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).

  • Publication number: 20240237221
    Abstract: A method for manufacturing a wiring substrate includes forming conductor pads on a surface of an insulating layer, positioning, on or in the insulating layer, an electronic component having electrode pads, forming a second insulating layer covering the surface of the insulating layer, conductor pads and electronic component, forming first via holes exposing the conductor pads, applying a first desmear treatment to the second insulating layer such that residues are removed from the first via holes, forming second via holes in the second insulating layer after the first desmear treatment such that the second via holes expose the electrode pads of the electronic component positioned on or in the insulating layer, applying a second desmear treatment to the second insulating layer such that residues are removed from the second via holes, forming first via conductors in the first via holes, and forming second via conductors in the second via holes.
    Type: Application
    Filed: October 19, 2023
    Publication date: July 11, 2024
    Applicant: IBIDEN CO., LTD.
    Inventors: Shogo FUKUI, Ryo ANDO, Keisuke SHIMIZU
  • Publication number: 20240234855
    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: March 20, 2024
    Publication date: July 11, 2024
    Inventors: Shinya MOTOKAWA, Keisuke SHIMIZU, Chifumi MURAYAMA
  • Publication number: 20240237204
    Abstract: A wiring substrate includes a first wiring part including a first insulating layer and a first conductor layer laminated on the first insulating layer, and a second wiring part including a second insulating layer and a second conductor layer laminated on the second insulating layer. The thickness of the second insulating layer is smaller than that of the first insulating layer. The thickness of the second conductor layer is smaller than that of the first conductor layer. The first conductor layer includes first wirings including differential wirings having the minimum wiring width of larger than 5 ?m and minimum inter-wiring distance of larger than 7 ?m. The second conductor layer includes second wirings having the maximum wiring width of 5 ?m or less and the maximum inter-wiring distance of 7 ?m or less. The second part is positioned closer to the outermost surface of the substrate than the first part.
    Type: Application
    Filed: January 10, 2024
    Publication date: July 11, 2024
    Applicant: IBIDEN CO., LTD.
    Inventors: Keisuke SHIMIZU, Fumio NISHIWAKI, Ryoya KIMURA
  • Publication number: 20240234326
    Abstract: A wiring substrate includes first conductor pads formed on a surface of an insulating layer, second conductor pads formed on the surface of the insulating layer, a second insulating layer covering the surface of the insulating layer and first and second conductor pads, first via conductors formed in first via holes penetrating through the second insulating layer such that the first via conductors are formed on the first conductor pads, and second via conductors formed in second via holes penetrating through the second insulating layer such that the second via conductors are formed on the second conductor pads. The first and second conductor pads are formed such that an annular width amount of each second conductor pad is smaller than an annular width amount of each first conductor pad and that a haloing amount in each second conductor pad is smaller than a haloing amount in each first conductor pad.
    Type: Application
    Filed: October 19, 2023
    Publication date: July 11, 2024
    Applicant: IBIDEN CO., LTD.
    Inventors: Ikuya TERAUCHI, Shogo FUKUI, Ryo ANDO, Keisuke SHIMIZU
  • Publication number: 20240237203
    Abstract: A wiring substrate includes a first wiring part including a first insulating layer and a first conductor layer laminated on the first insulating layer, and a second wiring part formed on the first part and including a second insulating layer and a second conductor layer laminated on the second insulating layer. The thickness of the second insulating layer is smaller than that of the first insulating layer. The thickness of the second conductor layer is smaller than that of the first conductor layer. The first conductor layer has a surface on the opposite side with respect to the first insulating layer such that the arithmetic mean roughness of the surface is smaller than that of a surface of the second conductor layer on the opposite side with respect to the second insulating layer. The second part is positioned closer to the outermost surface of the substrate than the first part.
    Type: Application
    Filed: January 10, 2024
    Publication date: July 11, 2024
    Applicant: IBIDEN CO., LTD.
    Inventors: Keisuke SHIMIZU, Fumio NISHIWAKI, Ryoya KIMURA
  • Patent number: 11996834
    Abstract: A current blocking element assembly is provided and includes first and second current blocking elements, first current blocking element including: first-A electrode layer configured to hold ions; first ion conductive layer configured to conduct ions and does not have electronic conductivity; and second-A electrode layer configured to hold ions, first-A electrode layer, first ion conductive layer, and second-A electrode layer laminated in order, second current blocking element including: first-B electrode layer configured to hold ions; second ion conductive layer configured to conduct ions and does not have electronic conductivity; and second-B electrode layer configured to hold ions, first-B electrode layer, second ion conductive layer, and second-B electrode layer laminated in order, wherein the second-A electrode layer and the second-B electrode layer are electrically connected.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: May 28, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Jusuke Shimura, Kenji Kishimoto, Masahiro Morooka, Keisuke Shimizu
  • Publication number: 20240162546
    Abstract: A power storage module includes: at least one cylindrical power storage device; and an upper holder that holds the power storage device in an axial direction. The upper holder includes a container that houses the power storage device and a hole that penetrates the upper holder along an axial direction around the container. A distance between the container and the hole in plan view is smaller than a distance between the container and the adjacent container in plan view or a distance between the container and an edge of the upper holder in plan view.
    Type: Application
    Filed: March 23, 2022
    Publication date: May 16, 2024
    Inventors: TATSUYA HIRANO, HIROSHI TAKASAKI, MOMOKO HIRANUMA, KEISUKE SHIMIZU
  • Publication number: 20240138071
    Abstract: A method for manufacturing a wiring substrate includes forming conductor pads on a surface of an insulating layer, positioning, on or in the insulating layer, an electronic component having electrode pads, forming a second insulating layer covering the surface of the insulating layer, conductor pads and electronic component, forming first via holes exposing the conductor pads, applying a first desmear treatment to the second insulating layer such that residues are removed from the first via holes, forming second via holes in the second insulating layer after the first desmear treatment such that the second via holes expose the electrode pads of the electronic component positioned on or in the insulating layer, applying a second desmear treatment to the second insulating layer such that residues are removed from the second via holes, forming first via conductors in the first via holes, and forming second via conductors in the second via holes.
    Type: Application
    Filed: October 18, 2023
    Publication date: April 25, 2024
    Applicant: IBIDEN CO., LTD.
    Inventors: Shogo FUKUI, Ryo ANDO, Keisuke SHIMIZU
  • Publication number: 20240136294
    Abstract: A wiring substrate includes first conductor pads formed on a surface of an insulating layer, second conductor pads formed on the surface of the insulating layer, a second insulating layer covering the surface of the insulating layer and first and second conductor pads, first via conductors formed in first via holes penetrating through the second insulating layer such that the first via conductors are formed on the first conductor pads, and second via conductors formed in second via holes penetrating through the second insulating layer such that the second via conductors are formed on the second conductor pads. The first and second conductor pads are formed such that an annular width amount of each second conductor pad is smaller than an annular width amount of each first conductor pad and that a haloing amount in each second conductor pad is smaller than a haloing amount in each first conductor pad.
    Type: Application
    Filed: October 18, 2023
    Publication date: April 25, 2024
    Applicant: IBIDEN CO., LTD.
    Inventors: Ikuya TERAUCHI, Shogo FUKUI, Ryo ANDO, Keisuke SHIMIZU
  • Patent number: 11967690
    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: Grant
    Filed: December 19, 2018
    Date of Patent: April 23, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shinya Motokawa, Keisuke Shimizu, Chifumi Murayama
  • Publication number: 20230411768
    Abstract: Battery pack (10) as an example of an exemplary embodiment includes: a plurality of batteries (50); and case (60) including case body (20) housing the plurality of batteries (50) and case lid (30) covering opening (22) of case body (20). Case (60) is configured such that when the internal pressure increases due to generation of gas, case body (20) and case lid (30) are relatively displaced in directions away from each other and a gas exhaust opening is formed in a state that a coupling between case body (20) and case lid (30) is maintained.
    Type: Application
    Filed: August 3, 2021
    Publication date: December 21, 2023
    Inventors: KEISUKE SHIMIZU, YASUAKI SAKAGAWA
  • Patent number: 11811039
    Abstract: A battery pack includes a battery stack having a plurality of prismatic batteries being stacked. The battery pack further includes a cooling plate extending in a stack direction of the prismatic batteries in the battery stack. The cooling plate includes a plurality of coolant passages and a plurality of grooves. The coolant passages extend in a perpendicular direction substantially perpendicular to the stack direction of the prismatic batteries, and allow a coolant to flow in the coolant passages. The grooves constitute heat conduction inhibitors configured to inhibit heat conduction in the stack direction of the prismatic batteries.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: November 7, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Chifumi Murayama, Shinya Motokawa, Keisuke Shimizu
  • Patent number: 11811100
    Abstract: A cell module includes a plurality of battery cells each having a safety valve at a first end in a height direction, a first current collector plate including a main body having a through hole that at least partly overlaps the safety valve when viewed along the height direction and a lead extending into the through hole from the main body and being electrically connected to a first terminal of each of the battery cells, an exhaust duct disposed over a surface of the first current collector plate remote from the battery cells, and an insulating film being made of an insulating material and covering an area of the first current collector plate facing the exhaust duct. The safety valve opens when an internal pressure of any of the battery cells reaches or exceeds a predetermined level.
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: November 7, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Shinya Motokawa, Daisuke Kishii, Keisuke Shimizu, Akira Takano
  • Publication number: 20230318120
    Abstract: A device is adapted for use with a battery pack including a plurality of batteries and a case including an exhaust hole and a sealing member closing the exhaust hole, and is configured to discharge gas from case. The device includes: a pedestal on which the battery pack is to be placed; a gas inlet hole formed in the pedestal at a location overlapping the exhaust hole of the battery pack; a discharge duct being a vent path formed in the pedestal and communicating with the gas inlet hole, for guiding the gas discharged from the battery pack to outside of the device; and a pressing part protruding from the gas inlet hole, the pressing part configured to press the sealing member of the battery pack.
    Type: Application
    Filed: August 3, 2021
    Publication date: October 5, 2023
    Inventors: KEISUKE SHIMIZU, YASUAKI SAKAGAWA
  • Publication number: 20230299339
    Abstract: A solid state battery that includes: a battery element including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer; an end-face electrode facing the end surface of the battery element; a covering layer covering the battery element with the end-face electrode; and an insulating buffer layer between the covering layer and the battery element and surrounding the battery element, wherein the insulating buffer layer is also sandwiched between the battery element and the end-face electrode and arranged intermittently on an end-face electrode facing region side of the end surface of the battery element.
    Type: Application
    Filed: May 22, 2023
    Publication date: September 21, 2023
    Inventors: Takahiro HAYAKAWA, Keisuke SHIMIZU
  • Patent number: 11764395
    Abstract: An all-solid-state battery that includes a power storage part having a positive electrode layer, a negative electrode layer, and an electrolyte layer interposed between the positive electrode layer and the negative electrode layer; an internal electrode at an end surface of the power storage part; an electrode extraction part electrically connected to the internal electrode; a buffer layer covering the power storage part, the internal electrode, and a first part of the electrode extraction part; a barrier layer covering the buffer layer; and an impact-resistant layer covering the barrier layer such that a second part of the electrode extraction part extends from the impact-resistant layer.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: September 19, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Tomohiro Kato, Hiroe Ishihara, Kiyoshi Kumagae, Keisuke Shimizu
  • Publication number: 20230291065
    Abstract: A battery pack according to an aspect of the present disclosure includes a secondary battery and a battery case that houses the secondary battery. The battery case includes an exhaust section that exhausts gas exhausted from the secondary battery to outside of the battery case. The exhaust section includes at least one slit that is opened along with deformation of the exhaust section occurring in accordance with an increase in pressure in the battery case. In the exhaust section, the slits preferably reversibly operate due to the pressure in the battery case.
    Type: Application
    Filed: September 13, 2021
    Publication date: September 14, 2023
    Inventors: YASUAKI SAKAGAWA, KEISUKE SHIMIZU
  • Publication number: 20230275317
    Abstract: A battery case includes: an inner case that includes an inner gas discharge hole for discharging the gas generated in batteries accommodated in a battery accommodating chamber to the outside of the battery accommodating chamber; an outer case that has an inner case accommodating chamber accommodating the inner case and includes an outer gas discharge hole for discharging the gas to the outside; a plurality of ribs that extend from the outer surface of the inner case to the inner surface of the outer case, to position the inner case with respect to the outer case, and are arranged at intervals from each other; and one or more gas guide passages defined by an outer surface of the inner case, an inner surface of the outer case, and the plurality of ribs and configured to guide a gas from the inner gas discharge hole to the outer gas discharge hole.
    Type: Application
    Filed: July 9, 2021
    Publication date: August 31, 2023
    Inventors: KEISUKE SHIMIZU, KATSUSHI ISHIZAKA
  • Publication number: 20230275311
    Abstract: A battery case includes: a battery container including a battery containing chamber containing a plurality of batteries, and an inner gas discharge hole for discharging a gas generated in the batteries on at least one side in a height direction of the batteries fixed to the battery containing chamber; and one or more gas exhaust passages including first and second corner passage parts that are located inside an outer wall part including an outer surface in contact with an outer region and outside the battery container and extend along the height direction, and an outer gas discharge hole for discharging the gas to the outside, the one or more gas exhaust passages guiding the gas from the inner gas discharge hole to the outer gas discharge hole.
    Type: Application
    Filed: July 21, 2021
    Publication date: August 31, 2023
    Inventors: KATSUSHI ISHIZAKA, KEISUKE SHIMIZU
  • Publication number: 20230207955
    Abstract: Provided is a battery pack (10) the reliability of which can be enhanced. This battery pack (10) accommodates a secondary battery (14) inside a case (12). The battery pack includes: an exhaust port (22) that provides communication between an internal space of the case (12) for accommodating the secondary battery (14) and the outside and that discharges gas discharged from the secondary battery (14) from the inner space to the outside; and a heat exchange body (24) that is provided to the exhaust port (22) and is formed of a porous material having a three-dimensional mesh structure so that gas passes therethrough.
    Type: Application
    Filed: March 30, 2021
    Publication date: June 29, 2023
    Inventors: Keisuke SHIMIZU, Katsushi ISHIZAKA, Chifumi MURAYAMA