Patents by Inventor Keisuke Shimizu

Keisuke Shimizu 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: 10717260
    Abstract: Provided is a manufacturing method of a laminated structure including a step of bonding a single layer or multiple layers of graphene formed on a first substrate to a second substrate through an adhesive layer including a delayed-curing UV curable resin by a roll-to-roll process.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: July 21, 2020
    Assignee: Sony Corporation
    Inventors: Keisuke Shimizu, Nozomi Kimura
  • Publication number: 20200227714
    Abstract: A battery pack includes a plurality of bus bars serving to form a plurality of parallel battery structures that each have parallel connection of two or more of a plurality of prismatic batteries. The plurality of bus bars electrically connect the plurality of prismatic batteries to connect the plurality of parallel battery structures in series. The plurality of parallel battery structures connected in series form a battery connection structure that includes a turn causing a reversal of direction of series connection of the plurality of parallel battery structures.
    Type: Application
    Filed: December 19, 2018
    Publication date: July 16, 2020
    Inventors: SHINYA MOTOKAWA, KEISUKE SHIMIZU, CHIFUMI MURAYAMA
  • Publication number: 20200212507
    Abstract: In an electricity storage system where each of electricity storage modules includes cells that are bound in a state where the cells are stacked in a row. A management device acquires detection values from sensors that are respectively mounted on the electricity storage modules so as to detect expansion or contraction of the cells in a stacking direction. The management device is configured to compare a detection value acquired from the sensor mounted on one electricity storage module to be inspected and detection values acquired from the sensors mounted on other electricity storage modules, and to detect an abnormality in one of the cells included in the one electricity storage module to be inspected.
    Type: Application
    Filed: July 11, 2018
    Publication date: July 2, 2020
    Inventors: KEISUKE SHIMIZU, TAKESHI NAGAO
  • Publication number: 20200203784
    Abstract: A battery module includes a first heat transfer component and a first thermal expansion material member that are disposed between the battery cells adjacent to each other. The first thermal expansion material member has a thermal conductivity lower than a thermal conductivity of the first heat transfer component and expands at a first predetermined temperature or higher, in which when temperature of the first thermal expansion material member is less than the first predetermined temperature, the adjacent battery cells are connected to each other via a high thermal conductive route including the first heat transfer component and having a first thermal conductivity, and in which when the temperature of the first thermal expansion material member reaches the first predetermined temperature or higher, the adjacent battery cells are connected to each other via a low thermal conductive route having a second thermal conductivity lower than the first thermal conductivity.
    Type: Application
    Filed: January 22, 2019
    Publication date: June 25, 2020
    Inventors: KEISUKE SHIMIZU, SHINYA MOTOKAWA, CHIFUMI MURAYAMA
  • Patent number: 10693112
    Abstract: A battery module includes: cells; and a battery holder made of a resin material that contains a filler in a resin matrix. In the resin material of the battery holder, the lower limit of the content of the filler is determined on the basis of the endothermic amount, and the upper limit of the content of the filler is determined on the basis of the viscosity. Another battery module includes: cylindrical cells; and a battery holder having a plurality of tubular first accommodation portions each having a substantially hexagonal hole and a plurality of tubular second accommodation portions each having a substantially polygonal (heptagonal or more) hole. In the battery holder, the first accommodation portions and second accommodation portions are arranged in a manner of log pile by sandwiching a first column including the first accommodation portions between second columns including the second accommodation portions.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: June 23, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takeshi Enomoto, Keisuke Shimizu
  • Patent number: 10644287
    Abstract: A battery module includes: a plurality of battery cells and a case for housing the plurality of battery cells. The case has a plurality of through-holes which are provided to a wall part forming an outer face of the battery module and via which gas ejected from at least one of the plurality of battery cells is discharged in a dispersed manner.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: May 5, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Keisuke Shimizu, Yoshihiro Shiotsu, Hiroshi Takasaki
  • Publication number: 20200105237
    Abstract: A sound absorber includes at least one cavity and at least one mouth to communicate the at least one cavity with an outside of the sound absorber. The at least one cavity includes a top surface, a bottom surface, and a side wall. The top surface includes the mouth. The bottom surface opposes the top surface. The side wall is extended to connect the top surface with the bottom surface. At least one of the top surface and the bottom surface is inclined with respect to the side wall.
    Type: Application
    Filed: December 3, 2019
    Publication date: April 2, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Masahiro ISHIDA, Naoki MATSUDA, Hiroshi ISHII, Kohta TAKENAKA, Keisuke SHIMIZU, Shogo SAKAMOTO, Takayuki ISAKA
  • Publication number: 20200099030
    Abstract: A battery module includes a plurality of cylindrical batteries that each include a safety valve surrounded by an annular breaking portion configured to break when internal pressure of each of the batteries exceeds a predetermined level. The battery module further includes an exhaust duct to guide gas emitted from the cylindrical battery to outside the module when safety valve is opened, and a gas direction regulator component disposed between the cylindrical batteries and the exhaust duct. The gas direction regulator component has a plurality of openings to expose the respective safety valves. Portions of the gas direction regulator component overhang areas overlapping the respective safety valves so as to cover an end of each safety valve opposite another end of each safety valve adjacent to an exit of the exhaust duct.
    Type: Application
    Filed: December 13, 2017
    Publication date: March 26, 2020
    Inventors: Keisuke SHIMIZU, Shinya MOTOKAWA, Daisuke KISHII, Akira TAKANO
  • Publication number: 20200067045
    Abstract: A battery module includes a partition wall to separate an upper space from a lower space, a first plate that defines the upper space together with the partition wall, and a second plate that is disposed above the first plate such that a gap is left between the first and second plates. A case has an opening that is formed to let the gap communicate with an outside of the case. The first plate has a through hole through which the upper space and the gap communicate. The battery module further includes a through path passing through the partition wall and each of the plates to let the lower space communicate with a space above the second plate. The upper space and the gap constitute an exhaust duct, while the lower space and a top space constitute a cooling duct.
    Type: Application
    Filed: December 13, 2017
    Publication date: February 27, 2020
    Inventors: AKIRA TAKANO, HIROSHI TAKATA, KEISUKE SHIMIZU
  • Patent number: 10559849
    Abstract: A glass-ceramic includes an oxide containing lithium (Li), silicon (Si), and boron (B) and has an X-ray diffraction spectrum with two or more peaks appearing in the range 20°?2??25° and with two or more peaks appearing in the range 25°<2??30°.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: February 11, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Keiko Furukawa, Tatsuya Furuya, Hideyuki Kumita, Sae Miyaji, Harumi Shibata, Masamitsu Suzuki, Go Sudo, Keisuke Shimizu
  • Patent number: 10540953
    Abstract: A sound absorber includes at least one cavity and at least one mouth to communicate the at least one cavity with an outside of the sound absorber. The at least one cavity includes a top surface, a bottom surface, and a side wall. The top surface includes the mouth. The bottom surface opposes the top surface. The side wall is extended to connect the top surface with the bottom surface. At least one of the top surface and the bottom surface is inclined with respect to the side wall.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: January 21, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Masahiro Ishida, Naoki Matsuda, Hiroshi Ishii, Kohta Takenaka, Keisuke Shimizu, Shogo Sakamoto, Takayuki Isaka
  • Patent number: 10541397
    Abstract: A battery includes a bottomed cylindrical case body that accommodates an electrode body and a bottom-portion insulating plate (19) that is disposed between the electrode body and a bottom portion of the case body. The bottom portion of the case body has a gas discharge port that opens when an internal pressure of the battery reaches a predetermined pressure. The bottom-portion insulating plate (19) has a through hole. An aperture ratio, which is a ratio of an area of the through hole with respect to a total area of the insulating plate, is greater than or equal to 10% and less than or equal to 40%. A Young's modulus of the bottom-portion insulating plate at 25° C. is 10 GPa or greater.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: January 21, 2020
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Masato Fujikawa, Tomohiko Yokoyama, Keisuke Shimizu, Takeshi Enomoto
  • Publication number: 20200020974
    Abstract: A solid-state battery that includes a cathode layer which occludes and discharges an electrode reactant ion, an anode layer which occludes and discharges the electrode reactant ion and partially faces the cathode layer, and a solid electrolyte layer between the cathode layer and the anode layer and including a high ion conductivity portion in a first region in which the cathode layer and the anode layer face each other, and a low ion conductivity portion facing the cathode layer in a second region in which the cathode layer and the anode layer do not face each other.
    Type: Application
    Filed: September 24, 2019
    Publication date: January 16, 2020
    Inventors: Keisuke Shimizu, Masamitsu Suzuki
  • Publication number: 20190393505
    Abstract: An all-solid-state battery that includes a cathode layer, an anode layer, and a solid electrolyte layer between the cathode layer and the anode layer. The anode layer contains a carbon material, and a volume occupancy of the carbon material in the anode layer is 50 vol % to 95 vol %.
    Type: Application
    Filed: August 27, 2019
    Publication date: December 26, 2019
    Inventors: Masamitsu Suzuki, Keisuke Shimizu, Tomohiro Kato, Norio Fukasawa, Motokazu Ishihara
  • Publication number: 20190384218
    Abstract: A housing includes at least one openable cover and at least one adjacent cover. The at least one openable cover swings on a hinge to separate an interior of the housing from an exterior of the housing. The at least one openable cover has a first side edge on a side of the hinge. The at least one adjacent cover is adjacent to the at least one openable cover. The at least one adjacent cover has a second side edge neighboring the first side edge of the at least one openable cover across a gap. One of the at least one openable cover and the at least one adjacent cover includes at least one projection projecting into the gap and another one of the at least one openable cover and the at least one adjacent cover includes a recess that accommodates the at least one projection in the gap.
    Type: Application
    Filed: August 30, 2019
    Publication date: December 19, 2019
    Applicant: Ricoh Company,Ltd.
    Inventors: Masahiro ISHIDA, Naoki MATSUDA, Keisuke SHIMIZU, Kohta TAKENAKA
  • Patent number: 10511002
    Abstract: A battery module includes: a case body for storing a plurality of cells each having an exhaust gas valve; an exhaust passage for releasing, to the outside of the case body, the high-pressure and high-temperature exhaust gas having come from the cells; and a flow route changing unit that is disposed in the exhaust passage, has a hole for passing the exhaust gas, and elongates the flow route of the exhaust gas from the upstream side to the downstream side of the exhaust passage by changing the flow direction of the exhaust gas a plurality of times in a zigzag manner along at least one of the width and height directions of the exhaust passage. The flow route changing unit includes a plurality of flat plates each having a hole for passing the exhaust gas.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: December 17, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Keisuke Shimizu, Daisuke Kishii, Takeshi Enomoto
  • Publication number: 20190363334
    Abstract: A battery module has a plurality of battery cells each including a cell case and a battery element contained in the cell case. The battery module includes a lead to electrically connect a terminal of each of the battery cells to a current collector and a heat shutoff mechanism to break electrical connection between the terminal and the current collector by heat from the cell case when the cell case reaches a predetermined temperature or higher.
    Type: Application
    Filed: November 8, 2017
    Publication date: November 28, 2019
    Inventors: SHINYA MOTOKAWA, YOSHITO KAGA, KEISUKE SHIMIZU
  • Patent number: 10444695
    Abstract: A housing includes at least one openable cover and at least one adjacent cover. The at least one openable cover swings on a hinge to separate an interior of the housing from an exterior of the housing. The at least one openable cover has a first side edge on a side of the hinge. The at least one adjacent cover is adjacent to the at least one openable cover. The at least one adjacent cover has a second side edge neighboring the first side edge of the at least one openable cover across a gap. One of the at least one openable cover and the at least one adjacent cover includes at least one projection projecting into the gap and another one of the at least one openable cover and the at least one adjacent cover includes a recess that accommodates the at least one projection in the gap.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: October 15, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Masahiro Ishida, Naoki Matsuda, Keisuke Shimizu, Kohta Takenaka
  • Publication number: 20190312577
    Abstract: A current blocking element is provided. The current blocking element includes a first electrode layer, an ion conductive layer, and a second electrode layer, which are laminated in this order, wherein the first electrode layer is configured to hold ions; the ion conductive layer has ionic conductivity and does not have electronic conductivity; and the second electrode layer is configured to hold ions. Ions held in the first electrode layer are moved to the second electrode layer when current is configured to flow between the first electrode layer and the second electrode layer. Current flow between the first electrode layer and the second electrode layer is blocked when ions held in one of the first and second electrode layers are depleted saturated.
    Type: Application
    Filed: June 13, 2019
    Publication date: October 10, 2019
    Inventors: Jusuke SHIMURA, Kenji KISHIMOTO, Masahiro MOROOKA, Keisuke SHIMIZU
  • Publication number: 20190288246
    Abstract: An all-solid-state battery that includes a battery element and an exterior material covering a surface of the battery element, wherein the exterior material includes one or more glass state materials and one or more crystalline state materials.
    Type: Application
    Filed: June 3, 2019
    Publication date: September 19, 2019
    Inventors: Tomohiro Kato, Keisuke Shimizu, Masamitsu Suzuki