Patents by Inventor Shogo Yamada

Shogo Yamada 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: 20230067213
    Abstract: An object of the present invention is to provide a dioxazine pigment having excellent fluidity. More specifically, an object of the present invention is to provide a dioxazine pigment in which practically sufficient fluidity is attained in both (1) initial viscosity and (2) storage stability when the dioxazine pigment is used in a printing ink application. The object is attained by providing a dioxazine pigment having a contact angle with respect to water according to an infiltration rate method in a range of 30° to 75°, and a contact angle with respect to 1-bromonaphthalene according to an infiltration rate method in a range of 30° to 75°.
    Type: Application
    Filed: November 2, 2022
    Publication date: March 2, 2023
    Applicant: DIC CORPORATION
    Inventors: Shogo Yamada, Hiromasa Kikuchi, Hidehiro Otake
  • Publication number: 20230050357
    Abstract: Mg and Bi are contained in each of a first fillet in a first braze joining portion in which a tube and a fin join, a second fillet in a second braze joining portion in which the tube and a header plate join, and a third fillet in a third braze joining portion in which the header plate and a tank body join. A concentration of Mg of each of the first to third fillets is from 0.2% or more to 2.0% or less by mass. When the tube includes a brazing material layer, a concentration of Mg of the tube at its plate thickness center is from 0.1% or more to 1.0% or less by mass. When the fin includes a brazing material layer, a concentration of Mg of the fin at its plate thickness center is from 0.2% or more to 1.0% or less by mass.
    Type: Application
    Filed: October 10, 2022
    Publication date: February 16, 2023
    Inventors: Takahiro SHINODA, Shogo YAMADA, Nobuhiro HONMA, Naoki SUGIMOTO, Taketoshi TOYAMA
  • Publication number: 20220399487
    Abstract: A magnetic domain wall movement element includes a magnetoresistance effect part, a first electrode, a second electrode, a third electrode, a first magnetization fixed layer, and a second magnetization fixed layer. The magnetoresistance effect part includes a reference layer, a magnetic domain wall movement layer, and a non-magnetic layer. The magnetic domain wall movement layer has a first region and second region in which a magnetization direction is fixed, and a third region in which a magnetization direction is variable. The reference layer overlaps at least part of the first region and the second region in a plan view in a first direction, and at least part of the first region and the second region is shorter than the third region in a third direction orthogonal to the first direction and the second direction.
    Type: Application
    Filed: April 12, 2022
    Publication date: December 15, 2022
    Applicant: TDK CORPORATION
    Inventors: Shogo YAMADA, Tatsuo SHIBATA
  • Publication number: 20220376168
    Abstract: A magnetic domain wall movement element includes a magnetic recording layer which includes a ferromagnetic material; a non-magnetic layer which is laminated on the magnetic recording layer; and a magnetization reference layer which is laminated on the non-magnetic layer, in which the magnetic recording layer has a first ferromagnetic layer, a spacer layer, and a second ferromagnetic layer in order from the non-magnetic layer, a magnetization of the first ferromagnetic layer and a magnetization of the second ferromagnetic layer are antiferromagnetically coupled, and an electrical resistivity of the first ferromagnetic layer is higher than the electrical resistivity of the second ferromagnetic layer.
    Type: Application
    Filed: February 20, 2020
    Publication date: November 24, 2022
    Applicant: TDK CORPORATION
    Inventor: Shogo YAMADA
  • Patent number: 11491587
    Abstract: An aluminum alloy brazing sheet used for brazing of an aluminum material in an inert gas atmosphere or in vacuum is formed of a two-layer material in which a brazing material and a core material are stacked. The core material is formed of an aluminum alloy and has a grain size of 20 to 300 ?m, and the aluminum alloy contains Mn of 0.50 to 2.00 mass %, Mg of 0.40 to 2.00 mass %. Si of 1.50 mass % or less, Fe of 1.00 mass % or less, and Ti of 0.10 to 0.30 mass %, with the balance being aluminum and inevitable impurities. The brazing material is formed of an aluminum alloy containing Si of 4.00 to 13.00 mass % with the balance being aluminum and inevitable impurities. In a drop-type fluidity test, a ratio ? (?=Ka/Kb) of a fluid coefficient Ka is 0.50 or more.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: November 8, 2022
    Assignee: UACJ CORPORATION
    Inventors: Tomoki Yamayoshi, Hidetoshi Kumagai, Hirokazu Tanaka, Taketoshi Toyama, Naoki Sugimoto, Nobuhiro Honma, Shogo Yamada
  • Publication number: 20220281040
    Abstract: An aluminum alloy brazing sheet is formed of a four-layer material formed of a brazing material, an intermediate material, a core material, and a. brazing material. The intermediate material comprises Mg of 0.40 to 6.00 mass %, and has a total of contents of Mn, Cr, and Zr being 0.10 mass % or more. The core material comprises Mg of 0.20 to 2.00 mass % and comprises one or two or more of Mn of 1.80 mass % or less, Si of 1.05 mass % or less, Fe of 1.00 mass % or less, Cu of 1.20 mass % or less, Ti of 0.30 mass % or less, Zr of 0.30 mass % or less, and Cr of 0.30 mass % or less. Each of the core material and the intermediate material has a grain size of 20 to 300 ?m.
    Type: Application
    Filed: July 6, 2020
    Publication date: September 8, 2022
    Applicant: UACJ Corporation
    Inventors: Tomoki Yamayoshi, Hidetoshi Kumagai, Hirokazu Tanaka, Taketoshi Toyama, Naoki Sugimoto, Nobuhiro Honma, Shogo Yamada, Takahiro Shinoda
  • Publication number: 20220250195
    Abstract: An aluminum alloy brazing sheet used for brazing of an aluminum material in an inert gas atmosphere or in vacuum is formed of a two-layer material in which a brazing material and a core material are stacked in this order. The core material is formed of an aluminum alloy and has a grain size of 20 to 300 ?m, and the aluminum alloy includes Mn of 0.50 to 2.00 mass %, Mg of 0.40 to 2.00 mass %, Si of 1.50 mass % or less, and Fe of 1.00 mass % or less. The brazing material is formed of an aluminum alloy including Si of 4.00 to 13.00 mass % and one or two or more of Mn of 2.00 mass or less, Ti of 0.30 mass % or less, Zr of 0.30 mass % or less, and Cr of 0.30 mass % or less.
    Type: Application
    Filed: July 6, 2020
    Publication date: August 11, 2022
    Applicant: UACJ Corporation
    Inventors: Tomoki Yamayoshi, Hidetoshi Kumagai, Hirokazu Tanaka, Taketoshi Toyama, Naoki Sugimoto, Nobuhiro Honma, Shogo Yamada, Takahiro Shinoda
  • Publication number: 20220188618
    Abstract: This neuromorphic device including: a first element group; and a second element group, in which each of the first element group and the second element group includes a plurality of magnetic domain wall movement elements, each of the plurality of magnetic domain wall movement elements includes a magnetic domain wall movement layer, a ferromagnetic layer, and a non-magnetic layer interposed between the magnetic domain wall movement layer and the ferromagnetic layer, a length of the magnetic domain wall movement layer of each of the magnetic domain wall movement elements belonging to the first element group in a longitudinal direction is shorter than a length of the magnetic domain wall movement layer of each of the magnetic domain wall movement elements belonging to the second element group in the longitudinal direction, and a resistance changing rate when a predetermined pulse is input is higher for each of the magnetic domain wall movement elements belonging to the first element group than for each of the mag
    Type: Application
    Filed: October 21, 2021
    Publication date: June 16, 2022
    Applicant: TDK CORPORATION
    Inventors: Shogo YAMADA, Tatsuo SHIBATA
  • Publication number: 20220165934
    Abstract: A magnetoresistance effect element includes a magnetic recording layer which includes a ferromagnetic material, a non-magnetic layer laminated on the magnetic recording layer, and a magnetization reference layer laminated on the non-magnetic layer. The magnetic recording layer includes a first ferromagnetic layer, a spacer layer, and a second ferromagnetic layer in order from the non-magnetic layer. The first ferromagnetic layer and the second ferromagnetic layer are antiferromagnetically coupled to each other. The magnetic recording layer has a central region in which a product of film thickness and saturation magnetization of the first ferromagnetic layer is greater than a product of a film thickness and saturation magnetization of the second ferromagnetic layer, and an outer region in which the product of the film thickness and the saturation magnetization of the first ferromagnetic layer is smaller than the product of the film thickness and the saturation magnetization of the second ferromagnetic layer.
    Type: Application
    Filed: December 6, 2021
    Publication date: May 26, 2022
    Applicant: TDK CORPORATION
    Inventors: Shogo YAMADA, Minoru OTA, Tatsuo SHIBATA
  • Patent number: 11335849
    Abstract: A magnetic domain wall displacement type magnetic recording element which comprises: a first magnetization fixed part which is stacked in a first direction, a magnetic recording layer which includes a magnetic domain wall and extends in a second direction which crosses with the first direction, a non-magnetic layer which is provided between the first magnetization fixed part and the magnetic recording layer, and a first via part which is electrically connected to the magnetic recording layer, wherein at least a part of the first via part is located at a position which is apart from the first magnetization fixed part in the second direction in planar view observed from the first direction, the magnetic recording layer includes a first part which has a position where the first magnetization fixed part overlaps with the magnetic recording layer in planar view observed from the first direction, and a width of the first via part in a third direction which is orthogonal to the second direction is larger than a widt
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: May 17, 2022
    Assignee: TDK CORPORATION
    Inventors: Shogo Yamada, Tomoyuki Sasaki, Yukio Terasaki, Tatsuo Shibata
  • Publication number: 20220109101
    Abstract: According to an embodiment, there is provided an integrated device including: a substrate; and a laminated structure stacked on the substrate, in which the laminated structure includes a first element group and a second element group disposed at a position farther from the substrate than the first element group, each of the first element group and the second element group includes a plurality of domain wall movement elements, each of the plurality of domain wall movement elements includes a domain wall movement layer, a ferromagnetic layer, and a non-magnetic layer interposed between the domain wall movement layer and the ferromagnetic layer, and each of the domain wall movement elements belonging to the second element group has a lower critical current density required for moving a domain wall of the domain wall movement layer than each of the domain wall movement elements belonging to the first element group.
    Type: Application
    Filed: September 30, 2021
    Publication date: April 7, 2022
    Applicant: TDK CORPORATION
    Inventors: Shogo YAMADA, Tatsuo SHIBATA
  • Publication number: 20220051708
    Abstract: A magnetic domain wall displacement element includes a first ferromagnetic layer, a second ferromagnetic layer extending in a second direction and magnetically recordable, a nonmagnetic layer, and a first conductive part having a first intermediate layer and a second conductive part having a second intermediate layer, in which the first intermediate layer is sandwiched between first and second magnetization regions and exhibiting first and second magnetization directions, the second intermediate layer is sandwiched between a third magnetization region and exhibiting the second magnetization direction and a fourth magnetization region exhibiting the first magnetization direction in the first direction, and an area of the first magnetization region is larger than an area of the second magnetization region and an area of the third magnetization region is smaller than an area of the fourth magnetization region in a cross section in the first direction and the second direction.
    Type: Application
    Filed: May 15, 2020
    Publication date: February 17, 2022
    Applicant: TDK CORPORATION
    Inventors: Shogo YAMADA, Tatsuo SHIBATA, Yugo ISHITANI
  • Patent number: 11235428
    Abstract: A flux-free brazing aluminum alloy brazing sheet includes: a core material formed of aluminum alloy comprising Si of 0.50 to 0.90 mass %, Cu of 0.30 to 2.50 mass %, and Mn of 1.40 to 1.80 mass %, with a Mg content limited to 0.05 mass % or less, and with the balance being Al and inevitable impurities; an intermediate material being formed of aluminum alloy comprising Mg of 0.40 to 1.00 mass %, and Zn of 2.00 to 6.00 mass %, with the balance being Al and inevitable impurities; and a brazing material being formed of aluminum alloy comprising Si of 6.00 to 13.00 mass %, Mg of 0.05 to 0.40 mass %, and Bi of 0.010 to 0.050 mass %, with the balance being Al and inevitable impurities.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: February 1, 2022
    Assignee: UACJ CORPORATION
    Inventors: Tatsuya Ide, Yutaka Yanagawa, Shogo Yamada, Takahiro Shinoda, Shingo Ono
  • Publication number: 20220005866
    Abstract: An integrated device includes: a substrate; and a laminated structural body. The substrate has a plurality of switching elements. The laminated structural body has a plurality of magnetic elements having a first element group disposed in a first hierarchical layer and a second element group disposed in a second hierarchical layer. Each of the plurality of magnetic elements includes a conductive layer and a laminated body including a ferromagnetic layer. The plurality of switching elements include a plurality of first switching elements connected to first ends of the conductive layers and a plurality of second switching elements connected to second ends of the conductive layers. A first switching element connected to a second magnetic element belonging to a second element group which is present between a first switching element and a second switching element connected to a first magnetic element belonging to a first element group.
    Type: Application
    Filed: March 19, 2021
    Publication date: January 6, 2022
    Applicant: TDK CORPORATION
    Inventors: Shogo YAMADA, Tatsuo SHIBATA, Tomoyuki SASAKI
  • Publication number: 20210394312
    Abstract: An aluminum alloy brazing sheet used for brazing of an aluminum material in an inert gas atmosphere or in vacuum is formed of a two-layer material in which a brazing material and a core material are stacked. The core material is formed of an aluminum alloy and has a grain size of 20 to 300 ?m, and the aluminum alloy contains Mn of 0.50 to 2.00 mass %, Mg of 0.40 to 2.00 mass %. Si of 1.50 mass % or less, Fe of 1.00 mass % or less, and Ti of 0.10 to 0.30 mass %, with the balance being aluminum and inevitable impurities. The brazing material is formed of an aluminum alloy containing Si of 4.00 to 13.00 mass % with the balance being aluminum and inevitable impurities. In a drop-type fluidity test, a ratio ? (?=Ka/Kb) of a fluid coefficient Ka is 0.50 or more.
    Type: Application
    Filed: October 25, 2019
    Publication date: December 23, 2021
    Applicant: UACJ Corporation
    Inventors: Tomoki Yamayoshi, Hidetoshi Kumagai, Hirokazu Tanaka, Taketoshi Toyama, Naoki Sugimoto, Nobuhiro Honma, Shogo Yamada
  • Publication number: 20210394311
    Abstract: A brazing sheet (1) includes a core material (11) composed of an Al alloy that contains 0.20-3.0 mass % of Mg; and a filler material (12) layered on the core material and composed of an Al alloy that contains Mg, 6.0-13.0 mass % of Si, and more than 0.050 mass % and 1.0 mass % or less of Bi. The Mg concentration of the filler material becomes continuously lower in a direction from a boundary (122) with the core material to an outermost surface (121). The Mg concentration of the filler material is 0.150 mass % or less at a first depth from the outermost surface that is ? of a thickness (tf) of the filler material and is 5-90% of the amount of Mg in the core material at a second depth from the outermost surface that is ? of the thickness of the filler material.
    Type: Application
    Filed: September 27, 2019
    Publication date: December 23, 2021
    Inventors: Shinichi NAKAMURA, Tomoki YAMAYOSHI, Takeyoshi DOKOU, Takahiro SHINODA, Shogo YAMADA, Yoshihiko SONODA, Naoki SUGIMOTO, Nobuhiro HONMA, Taketoshi TOYAMA
  • Patent number: 11045911
    Abstract: A sacrificial material on one surface of a core material, a Al brazing material containing Si: 6.0% to 14.0%, Mg: 0.05% to 1.5%, Bi: 0.05% to 0.25%, Sr: 0.0001% to 0.1%, and Al balance and satisfying (Bi+Mg)×Sr?0.1 is disposed on the other surface, Mg—Bi-based compounds of the brazing material with a diameter of 0.1-5.0 ?m are more than 20 per 10,000-?m2 and the Mg—Bi-based compounds with a diameter of 5.0 ?m or more are less than 2 before brazing, the core material contains Mn: 1.0% to 1.7%, Si: 0.2% to 1.0%, Fe: 0.1% to 0.5%, Cu: 0.08% to 1.0%, Mg: 0.1% to 0.7%, and Al balance, the sacrificial material contains Zn: 0.5% to 6.0% and Mg of which a content is limited to 0.1% or less, and a Mg concentration on a surface of the sacrificial material after brazing is 0.15% or less.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: June 29, 2021
    Assignees: Mitsubishi Aluminum Co., Ltd., DENSO CORPORATION
    Inventors: Yoshiki Mori, Hideyuki Miyake, Michihide Yoshino, Shohei Iwao, Masakazu Edo, Naoki Sugimoto, Nobuhiro Honma, Shogo Yamada, Hayaki Teramoto, Taketoshi Toyama
  • Publication number: 20210189136
    Abstract: An object of the present invention is to provide a dioxazine pigment having excellent fluidity. More specifically, an object of the present invention is to provide a dioxazine pigment in which practically sufficient fluidity is attained in both (1) initial viscosity and (2) storage stability when the dioxazine pigment is used in a printing ink application. The object is attained by providing a dioxazine pigment having a contact angle with respect to water according to an infiltration rate method in a range of 30° to 75°, and a contact angle with respect to 1-bromonaphthalene according to an infiltration rate method in a range of 30° to 75°.
    Type: Application
    Filed: November 15, 2018
    Publication date: June 24, 2021
    Applicant: DIC Corporation
    Inventors: Shogo Yamada, Hiromasa Kikuchi, Hidehiro Otake
  • Patent number: 11027373
    Abstract: An aluminum alloy clad material includes: a sacrificial material on one surface of a core material; and an Al—Si—Mg—Bi-based brazing material disposed on other surface of the core material, contains, by mass %, Si: 6.0% to 14.0%, Mg: 0.05% to 1.5%, Bi: 0.05% to 0.25%, Sr: 0.0001% to 0.1%, and a balance consisting of Al and inevitable impurities, and satisfies a relationship of (Bi+Mg)×Sr?0.1 by mass %, in which Mg—Bi-based compounds contained in the Al—Si—Mg—Bi-based brazing material with a diameter of 0.1 ?m or more and less than 5.0 ?m are more than 20 in number per 10,000-?m2 and the Mg—Bi-based compounds with a diameter of 5.0 ?m or more are less than 2 in number, and the core material contains Mn: 0.9% to 1.7%, Si: 0.2% to 1.0%, Fe: 0.1% to 0.5%, Cu: 0.08% to 1.0%, and a balance consisting of Al and inevitable impurities.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: June 8, 2021
    Assignees: Mitsubishi Aluminum Co., Ltd., DENSO CORPORATION
    Inventors: Yoshiki Mori, Hideyuki Miyake, Michihide Yoshino, Shohei Iwao, Masakazu Edo, Naoki Sugimoto, Nobuhiro Honma, Shogo Yamada, Hayaki Teramoto, Taketoshi Toyama
  • Patent number: 11020824
    Abstract: An Al—Si—Mg—Bi-based brazing material containing Si: 6.0% to 14.0%, Fe: 0.05% to 0.3%, Mg: 0.02% to 1.5%, Bi: 0.05% to 0.25%, Sr: 0.0001% to 0.1%, and a balance of Al and inevitable impurities, and satisfies (Bi+Mg)×Sr?0.1, is disposed on both surfaces of a core material, Mg—Bi-based compounds of the brazing material with a diameter of 0.1 ?m or more and less than 5.0 ?m in terms of equivalent circle diameter are more than 20 in number in 10,000 ?m2 and the Mg—Bi-based compounds with diameter of 5.0 ?m or more are less than 2 in number in 10,000 ?m2, the core material contains Mn: 0.8% to 1.8%, Si: 0.01% to 1.0%, Fe: 0.1% to 0.5%, and a balance of Al and inevitable impurities, and a cathode current density of a brazing material layer after a brazing heat treatment is 0.1 mA/cm2 or less.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: June 1, 2021
    Assignees: Mitsubishi Aluminum Co., Ltd., DENSO CORPORATION
    Inventors: Yoshiki Mori, Hideyuki Miyake, Michihide Yoshino, Shohei Iwao, Masakazu Edo, Naoki Sugimoto, Nobuhiro Honma, Shogo Yamada, Hayaki Teramoto, Taketoshi Toyama