Patents by Inventor Kazuki Sakai

Kazuki Sakai 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: 11732933
    Abstract: Provided is a magnetic cooling device including: in a hollow container, an inert gas; a material filling part containing a refrigerant and magnetic material particles having a magnetocaloric effect; gas storages containing the refrigerant at both ends of the material filling part; and material partitions between the material filling part and the gas storages, in which a volume proportion of the inert gas in the hollow container is 1 vol % or more and 12 vol % or less.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: August 22, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiroaki Yoshida, Kazuki Sakai
  • Patent number: 11682806
    Abstract: A battery stack structure includes a battery stack, a passage, a junction box, and a bus bar. The battery stack includes spaced battery cells. The passage is adjacent to a first side of the battery stack. The passage allows air to flow in the passage before the air cools the battery stack. The junction box is adjacent to a second side of the battery stack. The junction box allows the air to flow in the junction box after the air has cooled the battery stack. The junction box contains an electronic device. The bus bar is contained in the junction box and is electrically and thermally coupled to the electronic device. The bus bar allows passing of current. The direction of the flow of the air flowing from the battery stack faces a major surface of the bus bar.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: June 20, 2023
    Assignee: SUBARU CORPORATION
    Inventors: Yutaka Yokoyama, Kazuki Sakai
  • Publication number: 20230144145
    Abstract: Provided is a canister that includes a first adsorbing layer K1 including a first adsorbing material Q1 as an adsorbing material Q and a second adsorbing layer K2 including, as the adsorbing material Q, a second adsorbing material Q2 different from the first adsorbing material Q1. The first absorbing layer K1 and the second absorbing layer K2 are provided inside a casing 10. In a flowing direction of fuel vapor J between one end and another end of the casing 10, the first adsorbing layer K1 is disposed at a position in contact with an air port 10a at the other end, and the second adsorbing layer K2 is disposed closer to the one end than the first adsorbing layer K1 is. The first adsorbing material Q1 adsorbs the fuel vapor J at an adsorbing rate that is lower than an adsorbing rate of the second adsorbing material Q2.
    Type: Application
    Filed: November 4, 2022
    Publication date: May 11, 2023
    Inventors: Kenji Seki, Kunihisa Iwasaki, Kazuki Sakai
  • Publication number: 20230146244
    Abstract: Provided is a canister that includes a first adsorbing layer K1 including a first adsorbing material Q1 as an adsorbing material Q and a second adsorbing layer K2 including, as the adsorbing material Q, a second adsorbing material Q2 different from the first adsorbing material Q1. The first absorbing layer K1 and the second absorbing layer K2 are provided inside a casing 10. In a flowing direction X of fuel vapor J between one end and another end of the casing 10, the first adsorbing layer K1 is disposed at a position in contact with an air port 10a at the other end, and the second adsorbing layer K2 is disposed closer to the one end than the first adsorbing layer K1 is. The first adsorbing material Q1 adsorbs the fuel vapor J at an adsorbing rate that is higher than an adsorbing rate of the second adsorbing material Q2.
    Type: Application
    Filed: November 4, 2022
    Publication date: May 11, 2023
    Inventors: Kenji Seki, Kunihisa Iwasaki, Kazuki Sakai
  • Publication number: 20230137848
    Abstract: A battery-module protection structure is configured to protect a battery module accommodated within a vehicle frame of a vehicle from an external impact. The battery-module protection structure includes a rail disposed within the vehicle frame, a pedestal securing the battery module and secured to the rail by using a securing member, and the vehicle frame serving as a housing of the battery module. The pedestal is configured such that, in a case where the vehicle receives the external impact and the securing member breaks, the pedestal moves in an inner direction of the vehicle along the rail while securing the battery module.
    Type: Application
    Filed: October 24, 2022
    Publication date: May 4, 2023
    Inventors: Toshiaki NARUKE, Toshiyuki HARA, Norio SUZUKI, Yutaka SAKAKURA, Kazuki SAKAI, Tatsuya ISHIKAWA
  • Patent number: 11309485
    Abstract: A magnetostrictive material includes a FeGaSm alloy that is represented by Expression (1), Fe(100-x-y)GaxSmy??(1) (in Expression (1), x and y are respectively a content rate (at. %) of Ga and a content rate (at. %) of Sm, and satisfy that y?0.35x?4.2, y??x+20.1, and y??0.1x+2.1).
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: April 19, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takehiro Tanaka, Kazuki Sakai, Taichi Nakamura, Ryou Kuwabara
  • Patent number: 11221042
    Abstract: This half thrust bearing having a half-ring shape has: a sliding surface for receiving force in the axial direction; a back surface opposed to the sliding surface; and a resin covering layer on the sliding surface. The half thrust bearing is characterized in that the thickness of the resin covering layer is greatest at the circumferential central part of the half thrust bearing, and becomes lesser toward both circumferential ends of the half thrust bearing. The present invention also pertains to a thrust bearing, a bearing device, and an internal combustion engine.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: January 11, 2022
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Tetsuya Ogawa, Kazuki Sakai
  • Publication number: 20210296720
    Abstract: A battery stack structure includes a battery stack, a passage, a junction box, and a bus bar. The battery stack includes spaced battery cells. The passage is adjacent to a first side of the battery stack. The passage allows air to flow in the passage before the air cools the battery stack. The junction box is adjacent to a second side of the battery stack. The junction box allows the air to flow in the junction box after the air has cooled the battery stack. The junction box contains an electronic device. The bus bar is contained in the junction box and is electrically and thermally coupled to the electronic device. The bus bar allows passing of current. The direction of the flow of the air flowing from the battery stack faces a major surface of the bus bar.
    Type: Application
    Filed: December 11, 2020
    Publication date: September 23, 2021
    Applicant: SUBARU CORPORATION
    Inventors: Yutaka YOKOYAMA, Kazuki Sakai
  • Publication number: 20210287831
    Abstract: Provided is a magnetic calorific composite material including a magnetic calorific material and an alloy-coated carbon material including an alloy coat having a melting point of 150° C. or lower, in which a content of the alloy-coated carbon material is 7.5 wt % to 22.5 wt %.
    Type: Application
    Filed: February 25, 2021
    Publication date: September 16, 2021
    Inventors: KAZUKI SAKAI, HIROAKI YOSHIDA
  • Publication number: 20210285696
    Abstract: Provided is a magnetic cooling device including: in a hollow container, an inert gas; a material filling part containing a refrigerant and magnetic material particles having a magnetocaloric effect; gas storages containing the refrigerant at both ends of the material filling part; and material partitions between the material filling part and the gas storages, in which a volume proportion of the inert gas in the hollow container is 1 vol % or more and 12 vol % or less.
    Type: Application
    Filed: February 25, 2021
    Publication date: September 16, 2021
    Inventors: HIROAKI YOSHIDA, KAZUKI SAKAI
  • Publication number: 20210242809
    Abstract: A magnetostriction-type vibration powered generator including a power generating section and a frame joined to the power generating section. The power generating section includes a diaphragm formed of non-magnetic material and disposed at a first end of the power generating section, a magnetostriction element disposed at a second end of the power generating section; and a coil wrapped around the magnetostriction element along the longitudinal direction. The frame includes a frame body formed of a magnetic material and joined to a second end of the power generating section. A magnet is provided on the frame body so as to face the magnetostriction element of the power generating section.
    Type: Application
    Filed: April 20, 2021
    Publication date: August 5, 2021
    Inventors: Taichi NAKAMURA, Kazuki SAKAI
  • Publication number: 20210183546
    Abstract: Provided is a magnetic calorific composite material containing a magnetic calorific material and an alloy binder having a melting point in a range of 100° C. to 150° C., in which a content of the alloy binder is 7.5 to 22.5 wt %.
    Type: Application
    Filed: December 11, 2020
    Publication date: June 17, 2021
    Inventors: KAZUKI SAKAI, HIROAKI YOSHIDA
  • Patent number: 11008642
    Abstract: A magnetostrictive material includes a FeGaBa alloy that is represented by Expression (1), Fe(100-x-y)GaxBay??(1) (in Expression (1), x and y are respectively a content rate (at. %) of Ga and a content rate (at. %) of Ba, and satisfy that y?0.012x?0.168, y??0.05x+1.01, and y??0.04/7x+0.87/7).
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: May 18, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuki Sakai, Taichi Nakamura, Ryou Kuwabara
  • Patent number: 11012007
    Abstract: Provided herein is a magnetostriction element having a large power output and a high power density. The magnetostriction element is comprised of a magnetostrictive material that is a monocrystalline alloy represented by the following formula (1), Fe(100-?-?)Ga?X?,??Formula (1) wherein ? and ? represent the Ga content (at %) and the X content (at %), respectively, X is at least one element selected from the group consisting of Sm, Eu, Gd, Tb, Dy, Cu, and C, and the formula satisfies 5???40, and 0???1.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: May 18, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Taichi Nakamura, Kazuki Sakai
  • Patent number: 10808759
    Abstract: A sliding member of the present embodiment includes a bearing alloy layer and a coating layer provided on a sliding surface side thereof. The coating layer has a resin binder with sulfide particles dispersed therein. A covering portion is provided over specific particles and is made of metal oxide comprising the same metal element as a metal element constituting the sulfide particles. When measured by an X-ray photoelectron spectroscopy and an X-ray diffraction method, a ratio of a peak height of the metal oxide to a peak height of metal sulfide by the X-ray photoelectron spectroscopy is from 0.10 to 0.50, and a ratio of the peak height of the metal oxide to the peak height of the metal sulfide by the X-ray diffraction method is 0.10 or less.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: October 20, 2020
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Kazuki Sakai, Shigeru Inami, Kenji Nimura
  • Publication number: 20200277988
    Abstract: This half thrust bearing having a half-ring shape has: a sliding surface for receiving force in the axial direction; a back surface opposed to the sliding surface; and a resin covering layer on the sliding surface. The half thrust bearing is characterized in that the thickness of the resin covering layer is greatest at the circumferential central part of the half thrust bearing, and becomes lesser toward both circumferential ends of the half thrust bearing. The present invention also pertains to a thrust bearing, a bearing device, and an internal combustion engine.
    Type: Application
    Filed: November 8, 2018
    Publication date: September 3, 2020
    Inventors: Tetsuya OGAWA, Kazuki SAKAI
  • Publication number: 20200274056
    Abstract: A magnetostrictive element that can exhibit a sufficiently large magnetostriction amount in a longitudinal direction is formed of a single crystal alloy magnetostrictive material. The magnetostrictive element has a shape of a plate-shaped rectangular parallelepiped, a main plane of the plate-shaped rectangular parallelepiped includes a plurality of magnetic domains that are regions where atomic magnetic moments are arranged in the same direction and whose width is 10 ?m to 200 ?m, and a total area rate of a magnetic domain where an angle difference between a lateral direction of the main plane and a direction of the magnetic moments of the magnetic domain is 10° or less to the main plane is 60% to 100%.
    Type: Application
    Filed: January 28, 2020
    Publication date: August 27, 2020
    Inventors: MASAYA SHIROTANI, TAICHI NAKAMURA, KAZUKI SAKAI
  • Patent number: 10636724
    Abstract: A mount structure having a joining capable of withstanding development of cracks generated by thermal stress due to repeated temperature changes in a mount structure having the joining of a large area is formed by joining a ceramic substrate electrode of a ceramic substrate and a metal substrate electrode of a metal substrate by a laminate, in which the laminate is formed by stacking a first interface layer, a first solder joining portion, a second interface layer, a first buffer material electrode, a buffer material, a second buffer material electrode, a third interface layer, a second solder joining portion and a fourth interface layer in this order from the ceramic substrate electrode toward the metal substrate electrode, a thickness of the laminate is 30 ?m or more and 100 ?m or less, a difference between a thickness of the first solder joining portion and a thickness of the second solder joining portion is within 25%, and differences in elastic moduli and in linear expansion coefficients between the firs
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: April 28, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTTD.
    Inventors: Kiyohiro Hine, Akio Furusawa, Hidetoshi Kitaura, Kazuki Sakai
  • Publication number: 20200124099
    Abstract: A sliding member of the present embodiment includes a bearing alloy layer and a coating layer provided on a sliding surface side thereof. The coating layer has a resin binder with sulfide particles dispersed therein. A covering portion is provided over specific particles and is made of metal oxide comprising the same metal element as a metal element constituting the sulfide particles. When measured by an X-ray photoelectron spectroscopy and an X-ray diffraction method, a ratio of a peak height of the metal oxide to a peak height of metal sulfide by the X-ray photoelectron spectroscopy is from 0.10 to 0.50, and a ratio of the peak height of the metal oxide to the peak height of the metal sulfide by the X-ray diffraction method is 0.10 or less.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 23, 2020
    Inventors: Kazuki SAKAI, Shigeru INAMI, Kenji NIMURA
  • Publication number: 20200105997
    Abstract: Provided herein is an FeGa-base magnetostriction element that has specific characteristics with regards to magnetostriction along the longitudinal direction, and that shows a sufficiently high magnetostriction level along the longitudinal direction. The magnetostriction element is formed of a magnetostrictive material that is a monocrystalline alloy represented by Fe(100-?)Ga? (? represents the Ga content (at %), and satisfies 14???19) or Fe(100-?-?)Ga?X? (? and ? represent the Ga content (at %) and the X content (at %), respectively, X is at least one element selected from the group consisting of Sm, Eu, Gd, Tb, Dy, Cu, and C, and the formula satisfies 14???19, and 0.5???1).
    Type: Application
    Filed: July 2, 2019
    Publication date: April 2, 2020
    Inventors: TAICHI NAKAMURA, KAZUKI SAKAI, MASAYA SHIROTANI, RYOU KUWABARA