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).
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Patent number: 11732933Abstract: 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: GrantFiled: February 25, 2021Date of Patent: August 22, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hiroaki Yoshida, Kazuki Sakai
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Patent number: 11682806Abstract: 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: GrantFiled: December 11, 2020Date of Patent: June 20, 2023Assignee: SUBARU CORPORATIONInventors: Yutaka Yokoyama, Kazuki Sakai
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Publication number: 20230144145Abstract: 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: ApplicationFiled: November 4, 2022Publication date: May 11, 2023Inventors: Kenji Seki, Kunihisa Iwasaki, Kazuki Sakai
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Publication number: 20230146244Abstract: 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: ApplicationFiled: November 4, 2022Publication date: May 11, 2023Inventors: Kenji Seki, Kunihisa Iwasaki, Kazuki Sakai
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Publication number: 20230137848Abstract: 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: ApplicationFiled: October 24, 2022Publication date: May 4, 2023Inventors: Toshiaki NARUKE, Toshiyuki HARA, Norio SUZUKI, Yutaka SAKAKURA, Kazuki SAKAI, Tatsuya ISHIKAWA
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Patent number: 11309485Abstract: 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: GrantFiled: February 13, 2019Date of Patent: April 19, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Takehiro Tanaka, Kazuki Sakai, Taichi Nakamura, Ryou Kuwabara
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Patent number: 11221042Abstract: 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: GrantFiled: November 8, 2018Date of Patent: January 11, 2022Assignee: DAIDO METAL COMPANY LTD.Inventors: Tetsuya Ogawa, Kazuki Sakai
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Publication number: 20210296720Abstract: 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: ApplicationFiled: December 11, 2020Publication date: September 23, 2021Applicant: SUBARU CORPORATIONInventors: Yutaka YOKOYAMA, Kazuki Sakai
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Publication number: 20210287831Abstract: 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: ApplicationFiled: February 25, 2021Publication date: September 16, 2021Inventors: KAZUKI SAKAI, HIROAKI YOSHIDA
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Publication number: 20210285696Abstract: 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: ApplicationFiled: February 25, 2021Publication date: September 16, 2021Inventors: HIROAKI YOSHIDA, KAZUKI SAKAI
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Publication number: 20210242809Abstract: 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: ApplicationFiled: April 20, 2021Publication date: August 5, 2021Inventors: Taichi NAKAMURA, Kazuki SAKAI
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Publication number: 20210183546Abstract: 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: ApplicationFiled: December 11, 2020Publication date: June 17, 2021Inventors: KAZUKI SAKAI, HIROAKI YOSHIDA
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Patent number: 11008642Abstract: 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: GrantFiled: February 13, 2019Date of Patent: May 18, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kazuki Sakai, Taichi Nakamura, Ryou Kuwabara
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Patent number: 11012007Abstract: 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: GrantFiled: July 2, 2019Date of Patent: May 18, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Taichi Nakamura, Kazuki Sakai
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Patent number: 10808759Abstract: 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: GrantFiled: October 16, 2019Date of Patent: October 20, 2020Assignee: DAIDO METAL COMPANY LTD.Inventors: Kazuki Sakai, Shigeru Inami, Kenji Nimura
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Publication number: 20200277988Abstract: 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: ApplicationFiled: November 8, 2018Publication date: September 3, 2020Inventors: Tetsuya OGAWA, Kazuki SAKAI
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Publication number: 20200274056Abstract: 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: ApplicationFiled: January 28, 2020Publication date: August 27, 2020Inventors: MASAYA SHIROTANI, TAICHI NAKAMURA, KAZUKI SAKAI
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Patent number: 10636724Abstract: 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 firsType: GrantFiled: April 10, 2018Date of Patent: April 28, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTTD.Inventors: Kiyohiro Hine, Akio Furusawa, Hidetoshi Kitaura, Kazuki Sakai
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Publication number: 20200124099Abstract: 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: ApplicationFiled: October 16, 2019Publication date: April 23, 2020Inventors: Kazuki SAKAI, Shigeru INAMI, Kenji NIMURA
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Publication number: 20200105997Abstract: 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: ApplicationFiled: July 2, 2019Publication date: April 2, 2020Inventors: TAICHI NAKAMURA, KAZUKI SAKAI, MASAYA SHIROTANI, RYOU KUWABARA