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).

  • Patent number: 11961631
    Abstract: A connection structure of a superconducting layer according to an embodiment includes a first superconducting layer, a second superconducting layer, and a connection layer provided between the first superconducting layer and the second superconducting layer and including a first substance containing a rare earth element, barium, copper, and oxygen and a second substance containing a metal element, in which a first region per unit area at a first interface between the first superconducting layer and the connection layer is 1% or more and 50% or less where the second substance and the first superconducting layer are in contact with each other, and a second region per unit area at a second interface between the second superconducting layer and the connection layer is 1% or more and 50% or less where the second substance and the second superconducting layer are in contact with each other.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: April 16, 2024
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masaya Hagiwara, Tomoko Eguchi, Keiko Albessard, Yasushi Hattori
  • Publication number: 20240113578
    Abstract: According to one embodiment, a rotary electric machine includes a rotor and a stator. The rotor includes a rotary shaft, a first core, a permanent magnet, and an intermediate member. The rotary shaft extends in a first direction. The first core is provided around the rotary shaft in a first plane perpendicular to the first direction. The permanent magnet is provided around the first core in the first plane. The intermediate member is provided between the rotary shaft and the first core. The intermediate member includes a first portion containing a carbon fiber, and a second portion aligned with the first portion in the first direction and containing a metal. The stator is provided around the rotor in the first plane.
    Type: Application
    Filed: October 2, 2023
    Publication date: April 4, 2024
    Inventors: Eri KINOSHITA, Yasuaki HADAME, Masaya HAGIWARA, Kei MATSUOKA
  • Publication number: 20240107898
    Abstract: A superconducting layer joint structure of embodiments includes: a first superconducting layer; a second superconducting layer; and a joint layer provided between the first superconducting layer and the second superconducting layer and containing a plurality of crystal particles containing a rare earth element (RE), barium (Ba), copper (Cu), and oxygen (O). The plurality of crystal particles includes at least one first particle. The at least one first particle has a first inner region and a first outer region. The first inner region is disposed inside the first superconducting layer. The first outer region is disposed outside the first superconducting layer.
    Type: Application
    Filed: March 8, 2023
    Publication date: March 28, 2024
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoko EGUCHI, Yasushi HATTORI, Masaya HAGIWARA, Keiko ALBESSARD
  • Publication number: 20240048004
    Abstract: According to an embodiment, a permanent magnet has a composition represented by a composition formula: RpFeqMrCutCo100-p-q-r-t (where, R is at least one element selected from rare earth elements, M is at least one element selected from Zr, Ti, and Hf, p is a number that satisfies 10.0 at %?p?14.5 at %, r is a number that satisfies 1.5 at %<r?4.2 at %, t is a number that satisfies 0.5 at ?%?t 9.0 at %, and q is a number that satisfies 17.0 at %?q?26.0 at %); and a metallic structure including a cell phase having a Th2Zn17 type crystal phase, a cell wall phase formed so as to partition the Th2Zn17 type crystal phase, and a platelet phase formed so as to intersect with a c-axis of the Th2Zn17 type crystal phase, in which an average distance between the platelet phases is 10 nm or more and 30 nm or less.
    Type: Application
    Filed: February 27, 2023
    Publication date: February 8, 2024
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takahiro KAWAMOTO, Masaya HAGIWARA, Shinya SAKURADA
  • Patent number: 11884905
    Abstract: The present invention provides a fluidic chip for cell culture use which can prevent a decrease in the activity of cultured cells in a preparation stage, and which makes it possible to observe a cultured cell tissue while detaching the cultured cell tissue from the fluidic chip.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: January 30, 2024
    Assignee: UNIVERSITY PUBLIC CORPORATION OSAKA
    Inventor: Masaya Hagiwara
  • Publication number: 20240021348
    Abstract: A permanent magnet is represented by a composition formula 1: RxNbyBtM100-x-y-t. 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, x is a number satisfying 4.0<x?11.0 atomic %, y is a number satisfying 0?y?6.5 atomic %, and t is a number satisfying 0?t<12.0 atomic %. The permanent magnet includes a main phase having a TbCu7 crystal phase. A density of the permanent magnet is 7.00 g/cm3 or more.
    Type: Application
    Filed: March 2, 2023
    Publication date: January 18, 2024
    Inventors: Masaya Hagiwara, Shinya Sakurada
  • Patent number: 11855400
    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: Grant
    Filed: September 3, 2021
    Date of Patent: December 26, 2023
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions Corporation
    Inventors: Yasushi Hattori, Tomoko Eguchi, Masaya Hagiwara, Keiko Albessard
  • Publication number: 20230399599
    Abstract: A cell culture vessel of the present invention includes a plurality of compartments each having a corresponding three-dimensional shape and each configured to be able to retain therein an aqueous liquid by surface tension, or includes a plurality of compartments surrounded by a framework corresponding to sides of a polyhedral shape. Adjacent compartments communicate with each other.
    Type: Application
    Filed: October 4, 2021
    Publication date: December 14, 2023
    Inventor: Masaya HAGIWARA
  • Patent number: 11795424
    Abstract: The present invention provides a cell culture vessel/sample observation cell that is capable of culturing cells or cell tissue in three dimensions and allowing a three-dimensional structure of the cells or the cell tissue to be perceived easily. The cell culture vessel/sample observation cell according to the present invention for containing a culture gel in which the cells or the cell tissue is embedded, comprises a frame, at least one window bordered by the frame, and at least one projection projecting from the frame inwardly into the cell culture vessel/sample observation cell, wherein the at least one window is light-permeable and nutrient component-permeable and is placed in such a way as to allow for multifaceted observation of the cells or the cell tissue, and the projection has a feature point to be placed at a position where the cells or the cell tissue as well as the feature point can be observed from the window.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: October 24, 2023
    Assignees: University Public Corporation Osaka, National University Corporation Kyushu Institute of Technology
    Inventors: Masaya Hagiwara, Tomohiro Kawahara
  • Publication number: 20230298786
    Abstract: A permanent magnet to be provided to a rotary electric machine. The magnet is expressed by a composition formula: RpFerMsCutCo100-p-r-s-t. R is selected from rare earth elements, M is selected from Ti, Zr, and Hf, p is a number satisfying 10.5?p?12.5 at %, r is a number satisfying 18?r?32 at %, s is a number satisfying 0.88?s?4.5 at %, and t is a number satisfying 0.88?t?13.5 at %. When a proportion rx of Fe to a total sum of Fe and Co is expressed by rx=r/(100?p?s?t), a value r1 of the proportion rx at a center in a q-axis direction of the magnet and a value r2 of the proportion rx at a center in d-axis direction of the magnet satisfy 1.01?r1/r2?2.
    Type: Application
    Filed: August 26, 2022
    Publication date: September 21, 2023
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masaya HAGIWARA, Shinya SAKURADA, Shogo SHINTANI
  • Publication number: 20230268099
    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 between the first superconducting layer and the second superconducting layer, the connection layer including crystal particles containing a rare earth element, barium, copper, and oxygen, the crystal particles having a major diameter distribution including a trimodal distribution. The trimodal distribution has first, second, and third distributions in which major diameter become small in this order. The aspect ratios of the crystal particles included in the first distribution and the second distribution include a bimodal distribution. The median value of the major diameters of the crystal particles included in the distribution on a higher aspect ratio side in the bimodal distribution is greater than the median value of the major diameters of the crystal particles included in the distribution on a lower aspect ratio side.
    Type: Application
    Filed: September 2, 2022
    Publication date: August 24, 2023
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasushi HATTORI, Tomoko EGUCHI, Masaya HAGIWARA, Keiko ALBESSARD
  • Patent number: 11677279
    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: Grant
    Filed: March 5, 2020
    Date of Patent: June 13, 2023
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shinya Sakurada, Masaya Hagiwara, Keiko Okamoto
  • Patent number: 11676747
    Abstract: A permanent magnet is expressed by a composition formula: RpFeqMrCusCo100-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: Grant
    Filed: July 14, 2021
    Date of Patent: June 13, 2023
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masaya Hagiwara, Yosuke Horiuchi, Shinya Sakurada
  • Publication number: 20230174911
    Abstract: Provided is a cell culture vessel which allows resolution to be high in a Z-axis direction. A cell culture vessel (1) for accommodating a cell or cell tissue therein includes: a frame part (11) which is provided so as to be located at positions that correspond to respective sides of a polyhedral shape; a window part (12) which is light-transmissive and which is provided so as to be located at positions that correspond to a respective plurality of faces out of faces of the polyhedral shape; and a shaft part (17) which extends, from any of vertices of the polyhedral shape, outward in a direction that is not parallel to any of lines normal to the faces of the polyhedral shape.
    Type: Application
    Filed: May 11, 2021
    Publication date: June 8, 2023
    Inventor: Masaya HAGIWARA
  • Publication number: 20230085118
    Abstract: A connection structure of a superconducting layer according to an embodiment includes a first superconducting layer, a second superconducting layer, and a connection layer provided between the first superconducting layer and the second superconducting layer and including a first substance containing a rare earth element, barium, copper, and oxygen and a second substance containing a metal element, in which a first region per unit area at a first interface between the first superconducting layer and the connection layer is 1% or more and 50% or less where the second substance and the first superconducting layer are in contact with each other, and a second region per unit area at a second interface between the second superconducting layer and the connection layer is 1% or more and 50% or less where the second substance and the second superconducting layer are in contact with each other.
    Type: Application
    Filed: March 8, 2022
    Publication date: March 16, 2023
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masaya HAGIWARA, Tomoko EGUCHI, Keiko ALBESSARD, Yasushi HATTORI
  • Patent number: 11588359
    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 selected 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), car
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: February 21, 2023
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroaki Kinouchi, Tomohiro Suetsuna, Naoyuki Sanada, Masaya Hagiwara
  • Publication number: 20230030881
    Abstract: A connection structure of conductive layers according to an embodiment includes: a first conductive member including a first conductive layer and a first substrate, the first conductive member extending in a first direction, the first conductive member curved in the first direction such that the first conductive layer side is convex; a second conductive member including a second conductive layer and a second substrate, the second conductive member extending in the first direction, the second conductive member curved in the first direction such that the second conductive layer side is convex; a third conductive member including a third conductive layer and a third substrate, the third conductive member extending in the first direction; a first connection layer between a the first conductive layer and the third conductive layer, the first connection layer having varying thickness; and a second connection layer between the second conductive layer and the third conductive layer, the second connection layer having
    Type: Application
    Filed: March 8, 2022
    Publication date: February 2, 2023
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasushi HATTORI, Tomoko EGUCHI, Masaya HAGIWARA, Keiko ALBESSARD
  • Publication number: 20230002663
    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: August 31, 2022
    Publication date: January 5, 2023
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.
    Inventors: Takahiro KAWAMOTO, Tomoko EGUCHI, Tomohiro YAMASHITA, Masaya HAGIWARA, Akiko SAITO, Daichi USUI
  • Publication number: 20230002662
    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: August 31, 2022
    Publication date: January 5, 2023
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.
    Inventors: Takahiro KAWAMOTO, Tomoko EGUCHI, Tomohiro YAMASHITA, Masaya HAGIWARA, Akiko SAITO, Daichi USUI
  • Publication number: 20220298613
    Abstract: A pressed powder material according to embodiments is a pressed powder material including first magnetic metal particles having a first magnetic metal phase containing Fe and Co; and second magnetic metal particles having a second magnetic metal phase containing Fe, in which when the amounts of Co with respect to the total amounts of Fe and Co of the first and second magnetic metal particles are designated as Co1 and Co2, respectively, the ratio of Co2 to Co1 (Co2/Co1) is from 0 to 0.5, the average value of the ratio of the major axis to the minor axis is 2 or greater for the first magnetic metal particles and 1 or greater for the second magnetic metal particles, the second magnetic metal particles are present between the particles of the first magnetic metal particles, and the average value of the major axis of the second magnetic metal particles is equal to or longer than the average value of the major axis of the first magnetic metal particles.
    Type: Application
    Filed: September 3, 2021
    Publication date: September 22, 2022
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masaya Hagiwara, Tomohiro Suetsuna, Naoyuki Sanada, Hiroaki Kinouchi