Patents by Inventor Wataru Shimizu

Wataru 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: 11824157
    Abstract: To provide an electrical storage device in which a positive electrode material and a negative electrode material are each impregnated with a different type of electrolytic solution and a method for making the same. An electrical storage device (1) includes a negative electrode (2) including an organic electrolytic solution (21), a positive electrode (3) including an aqueous electrolytic solution (31), and a solid electrolyte (4) disposed between the negative electrode (2) and the positive electrode (3). The negative electrode (2) is entirely sealed. The electrical storage device (1) includes a sealing member (5), which is provided at the periphery of the negative electrode (2) and seals the negative electrode (2). The solid electrolytes (4) form a pair including a sealing material and together with the sealing member (5) seal the negative electrode (2) so that the negative electrode (2) is disposed between the solid electrolytes (4).
    Type: Grant
    Filed: March 14, 2021
    Date of Patent: November 21, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Wataru Shimizu, Masahiro Ohta
  • Publication number: 20230318028
    Abstract: To provide a solid-state secondary battery that is superior in output characteristics and durability characteristics, and with which preferable durability is acquired. A solid-state secondary battery includes a negative electrode layer, a positive electrode layer, and a solid electrolyte layer. The solid electrolyte layer contains a binding material. The binding material is contained in a greater amount on a side closer to the negative electrode layer and a side closer to the positive electrode layer than sides closer to the center in thickness directions in the solid electrolyte layer.
    Type: Application
    Filed: March 24, 2023
    Publication date: October 5, 2023
    Inventors: Akihiro YOSHIZAWA, Wataru SHIMIZU
  • Publication number: 20230318027
    Abstract: To provide an electrode material mixture slurry which can enhance the uniformity of electrode materials in a solid-state cell and obtain a preferred mechanical strength of an electrode layer that is formed. An electrode material mixture slurry for manufacturing a solid-state cell electrode, comprising: a solid electrolyte, an electrode active material, a binder, and a solvent, the solid electrolyte being at least one of a sulfide or an oxide, the binder being a polymer binder which includes an unsaturated carbon-carbon bond.
    Type: Application
    Filed: March 10, 2023
    Publication date: October 5, 2023
    Inventors: Pu QIAN, Akihiro YOSHIZAWA, Wataru SHIMIZU, Atsushi OGAWA
  • Patent number: 11600826
    Abstract: An all-solid-state battery positive electrode 20 includes a positive electrode current collector 21 and a positive electrode active material layer 22 laminated on the positive electrode current collector 21. The positive electrode active material layer 22 includes an inclined portion 50 (a first inclined portion 50A) provided on an outer circumference thereof.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: March 7, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masahiro Ohta, Wataru Shimizu
  • Patent number: 11545699
    Abstract: What is provided is a solid state battery and a solid state battery manufacturing method capable of more reliably preventing short-circuiting. A solid state battery includes: a first electrode piece in which a first electrode active material layer is formed on a first current collector layer; a second electrode piece in which a second electrode active material layer is formed on a second current collector layer; and a bag-shaped solid electrolyte layer which accommodates the first electrode piece, wherein the first electrode piece accommodated in the bag-shaped solid electrolyte layer and the second electrode piece are laminated so as to overlap each other in a plan view so that the first electrode active material layer and the second electrode active material layer are disposed so as to face each other with the solid electrolyte layer interposed therebetween.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: January 3, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masahiro Ohta, Wataru Shimizu, Toru Sukigara
  • Patent number: 11522227
    Abstract: Provided is a secondary battery and a comb-type electrode. A negative electrode layer sheet formed by stacking a negative electrode active material layer on two surfaces of a negative electrode current collector and a positive electrode layer sheet formed by stacking a positive electrode active material layer on two surfaces of a positive electrode current collector are alternately stacked, and an electrolyte body is interposed between the negative electrode layer sheet and the positive electrode layer sheet adjacent in a stacking direction. Each of the negative electrode current collector and the positive electrode current collector includes a bent connecting part sandwiching a notch part and formed by bending two sides in directions opposite to each other. The bent connecting parts of the negative electrode current collectors adjacent in the stacking direction and the bent connecting parts of the positive electrode current collectors adjacent in the stacking direction are connected.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: December 6, 2022
    Assignee: Honda Motor Co., Ltd.
    Inventors: Wataru Shimizu, Masahiro Ohta, Toru Sukigara
  • Patent number: 11515568
    Abstract: The disclosure provides a laminated battery that can realize a laminated structure in which electrode composite material portions are not displaced, can simplify the manufacturing process, and has improved production yield, and provides a manufacturing method thereof. A positive electrode structure and a negative electrode structure in comb shapes are respectively produced with electrode composite material layers positioned in advance, and these are fitted to produce a laminate serving as a battery.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: November 29, 2022
    Assignee: Honda Motor Co., Ltd.
    Inventors: Wataru Shimizu, Masahiro Ohta, Toru Sukigara
  • Publication number: 20220351943
    Abstract: There is provided a decompression processing method for a substrate processing apparatus including a chamber for processing a substrate in an inside thereof, a decompression unit that decompresses the inside of the chamber, and a gas supply that supplies a gas into the inside of the chamber, the method including supplying an additional substance mixable with moisture in a liquid or solid state by the gas supply to the inside of the chamber, forming the moisture into a mixture of the additional substance, and decompressing the inside of the chamber by the decompression unit to remove as a gas the mixture from the inside of the chamber.
    Type: Application
    Filed: April 26, 2022
    Publication date: November 3, 2022
    Applicant: Tokyo Electron Limited
    Inventor: Wataru SHIMIZU
  • Patent number: 11431030
    Abstract: What is provided is a solid state battery which can be manufactured with a high yield, has little variation in initial performance, and has a long lifespan and a method of manufacturing the same. A solid state battery includes a flat laminated structure which is obtained by winding an electrode laminated sheet extending from a first end to a second end.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: August 30, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Wataru Shimizu, Masahiro Ohta
  • Patent number: 11398646
    Abstract: A method for manufacturing a solid-state battery includes: an electrode material filling step of filling a plurality of holes of a porous conductive base material with an active material contained in an electrode slurry so as to form a first electrode body, by dipping the porous conductive base material having the plurality of holes into the electrode slurry; a solid electrolyte material coating step of coating a surface with a solid electrolyte material contained in a solid-electrolyte slurry by dipping at least one of the first electrode body or a second electrode body having a polarity different from that of the first electrode body into the solid-electrolyte slurry; and a solid-state battery laminating step of obtaining a solid-state battery by laminating and pressing the first electrode body and the second electrode body.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: July 26, 2022
    Assignee: Honda Motor Co., Ltd.
    Inventors: Soshi Kawamura, Wataru Shimizu, Ushio Harada
  • Publication number: 20220223382
    Abstract: In a chamber, a stage that places a substrate that is provided as a target for substrate processing is provided in an inside thereof, and an exhaust port that discharges a gas in an inside thereof is formed at a position that is lower than that of the stage around the stage. A baffle plate is provided around the stage and divides an inside of the chamber into a processing space where substrate processing is executed for the substrate and an exhaust space that includes the exhaust port. An ejection port is arranged so as to eject a gas to the exhaust space. A gas supply unit supplies a cleaning gas that reacts with a product that is produced in the exhaust space to the ejection port.
    Type: Application
    Filed: January 12, 2022
    Publication date: July 14, 2022
    Applicant: Tokyo Electron Limited
    Inventor: Wataru SHIMIZU
  • Publication number: 20220208524
    Abstract: An electrode is disposed within a chamber. Multiple gas discharge ports are disposed around the electrode to discharge a gas toward the electrode. A gas supply is configured to supply a processing gas to the multiple gas discharge ports. A radio frequency power supply is configured to supply a radio frequency power to the electrode to excite the processing gas into plasma. A controller is configured to control the radio frequency power supply to supply the radio frequency power to the electrode while controlling the gas supply to supply the processing gas to discharge the processing gas from the multiple gas discharge ports.
    Type: Application
    Filed: December 23, 2021
    Publication date: June 30, 2022
    Inventor: Wataru Shimizu
  • Publication number: 20220148861
    Abstract: A chamber is provided where an exhaust port for exhausting a gas in an inside thereof is formed thereon and substrate processing for a substrate is executed in the inside. A partition member partitions the inside of the chamber into a processing region where the substrate processing is executed and an exhaust region that leads to the exhaust port. The partition member is configured to include a plurality of plate-shaped members. The plurality of plate-shaped members are provided in such a manner that at least a part of each thereof is arranged obliquely at intervals in a side view from a side of a side surface of the chamber and an upper end part of each thereof is arranged so as to overlap with a lower end part of the plate-shaped member that is adjacent thereto in a top view from an upper side of the chamber.
    Type: Application
    Filed: November 8, 2021
    Publication date: May 12, 2022
    Applicant: Tokyo Electron Limited
    Inventors: Wataru SHIMIZU, Ryoya ABE, Tomoya UJIIE
  • Patent number: 11264218
    Abstract: An apparatus of processing a target substrate is provided. The apparatus includes a processing chamber having a substantially cylindrical inner space, a mounting table disposed in the processing chamber and configured to mount thereon the target substrate, at least one supply line configured to supply a gas in a direction along an inner wall surface of a sidewall of the processing chamber to generate a swirl flow of the gas in the processing chamber, and a ventilator configured to exhaust the gas from the processing chamber. Further, in a direction intersecting an axis of the substantially cylindrical inner space, a flow velocity of the gas in a first region close to the inner wall surface is higher than a flow velocity of the gas in a second region where the mounting table is disposed.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: March 1, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventor: Wataru Shimizu
  • Publication number: 20210296688
    Abstract: To provide an electrical storage device in which a positive electrode material and a negative electrode material are each impregnated with a different type of electrolytic solution and a method for making the same. An electrical storage device (1) includes a negative electrode (2) including an organic electrolytic solution (21), a positive electrode (3) including an aqueous electrolytic solution (31), and a solid electrolyte (4) disposed between the negative electrode (2) and the positive electrode (3). The negative electrode (2) is entirely sealed. The electrical storage device (1) includes a sealing member (5), which is provided at the periphery of the negative electrode (2) and seals the negative electrode (2). The solid electrolytes (4) form a pair including a sealing material and together with the sealing member (5) seal the negative electrode (2) so that the negative electrode (2) is disposed between the solid electrolytes (4).
    Type: Application
    Filed: March 14, 2021
    Publication date: September 23, 2021
    Inventors: Wataru SHIMIZU, Masahiro OHTA
  • Publication number: 20210292918
    Abstract: The present disclosure is intended to provide an electrolyzer capable of selectively recovering lithium. The electrolyzer recovers lithium ions Li+ from a material M. The electrolyzer includes: a pair of electrodes; and a cation exchange membrane provided between the pair of electrodes and having a lithium ion conductivity. The cation exchange membrane allows, among cations contained in the material M, more lithium ions Li+ to pass therethrough than other cations Ca2+ and Na+. The electrolyzer is configured to apply a voltage between the pair of electrodes.
    Type: Application
    Filed: March 16, 2021
    Publication date: September 23, 2021
    Inventors: Wataru SHIMIZU, Toru SUKIGARA
  • Publication number: 20210226200
    Abstract: The present invention decreases internal resistance in a solid-state battery having a LiAl system negative electrode mixture. A solid-state battery (1) includes: a positive electrode layer (20), a negative electrode layer (30), and a solid electrolyte layer (40) disposed between the positive electrode layer (20) and negative electrode layer (30), in which the negative electrode layer (30) includes an aluminum layer (31) contacting the solid electrolyte layer (40), and an aluminum-lithium alloy layer (33).
    Type: Application
    Filed: December 23, 2020
    Publication date: July 22, 2021
    Inventors: Noriaki KAMAYA, Hiroto MAEYAMA, Wataru SHIMIZU
  • Publication number: 20210020895
    Abstract: A secondary battery (100) of the present invention includes: a laminate (101) formed by alternately laminating a positive electrode and a negative electrode via an electrolyte; on one sidewall (101a) side of the laminate, a positive electrode reinforcing member (102) attached to an end portion of a plate-shaped positive electrode collector which constitutes the positive electrode, and a positive electrode tab (103) which covers one sidewall (101a) surface of the laminate and is attached to an end portion of the positive electrode reinforcing member (102); on the other sidewall (101b) side of the laminate, a negative electrode reinforcing member (104) attached to an end portion of a plate-shaped negative electrode collector which constitutes the negative electrode, and a negative electrode tab (105) which covers the other sidewall (101b) surface of the laminate and is attached to an end portion of the negative electrode reinforcing member (104); and an outer package which encloses the laminate (101), the posit
    Type: Application
    Filed: July 15, 2020
    Publication date: January 21, 2021
    Inventors: Masahiro Ohta, Wataru Shimizu, Toru Sukigara
  • Publication number: 20200343591
    Abstract: What is provided is a solid state battery and a solid state battery manufacturing method capable of more reliably preventing short-circuiting. A solid state battery includes: a first electrode piece in which a first electrode active material layer is formed on a first current collector layer; a second electrode piece in which a second electrode active material layer is formed on a second current collector layer; and a bag-shaped solid electrolyte layer which accommodates the first electrode piece, wherein the first electrode piece accommodated in the bag-shaped solid electrolyte layer and the second electrode piece are laminated so as to overlap each other in a plan view so that the first electrode active material layer and the second electrode active material layer are disposed so as to face each other with the solid electrolyte layer interposed therebetween.
    Type: Application
    Filed: April 2, 2020
    Publication date: October 29, 2020
    Inventors: Masahiro Ohta, Wataru Shimizu, Toru Sukigara
  • Publication number: 20200343579
    Abstract: What is provided is a solid state battery which can be manufactured with a high yield, has little variation in initial performance, and has a long lifespan and a method of manufacturing the same. A solid state battery includes a flat laminated structure which is obtained by winding an electrode laminated sheet extending from a first end to a second end.
    Type: Application
    Filed: April 2, 2020
    Publication date: October 29, 2020
    Inventors: Wataru Shimizu, Masahiro Ohta