Patents by Inventor Yasuhiro Sakashita

Yasuhiro Sakashita 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: 20240285959
    Abstract: A defibrillation control device includes a power source unit that supplies electrical energy to an electrode catheter, an abnormality detection unit that detects an earliest abnormal waveform by using a plurality of electrocardiographic waveforms measured by a plurality of electrodes of the electrode catheter after supplying the electrical energy, and a warning unit that issues an alert upon detecting the earliest abnormal waveform.
    Type: Application
    Filed: November 17, 2023
    Publication date: August 29, 2024
    Inventors: Naoya SAKASHITA, Yasuhiro KOJIMA
  • Publication number: 20240282581
    Abstract: A polishing liquid for polishing a member to be polished, the polishing liquid containing abrasive grains containing cerium oxide, in which the member to be polished contains a resin and particles containing a silicon compound. A polishing method including polishing a member to be polished containing a resin and particles containing a silicon compound by using the polishing liquid. A method for manufacturing a component, including obtaining a component by using a polished member polished by the polishing method. A method for manufacturing a semiconductor component, including obtaining a semiconductor component by using a polished member polished by the above-described polishing method.
    Type: Application
    Filed: August 29, 2022
    Publication date: August 22, 2024
    Inventors: Shogo ARATA, Masahiro SAKASHITA, Yasuhiro ICHIGE, Yousuke HOSHI
  • Patent number: 12040453
    Abstract: A battery is provided which can attain a high space efficiency in a battery case, and is excellent in insertability of a wound electrode body into the battery case during manufacturing. The battery herein disclosed includes a rectangular battery case and a wound electrode body including an electrode. The electrode has a long collector and mixture material layers. The electrode has alternately flat first surfaces stacked in the main surface direction of the wound electrode body and second surfaces stacked in the side surface direction of the wound electrode body. A thickness ratio B/A is 0.1 or less, where A represents an average thickness of the mixture material layers present on the first surfaces and B represents an average thickness of the mixture material layers present on the second surfaces.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: July 16, 2024
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventor: Yasuhiro Sakashita
  • Patent number: 11996509
    Abstract: A battery includes: an electrode body including a positive electrode having a positive electrode active material layer formed on a positive electrode collector and a negative electrode having a negative electrode active material layer formed on a negative electrode collector. At one end of the electrode body, a positive electrode collector laminated part, in which a positive electrode collector exposed part is stacked, is present. At another end thereof, a negative electrode collector laminated part, in which a negative electrode collector exposed part is stacked, is present. The positive electrode collector laminated part and the negative electrode collector laminated part are divided into groups while the groups being shifted in position so as not to overlap on a same line in the stacking direction in the electrode body. The groups are mutually independently integrated in one unit, and all tip parts of the groups are joined with one collector terminal.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: May 28, 2024
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventor: Yasuhiro Sakashita
  • Patent number: 11728519
    Abstract: The secondary battery includes: a square battery case; and a wound electrode body accommodated in the battery case. The wound electrode body has a positive electrode sheet and a negative electrode sheet overlapping with each other to be wound about a winding axis to have a rectangular shape when seen from a winding axis direction. The wound electrode body has corner parts positioned at four corners of the wound electrode body when seen from the winding axis direction. The positive electrode sheet has a positive electrode collector and a positive electrode active material layer. The negative electrode sheet has a negative electrode collector and a negative electrode active material layer. Folding grooves are formed along the winding axis direction at portions of the positive electrode active material layer or portions of the negative electrode active material layer that are positioned at the corner parts.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: August 15, 2023
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventors: Masafumi Kadoi, Takahiro Sakurai, Yasuhiro Sakashita
  • Publication number: 20230223549
    Abstract: An electrode is manufactured by forming an active material layer on a surface of an electrode current collector, forming a groove portion on a surface of the active material layer, and peeling off a part of the active material layer. An electrode current collector includes a metal foil and an adhesive layer. The metal foil includes a first region and a second region. The adhesive layer covers the first region. In the second region, the metal foil is exposed. The active material layer includes a first portion that covers the adhesive layer and a second portion that covers the second region. The groove portion is formed in each of the first portion and the second portion. The second portion is peeled off.
    Type: Application
    Filed: November 4, 2022
    Publication date: July 13, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yusuke KINTSU, Tetsuya MIMURA, Haruka SHIONOYA, Yasuhiro SAKASHITA, Takeshi KONDO, Tomoyuki TASAKI, Yuta KAWAMOTO
  • Publication number: 20220131198
    Abstract: The present disclosure provides a technology for preventing detachment of a collector bundle or a collector terminal derived from collector breakage. A wound electrode body of the secondary battery disclosed herein includes: a core portion in which electrode mix layers of electrode sheets face each other; a collector wound portion resulting from winding of uncoated portions of the electrode sheets; and a collector bundle which is formed in a partial region of the collector wound portion, and to which a collector terminal is connected. Furthermore, in the wound electrode body, an elongated slit is formed running through the collector wound portion, and extending continuously so as to conform to the collector bundle, between the collector bundle and the core portion. In consequence it becomes possible to prevent large breaks such that the collector bundle or the collector terminal comes off.
    Type: Application
    Filed: October 20, 2021
    Publication date: April 28, 2022
    Inventor: Yasuhiro SAKASHITA
  • Publication number: 20220085422
    Abstract: The secondary battery includes: a square battery case; and a wound electrode body accommodated in the battery case. The wound electrode body has a positive electrode sheet and a negative electrode sheet overlapping with each other to be wound about a winding axis to have a rectangular shape when seen from a winding axis direction. The wound electrode body has corner parts positioned at four corners of the wound electrode body when seen from the winding axis direction. The positive electrode sheet has a positive electrode collector and a positive electrode active material layer. The negative electrode sheet has a negative electrode collector and a negative electrode active material layer. Folding grooves are formed along the winding axis direction at portions of the positive electrode active material layer or portions of the negative electrode active material layer that are positioned at the corner parts.
    Type: Application
    Filed: September 9, 2021
    Publication date: March 17, 2022
    Inventors: Masafumi KADOI, Takahiro SAKURAI, Yasuhiro SAKASHITA
  • Publication number: 20220077488
    Abstract: A battery includes: an electrode body including a positive electrode having a positive electrode active material layer formed on a positive electrode collector and a negative electrode having a negative electrode active material layer formed on a negative electrode collector. At one end of the electrode body, a positive electrode collector laminated part, in which a positive electrode collector exposed part is stacked, is present. At another end thereof, a negative electrode collector laminated part, in which a negative electrode collector exposed part is stacked, is present. The positive electrode collector laminated part and the negative electrode collector laminated part are divided into groups while the groups being shifted in position so as not to overlap on a same line in the stacking direction in the electrode body. The groups are mutually independently integrated in one unit, and all tip parts of the groups are joined with one collector terminal.
    Type: Application
    Filed: August 19, 2021
    Publication date: March 10, 2022
    Inventor: Yasuhiro SAKASHITA
  • Publication number: 20220077502
    Abstract: A battery is provided which can attain a high space efficiency in a battery case, and is excellent in insertability of a wound electrode body into the battery case during manufacturing. The battery herein disclosed includes a rectangular battery case and a wound electrode body including an electrode. The electrode has a long collector and mixture material layers. The electrode has alternately flat first surfaces stacked in the main surface direction of the wound electrode body and second surfaces stacked in the side surface direction of the wound electrode body. A thickness ratio B/A is 0.1 or less, where A represents an average thickness of the mixture material layers present on the first surfaces and B represents an average thickness of the mixture material layers present on the second surfaces.
    Type: Application
    Filed: August 20, 2021
    Publication date: March 10, 2022
    Inventor: Yasuhiro SAKASHITA
  • Patent number: 10468664
    Abstract: A method of manufacturing a lithium-ion secondary battery electrode sheet includes the steps of: conveying a current collector (11) coated with a binder solution (12); feeding a powder material (13) of granulated particles (13a) onto the current collector (11) while guiding the powder material (13) of the granulated particles (13a) toward a gap between the current collector (11) and a squeegee member (25) disposed so as to be spaced with the gap from the current collector (11) being conveyed; and shaping the powder material (13) of the granulated particles (13a) fed on the current collector (11) by using a squeegee member (25).
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: November 5, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, Zeon Corporation
    Inventors: Yasuhiro Sakashita, Koichi Tanihara, Yuji Shibata, Hiroyuki Sekine
  • Patent number: 10431807
    Abstract: The present invention discloses a method of manufacturing a lithium-ion secondary battery electrode. The method includes the steps of: supplying composite particles (1), each containing an active material (2) and a binder (4), onto a sheet collector (42); and rolling the composite particles (1) supplied onto the collector (42), thus forming an active material layer (44). The rolling step includes a first rolling sub-step involving first rolling, and a second rolling sub-step to be performed after the first rolling sub-step. Rubber rolls (R1) are preferably used in the first rolling sub-step.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: October 1, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, Zeon Corporation
    Inventors: Kazuhiro Suzuki, Yasuhiro Sakashita, Yuji Shibata, Takahiro Ogawa
  • Patent number: 10297815
    Abstract: A method for producing an electrode for lithium ion secondary batteries proposed herein includes: a step of forming a binder coat layer 16 on a collector 12, with the binder coat layer 16 being formed so as to have a large coat amount region 18A of relatively a large coating amount and a small coat amount region 18B of relatively small coating amount, and the large coat amount region 18A being provided at both side edge portions 16E of the binder coat layer 16; a step of supplying granulated particles containing active material particles and a binder, onto the binder coat layer 16; and a step of forming an active material layer by pressing of aggregates of the granulated particles.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: May 21, 2019
    Assignee: ZEON CORPORATION
    Inventors: Koichi Tanihara, Yasuhiro Sakashita, Yuya Kitagawa, Hiroyuki Sekine
  • Patent number: 10258949
    Abstract: A granulated body manufacturing apparatus includes: a housing that includes a cylindrical internal space, is disposed so that a center axis direction of the internal space is horizontal, and houses a raw material for a granulated body inside the internal space; an agitation blade that is provided along an inner circumferential surface of the internal space, and upon being rotated around the center axis, scoops up the raw material accumulated in a bottom portion of the internal space and makes the raw material fall down from an upper position inside the internal space; and a crossing blade including a wire having a wire diameter not exceeding 0.3 mm, the wire being provided at a position in a range, inside the internal space, in which the crossing blade does not come into contact with the agitation blade, and being looped around a framework body that rotates around the center axis.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: April 16, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeyuki Ozaki, Yasuhiro Sakashita, Takenori Ikeda
  • Patent number: 10084179
    Abstract: Provided is a technique capable of evenly smoothing powder supplied to the surface of a supply member. A powder coating apparatus includes a pair of press rollers, hoppers, and squeegee rollers disposed such that prescribed gaps are formed between the squeegee rollers and the press rollers, and adjusting thickness of the powder by smoothing the powder supplied to each outer circumferential surface of the press rollers. The powder coating apparatus presses the powder, smoothed by the squeegee rollers, between the press rollers to form compressed powder layers on both the surfaces of the web. The squeegee roller is formed in a column having an axis being parallel to the outer circumferential surface of the press roller and being orthogonal to a moving direction of the outer circumferential surface of the press roller.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: September 25, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, Zeon Corporation
    Inventors: Koichi Tanihara, Yasuhiro Sakashita, Yuji Shibata, Hiroyuki Sekine
  • Patent number: 10062920
    Abstract: A powder supplying device (2) includes a case (6) in which a storage portion (6a) is formed for temporarily storing powder (10), the case (6) having an inlet (6b) formed in an upper end of the storage portion (6a), and a rectangular outlet (6c) formed in a lower end of the storage portion (6a); a rotor (7) that is arranged in the case (6) and transports the powder (10) in the storage portion (6a) to the outlet (6c) by rotating; and a mesh body (8) through which the powder (10) that has been transported to the outlet (6c) passes. The powder supplying device (2) supplies the powder (10) onto an upper surface of an electrode foil (5). The rotor (7) has a brush-like shape, with a plurality of hair members (7b) radially implanted pointing radially outward with an axial center (G) of the rotor (7) as the center.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: August 28, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, Zeon Corporation
    Inventors: Masahiro Umeda, Yasuhiro Sakashita, Koichi Tanihara, Naohiro Hasama, Ryo Nakatani
  • Publication number: 20180159114
    Abstract: A method for producing an electrode for lithium ion secondary batteries proposed herein includes: a step of forming a binder coat layer 16 on a collector 12, with the binder coat layer 16 being formed so as to have a large coat amount region 18A of relatively a large coating amount and a small coat amount region 18B of relatively small coating amount, and the large coat amount region 18A being provided at both side edge portions 16E of the binder coat layer 16; a step of supplying granulated particles containing active material particles and a binder, onto the binder coat layer 16; and a step of forming an active material layer by pressing of aggregates of the granulated particles.
    Type: Application
    Filed: November 10, 2015
    Publication date: June 7, 2018
    Applicant: ZEON CORPORATION
    Inventors: Koichi TANIHARA, Yasuhiro SAKASHITA, Yuya KITAGAWA, Hiroyuki SEKINE
  • Patent number: 9960409
    Abstract: Provided is an apparatus for manufacturing an electrode for a lithium ion secondary battery that makes it possible to form a more uniform active material layer by using granulated particles. The manufacturing apparatus includes: a conveying mechanism, a supply unit, a squeegee, an adjustment unit, and rolling rolls. The conveying mechanism conveys a collector. The supply unit supplies granulated particles, including active material particles and a binder, onto the surface of the conveyed collector. The squeegee levels the supplied granulated particles. The adjustment unit is disposed upstream of the squeegee. The adjustment unit controls the accumulation height of the granulated particles accumulated upstream of the squeegee. The rolling rolls roll the leveled granulated particles and form the active material layer.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: May 1, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichi Tanihara, Yasuhiro Sakashita, Naohiro Hasama, Yuto Hosono
  • Patent number: 9825279
    Abstract: Provided is a powder supply device for a secondary battery which can always supply a fixed amount of powder with high accuracy without being influenced by a state of the powder. In addition, provided is an apparatus for manufacturing an electrode body, which includes the powder supply device and can efficiently manufacture an electrode body. The powder supply device includes a rotor which makes powder fall into an opening, and a mesh body which covers the lower end of the opening. Uneven portions or projecting portions are formed on the outer circumferential surface of the rotor. The rotor is rotatably supported in a storing portion. The gap is formed between the outer circumferential surface of the rotor and the inner surface of the storing portion so that they are spaced apart. The mesh body is arranged away from the outer circumferential surface of the rotor.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: November 21, 2017
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, Zeon Corporation
    Inventors: Eiji Orisaka, Yasuhiro Sakashita, Ryo Nakatani, Naohiro Hasama, Yuji Shibata
  • Publication number: 20170256781
    Abstract: The present invention discloses a method of manufacturing a lithium-ion secondary battery electrode. The method includes the steps of: supplying composite particles (1), each containing an active material (2) and a binder (4), onto a sheet collector (42); and rolling the composite particles (1) supplied onto the collector (42), thus forming an active material layer (44). The rolling step includes a first rolling sub-step involving first rolling, and a second rolling sub-step to be performed after the first rolling sub-step. Rubber rolls (R1) are preferably used in the first rolling sub-step.
    Type: Application
    Filed: September 8, 2015
    Publication date: September 7, 2017
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, ZEON CORPORATION
    Inventors: Kazuhiro SUZUKI, Yasuhiro SAKASHITA, Yuji SHIBATA, Takahiro OGAWA