 2016
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Masaki DEGUCHI, Kentaro TAKAHASHI, Masaya UGAJI
  • Patent number: 9257717
    Abstract: In a wound electrode group, a positive electrode includes positive electrode active material layers formed on both surfaces of a band-like positive electrode current collector, and a negative electrode includes negative electrode active material layers on both surfaces of a band-like negative electrode current collector. Charge capacity of the negative electrode falls within a range of 83-99% of theoretical capacity of the negative electrode in a full charge state of a nonaqueous electrolyte secondary battery. An active material mass M1 per unit area of a negative electrode active material layer formed on an outer circumference of the negative electrode current collector, and an active material mass M2 per unit area of a negative electrode active material layer formed on an inner circumference satisfy a relational expression of M1/M2<(R1+t/2)/(R1?t/2), where the electrode group has an innermost diameter of R1, and the negative electrode has a thickness of t.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: February 9, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshiyuki Muraoka, Masaya Ugaji, Takahiro Aoyama, Haruya Nakai
  • Publication number: 20150318545
    Abstract: A negative electrode for nonaqueous electrolyte secondary batteries includes a negative electrode core member and a negative electrode mixture layer attached to the negative electrode core member, wherein the negative electrode mixture layer contains negative electrode active material particles with a graphite structure and a binder, the mixture density of the negative electrode mixture layer is 1.5 g/cm3 to 1.8 g/cm3, the ratio I(002)/I(110) of the diffraction intensity 1(002) of the (002) plane to the diffraction intensity I(110) of the (110) plane satisfies 60?I(002)/I(110)?120 as determined by measuring the negative electrode mixture layer by an X-ray diffraction method, the amount of particles with a size of 1 ?m to 10 ?m in the particle size distribution of a crushed product of the negative electrode mixture layer is 12% to 25% by volume.
    Type: Application
    Filed: December 24, 2013
    Publication date: November 5, 2015
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Taiki Satow, Masaki Deguchi, Kentaro Takahashi, Masaya Ugaji
  • Patent number: 9153817
    Abstract: Disclosed is a lithium ion secondary battery including: a positive electrode including a positive electrode active material layer comprising a positive electrode active material capable of absorbing and releasing lithium ions, and a positive electrode current collector; a negative electrode including a negative electrode active material layer comprising an alloy-formable active material, and a negative electrode current collector; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The positive electrode active material layer has an easily swellable resin having a degree of swelling with the non-aqueous electrolyte of 20% or more, and the negative electrode active material layer has a hardly swellable resin having a degree of swelling with the non-aqueous electrolyte of less than 20%.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: October 6, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tatsuki Hiraoka, Taisuke Yamamoto, Katsumi Kashiwagi, Masaya Ugaji
  • Patent number: 9059475
    Abstract: A negative electrode of a lithium secondary battery has a negative electrode active material including at least one element of silicon and tin. Capacities of the positive electrode and the negative electrode of the lithium secondary battery are set as follows. In a completely charged state of the lithium secondary battery charged by a predetermined charging method, the positive electrode active material and the negative electrode active material are in a first partially charged state, respectively. In a completely discharged state of the lithium secondary battery discharged by a predetermined discharging method, the negative electrode active material is in a second partially charged state.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: June 16, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masaya Ugaji, Kaoru Inoue, Takayuki Shirane
  • Patent number: 8888870
    Abstract: In order to enhance charge and discharge efficiency and to improve cycle characteristics by increasing a facing area between a positive electrode active material and a negative electrode active material, in a negative electrode for lithium secondary battery having a current collector and an active material layer carried on the current collector, the active material layer includes a plurality of columnar particles. The columnar particles include an element of silicon, and are tilted toward the normal direction of the current collector. Angle ? formed between the columnar particles and the normal direction of the current collector is preferably 10°??<90°.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: November 18, 2014
    Assignee: Panasonic Corporation
    Inventors: Yasutaka Kogetsu, Masaya Ugaji, Keiichi Takahashi, Shinji Mino, Nobuaki Nagao, Satoshi Shibutani, Kazuyoshi Honda
  • Publication number: 20140308582
    Abstract: Provided is a negative electrode for lithium ion secondary batteries, which can enhance the penetration of non-aqueous electrolyte, and can improve the input-output characteristics. The negative electrode includes a negative electrode core material sheet, and a negative electrode material mixture layer supported thereon. The negative electrode material mixture layer includes negative electrode active material particles, and a binder. The negative electrode material mixture layer has a plurality of pores interspersed on the surface and in the interior of the negative electrode material mixture layer. The pores have an average maximum diameter R of 45 to 125 ?m. The pores have a number density of 8 to 17 pores per 1 cm2 of the surface of the negative electrode material mixture layer or per 1 cm2 of a cross section in the plane direction of the negative electrode material mixture layer.
    Type: Application
    Filed: November 22, 2012
    Publication date: October 16, 2014
    Inventors: Taiki Satow, Shinji Kasamatsu, Masaya Ugaji
  • Publication number: 20140162112
    Abstract: Disclosed is an electronic device including: a component that generates heat while operating; a first battery capable of being charged and discharged; a second battery that is capable of being charged and discharged, and has a higher heat resistance than the first battery; and a housing accommodating the component, and providing a first space for accommodating the first battery and a second space for accommodating the second battery. The first space and the second space are arranged such that the temperature of the second battery becomes higher than that of the first battery on average, while the component is operating.
    Type: Application
    Filed: August 3, 2012
    Publication date: June 12, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Masaya Ugaji, Masaki Deguchi
  • Publication number: 20140141305
    Abstract: In a wound electrode group, a positive electrode 10 includes positive electrode active material layers formed on both surfaces of a band-like positive electrode current collector, and a negative electrode includes negative electrode active material layers on both surfaces of a band-like negative electrode current collector. Charge capacity of the negative electrode falls within a range of 83-99% of theoretical capacity of the negative electrode in a full charge state of a nonaqueous electrolyte secondary battery. An active material mass M1 per unit area of a negative electrode active material layer formed on an outer circumference of the negative electrode current collector, and an active material mass M2 per unit area of a negative electrode active material layer formed on an inner circumference satisfy a relational expression of M1/M2<(R1+t/2)/(R1?t/2), where the electrode group has an innermost diameter of R1, and the negative electrode has a thickness of t.
    Type: Application
    Filed: April 3, 2012
    Publication date: May 22, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Yoshiyuki Muraoka, Masaya Ugaji, Takahiro Aoyama, Haruya Nakai