Patents by Inventor Masaya Hagiwara

Masaya Hagiwara 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: 20220302609
    Abstract: A connection structure of a superconducting layer of an embodiment incudes a first superconducting member including a first superconducting layer, and extends in a first direction, a second superconducting member including a second superconducting layer facing the first superconducting layer, and extends in the first direction, the second superconducting member having a first region, a second region, and a third region which is separated in the second direction from the second region, and a connection layer that contains a rare earth element (RE), barium (Ba), copper (Cu), and oxygen (O), and connects the first superconducting layer and the second superconducting layer. The first superconducting layer is present in a third direction between the second region and the third region, the third direction being perpendicular to the first direction and perpendicular to the second direction.
    Type: Application
    Filed: September 3, 2021
    Publication date: September 22, 2022
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Yasushi HATTORI, Tomoko EGUCHI, Masaya HAGIWARA, Keiko ALBESSARD
  • Patent number: 11404187
    Abstract: A magnetic material is expressed by a composition formula 1: (R1-xYx)aMbTcZnd. R is at least one element selected from the group consisting of rare-earth elements, M is Fe or Fe and Co, T is at least one element selected from the group consisting of Ti, V, Nb, Ta, Mo, and W, x is a number satisfying 0.01?x?0.8, a is a number satisfying 4?a?20 atomic percent, b is a number satisfying b=100?a?c?d atomic percent, c is a number satisfying 0<c<7 atomic percent, and d is a number satisfying 0.01?d?7 atomic percent. The magnetic material includes: a main phase having a ThMn12 crystal phase; and a sub phase containing 50 atomic percent or more of Zn.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: August 2, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masaya Hagiwara, Shinya Sakurada, Keiko Okamoto
  • Publication number: 20220199887
    Abstract: A connection structure for a superconducting layer according to an embodiment includes a first superconducting layer; a second superconducting layer; and a connection layer disposed between the first superconducting layer and the second superconducting layer, the connection layer including crystal grains containing a rare earth element (RE), barium (Ba), copper (Cu), and oxygen (O), the crystal grains having a grain size distribution including a bimodal distribution. The bimodal distribution includes a first distribution including a first peak and a second distribution including a second peak. A first grain size corresponding to the first peak is larger than a second grain size corresponding to the second peak. Among the crystal grains, crystal grains having a grain size corresponding to the first distribution include a crystal grain having a plate shape or a flat shape.
    Type: Application
    Filed: March 8, 2022
    Publication date: June 23, 2022
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Masaya Hagiwara, Tomoko Eguchi, Keiko Albessard, Yasushi Hattori
  • Publication number: 20220169970
    Abstract: A fluidic device according to the present invention includes a base and a lid member. The base and the lid member are configured to form a first flow path, a second flow path, and a third flow path between the base and the lid member, the base and the lid member being bonded to each other, the first flow path communicating with the second flow path through the third flow path. The third flow path has a first accommodation section for detachably accommodating a first cell culture module. The second flow path has a second accommodation section for detachably accommodating a second cell culture module. The first cell culture module contains first cells having a barrier function and a first culture gel. The second cell culture module contains second cells and a second culture gel. The first accommodation section is configured in such a manner that the first cell culture module blocks the third flow path.
    Type: Application
    Filed: March 16, 2020
    Publication date: June 2, 2022
    Inventor: Masaya HAGIWARA
  • Publication number: 20220109336
    Abstract: A magnet material is represented by a formula: RxDyBesBtM100-x-y-t (R is at least one element selected from a group consisting of rare-earth elements, D is at least one element selected from a group consisting of Nb, Ti, Zr, Ta, and Hf, and M is at least one element selected from a group consisting of Fe and Co, and when a total number of elements obtained by adding R, D, B, and M is set to 100, x is a number satisfying 4.0<x?11.0, y is a number satisfying 0?y?7.5, s is a number satisfying 0<s 1.0, and t is a number satisfying 0?t<12), and includes a main phase having at least one crystal phase selected from a group consisting of a ThMn12 type crystal phase and a TbCu7 type crystal phase.
    Type: Application
    Filed: August 26, 2021
    Publication date: April 7, 2022
    Inventors: Masaya Hagiwara, Shinya Sakurada
  • Publication number: 20220085669
    Abstract: A rotating electric machine according to embodiments is a rotating electric machine including a rotor including a first core and being capable of rotating around a rotating shaft; and a stator disposed to face the rotor in the axial direction of the rotating shaft, the first core including a first pressed powder material having a plurality of first flaky magnetic metal particles and a first intercalated phase, the first flaky magnetic metal particles having an average thickness of from 10 nm to 100 ?m, each first flaky magnetic metal particle having a first flat surface and a first magnetic metal phase including at least one first element elected from the group consisting of Fe, Co, and Ni, the average value of the ratio of the average length in the first flat surface with respect to the average thickness being from 5 to 10,000, the first intercalated phase existing between the first flaky magnetic metal particles and including at least one second element selected from the group consisting of oxygen (O), carb
    Type: Application
    Filed: March 9, 2021
    Publication date: March 17, 2022
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroaki KINOUCHI, Tomohiro SUETSUNA, Naoyuki SANADA, Masaya HAGIWARA
  • Publication number: 20220072606
    Abstract: A pressed powder material of embodiments is a pressed powder material including a plurality of flaky magnetic metal particles and an intercalated phase, each of the flaky magnetic metal particles having a flat surface and a magnetic metal phase containing at least one first element selected from the group consisting of Fe, Co, and Ni, the flaky magnetic metal particles having an average thickness of from 10 nm to 100 ?m and an average value of the ratio of the average length in the flat surface with respect to the thickness of from 5 to 10,000, the intercalated phase existing between the flaky magnetic metal particles and containing at least one second element selected from the group consisting of oxygen (O), carbon (C), nitrogen (N), and fluorine (F), wherein in the pressed powder material, the flat surface is oriented in parallel to a plane of the pressed powder material and has the difference in coercivity on the basis of direction within the plane, the intercalated phase includes an oxide and a resin, the
    Type: Application
    Filed: March 5, 2021
    Publication date: March 10, 2022
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomohiro SUETSUNA, Hiroaki KINOUCHI, Naoyuki SANADA, Masaya HAGIWARA
  • Patent number: 11208584
    Abstract: A heat regenerating material particle according to an embodiment includes a plurality of heat regenerating substance particles having a maximum volume specific heat value of 0.3 J/cm3·K or more at a temperature of 20 K or lower, and a binder bonding the heat regenerating substance particles, the binder containing water insoluble resin. The heat regenerating material particle has a particle diameter of 500 ?m or less.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: December 28, 2021
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomohiro Yamashita, Takahiro Kawamoto, Tomoko Eguchi, Masaya Hagiwara, Akiko Saito, Takashi Kuboki
  • Patent number: 11177060
    Abstract: A permanent magnet comprises crystal grains each including a main phase. An average size of the crystal grains is 1.0 ?m or less, and a degree of orientation of easy magnetization axes of the crystal grains to an easy magnetization axis of the magnet is 15% or more and 90% or less. A recoil magnetic permeability is 1.13 or more, a residual magnetization is 0.8 T or more and less than 1.16 T, and an intrinsic coercive force is 850 kA/m or more.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: November 16, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masaya Hagiwara, Shinya Sakurada, Keiko Okamoto
  • Publication number: 20210343457
    Abstract: A permanent magnet is expressed by a composition formula: RpFeqMrCu5Co100-p-q-r-s. The magnet includes a crystal grain having a main phase including a TbCu7 crystal phase, and a volume ratio of the TbCu7 crystal phase to the main phase is 95% or more.
    Type: Application
    Filed: July 14, 2021
    Publication date: November 4, 2021
    Inventors: Masaya Hagiwara, Yosuke Horiuchi, Shinya Sakurada
  • Patent number: 11155775
    Abstract: The present invention provides a cell culture vessel or a sample cell for observation use that makes it possible to observe three-dimensionally-cultured cells from various angles. The cell culture vessel or the sample cell for observation use according to the present invention is characterized by being equipped with a culture gel in which a cell or cell tissue is embedded and a first vessel which encloses the culture gel, wherein a space in the first vessel is filled with the culture gel; and the first vessel has a light-permeable window made from a hydrogel.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: October 26, 2021
    Assignees: OSAKA PREFECTURE UNIVERSITY PUBLIC CORPORATION, NATIONAL UNIVERSITY CORPORATION KYUSHU INSTITUTE OF TECHNOLOGY
    Inventors: Masaya Hagiwara, Tomohiro Kawahara
  • Publication number: 20210309904
    Abstract: A cold storage material, which has a large specific heat and a small magnetization in an extremely low temperature region and has satisfactory manufacturability, is provided, and a method for manufacturing the same is provided. Further, a refrigerator having high efficiency and excellent cooling performance is provided by filling this refrigerator with the above-described cold storage material. Moreover, a device incorporating a superconducting coil capable of reducing influence of magnetic noise derived from a cold storage material is provided. The cold storage material of embodiments is a granular body composed of an intermetallic compound in which the ThCr2Si2-type structure 11 occupies 80% by volume or more, and has a crystallite size of 70 nm or less.
    Type: Application
    Filed: March 24, 2021
    Publication date: October 7, 2021
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.
    Inventors: Takahiro KAWAMOTO, Tomoko EGUCHI, Tomohiro YAMASHITA, Masaya HAGIWARA, Akiko SAITO, Daichi USUI
  • Patent number: 10991491
    Abstract: In one embodiment, a permanent magnet includes a composition expressed by RpFeqMrCusCo100-p-q-r-s (R is a rare-earth element, M is at least one element selected from Zr, Ti, and Hf, 10?p?13.5 at %, 28?q?40 at %, 0.88?r?7.2 at %, and 3.5?s?13.5 at %), and a metallic structure including a cell phase having a Th2Zn17 crystal phase, and a cell wall phase. A Fe concentration (C1) in the cell phase is in a range from 28 at % to 45 at %, and a difference (C1?C2) between the Fe concentration (C1) in the cell phase and a Fe concentration (C2) in the cell wall phase is larger than 10 at %.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: April 27, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yosuke Horiuchi, Shinya Sakurada, Tsuyoshi Kobayashi, Keiko Okamoto, Masaya Hagiwara
  • Patent number: 10951074
    Abstract: A permanent magnet is expressed by a composition formula: RpFeqMrCutCo100-p-q-r-t. The magnet comprises a metal structure including a main phase having a Th2Zn17 crystal phase and a grain boundary phase. The main phase includes a cell phase having the Th2Zn17 crystal phase and a Cu-rich phase. A section including a c-axis of the Th2Zn17 crystal phase has a first region in the crystal grain and a second region in the crystal grain, the first region is provided in the cell phase divided by the Cu-rich phase, the second region is provided within a range of not less than 50 nm nor more than 200 nm from the grain boundary phase in a direction perpendicular to an extension direction of the grain boundary phase, and a difference between a Cu concentration of the first region and a Cu concentration of the second region is 0.5 atomic percent or less.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: March 16, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yosuke Horiuchi, Shinya Sakurada, Masaya Hagiwara, Tadahiko Kobayashi, Toshihide Takahashi
  • Patent number: 10923254
    Abstract: A permanent magnet expressed by a composition formula: RpFeqMrCutCo100-p-q-r-t. The magnet comprises a metallic structure including crystal grains which constitutes a main phase having a Th2Zn17 crystal phase. An average value of Fe concentrations in the crystal grains of 20 or more is 28 atomic percent or more and an average value of R element concentrations in the crystal grains of 20 or more is 10 atomic percent or more.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: February 16, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yosuke Horiuchi, Shinya Sakurada, Masaya Hagiwara, Tsuyoshi Kobayashi, Tadahiko Kobayashi
  • Patent number: 10923255
    Abstract: A magnetic material is expressed by a composition formula: (R1-xZx)aMbTc, and includes a main phase having a ThMn12 crystal structure. In the ThMn12 crystal structure, when an amount of the element Z occupying 2a site is Z2a atomic percent, an amount of the element Z occupying 8i site is Z8i atomic percent, an amount of the element Z occupying 8j site is Z8j atomic percent, and an amount of the element Z occupying 8f site is Z8f atomic percent, Z2a, Z8i, Z8j, and Z8f satisfy (Z8i+Z8j+Z8f)/(Z2a+Z8i+Z8j+Z8f)<0.1.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: February 16, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naoyuki Sanada, Masaya Hagiwara, Shinya Sakurada
  • Patent number: 10892091
    Abstract: A method of manufacturing a permanent magnet comprises a solution heat treatment. The solution heat treatment includes: performing a heat treatment at a temperature TST; placing a cooling member including a first layer and a second layer on the first layer between the heater and the treatment object so that the first layer faces the treatment object; and transferring the treatment object together with the cooling member to the outside of a heating chamber, and cooling the treatment object until a temperature of the treatment object becomes a temperature lower than a temperature TST?200° C. In the step of cooling the treatment object, a cooling rate until the temperature of the treatment object becomes the temperature TST?200° C. is 5° C./s or more.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: January 12, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naoyuki Sanada, Shinya Sakurada, Yosuke Horiuchi, Masaya Hagiwara, Masaki Endo, Takahiro Terada, Hideo Chikaoka
  • Patent number: 10770208
    Abstract: A high performance permanent magnet is provided. The permanent magnet includes a composition represented by a composition formula: RpFeqMrCutCo100-p-q-r-t, and a metallic structure including cell phases having a Th2Zn17 crystal phase and Cu-rich phases having higher Cu concentration than the cell phases. An average diameter of the cell phases is 220 nm or less, and in a numeric value range from a minimum diameter to a maximum diameter of the cell phases, a ratio of a number of cell phases having a diameter in a numeric value range of less than upper 20% from the maximum diameter is 20% or less of all the cell phases.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: September 8, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yosuke Horiuchi, Shinya Sakurada, Keiko Okamoto, Masaya Hagiwara, Tsuyoshi Kobayashi, Masaki Endo, Tadahiko Kobayashi, Naoyuki Sanada
  • Publication number: 20200204014
    Abstract: The magnet material is represented by a composition formula 1: (R1-xYx)aMbAc, where R is at least one element selected from the group consisting of rare-earth elements, M is at least one element selected from the group consisting of Fe and Co, A is at least one element selected from the group consisting of N, C, B, H and P, x is a number satisfying 0.01?x?0.8, a is a number satisfying 4?a?20 atomic %, b is a number satisfying b=100?a?c atomic %, and c is a number satisfying 0?c?18 atomic %), and includes a main phase having a Th2Ni17 crystal structure. A concentration of the element M in the main phase is 89.6 atomic % or more.
    Type: Application
    Filed: March 5, 2020
    Publication date: June 25, 2020
    Inventors: Shinya Sakurada, Masaya Hagiwara, Keiko Okamoto
  • Patent number: 10650947
    Abstract: The invention provides a high-performance permanent magnet. The permanent magnet has a composition that is expressed by a composition formula RpFeqMrCutCo100-p-q-r-t, where R is at least one element selected from a rare earth element, M is at least one element selected from the group consisting of Zr, Ti, and Hf, p is a number satisfying 10.8?p?12.5 atomic percent, q is a number satisfying 25?q?40 atomic percent, r is a number satisfying 0.88?r?4.5 atomic percent, and t is a number satisfying 3.5?t?13.5 atomic percent. The permanent magnet also has a metallic structure that includes a main phase having a Th2Zn17 crystal phase, and a Cu-M rich phase having a higher Cu concentration and a higher M concentration than the main phase.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: May 12, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yosuke Horiuchi, Shinya Sakurada, Keiko Okamoto, Masaya Hagiwara, Tsuyoshi Kobayashi, Masaki Endo, Tadahiko Kobayashi, Naoyuki Sanada