Patents by Inventor Shoji Ikeda

Shoji Ikeda 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: 20210057641
    Abstract: Provided are a magnetic tunnel junction dement suppressing diffusion and penetration of constituent elements between a hard mask film, and a magnetic tunnel junction film and a protection layer, and a method for manufacturing the magnetic tunnel junction element. The magnetic tunnel junction element has a configuration in which a non-magnetic insertion layer (7) including Ta or the like is inserted beneath a hard mask layer (8).
    Type: Application
    Filed: March 11, 2019
    Publication date: February 25, 2021
    Inventors: Koichi NISHIOKA, Tetsuo ENDOH, Shoji IKEDA, Hiroaki HONJO, Hideo SATO, Sadahiko MIURA
  • Publication number: 20200409547
    Abstract: [Problem] It is desired to provide a technology capable of conveniently determining the type of operation in a case where a non-contact operation is performed with a fingertip separated from an object. [Solution] Provided is an information processing apparatus including a processing unit that determines whether an operation of a user is a pointing operation or a hover operation on the basis of an angle of at least a part of an upper limb of the user.
    Type: Application
    Filed: January 23, 2019
    Publication date: December 31, 2020
    Inventors: TETSUO IKEDA, EISUKE FUJINAWA, KOSUKE YOSHITOMI, MASAKI HANDA, JUNJI OTSUKA, KENJI GOTOH, KATSUJI MIYAZAWA, SHOJI WATANABE
  • Publication number: 20200362475
    Abstract: A modified ethylene-vinyl alcohol copolymer fiber includes an ethylene-vinyl alcohol copolymer containing 0.1 to 10 mol % of a modified component and 5 to 55 mol % of ethylene, and has a crystallinity of 25% to 50%.
    Type: Application
    Filed: December 20, 2018
    Publication date: November 19, 2020
    Applicant: KURARAY CO., LTD.
    Inventors: Shoji ONOGI, Hitoshi NAKATSUKA, Shinya KAWAKADO, Takayuki IKEDA
  • Patent number: 10833256
    Abstract: A magnetic tunnel junction element includes, in a following stack order, an underlayer formed of a metal material, a fixed layer formed of a ferromagnetic body, a magnetic coupling layer formed of a nonmagnetic body, a reference layer formed of a ferromagnetic body, a barrier layer formed of a nonmagnetic body, and a recording layer formed of a ferromagnetic body, or alternatively, the magnetic tunnel junction element includes, in a following stack order, a recording layer formed of a ferromagnetic body, a barrier layer formed of a nonmagnetic body, a reference layer formed of a ferromagnetic body, a magnetic coupling layer formed of a nonmagnetic body, an underlayer formed of a metal material, and a fixed layer formed of a ferromagnetic body, wherein the fixed layer is formed and stacked after performing plasma treatment to a surface of the underlayer having been formed.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: November 10, 2020
    Assignee: TOHOKU UNIVERSITY
    Inventors: Hiroaki Honjo, Tetsuo Endoh, Shoji Ikeda, Hideo Sato, Hideo Ohno
  • Publication number: 20200343442
    Abstract: An object of the invention is to provide a magnetoresistance effect element which includes a reference layer having three or more magnetic layers and which improves a thermal stability factor ? by decreasing a write error rate using an element structure that enables a wide margin to be secured between a current at which magnetization of the reference layer is reversed and a writing current Ic of a recording layer and by reducing an effect of a stray magnetic field from the reference layer. The magnetoresistance effect element includes: a first recording layer (A1); a first non-magnetic layer (11); and a first reference layer (B1), wherein the first reference layer (B1) including n-number of a plurality of magnetic layers (21, 22, . . . , 2n) and (n-1)-number of a plurality of non-magnetic insertion layers (31, 32, . . . 3(n-1)) adjacently sandwiched by each of the plurality of magnetic layers, where n?3.
    Type: Application
    Filed: April 8, 2020
    Publication date: October 29, 2020
    Inventors: Hiroaki HONJO, Tetsuo ENDOH, Hideo SATO, Shoji IKEDA
  • Patent number: 10804457
    Abstract: A magnetoresistive element includes a reference layer having a fixed magnetization direction and including a ferromagnetic material containing Fe or Co, a recording layer having a variable magnetization direction and including a ferromagnetic material, and one non-magnetic layer that is formed between the reference layer and the recording layer and that contains oxygen. One of the reference layer and the recording layer contains Fe. The three layers are arranged so that a magnetization direction of the one of the reference layer and the recording layer becomes perpendicular to a layer surface by an interfacial perpendicular magnetic anisotropy at an interface between the one of the reference layer and the recording layer and the one non-magnetic layer resulting from the one of the reference layer and the recording layer having a predetermined thickness. The one of the reference layer and the recording layer has a bcc structure.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: October 13, 2020
    Assignee: TOHOKU UNIVERSITY
    Inventors: Hideo Ohno, Shoji Ikeda, Fumihiro Matsukura, Masaki Endoh, Shun Kanai, Katsuya Miura, Hiroyuki Yamamoto
  • Patent number: 10749107
    Abstract: A magnetic tunnel junction element configured by stacking, in a following stack order, a fixed layer formed of a ferromagnetic body and in which a magnetization direction is fixed, a magnetic coupling layer formed of a nonmagnetic body, a reference layer formed of a ferromagnetic body and in which the magnetization direction is fixed, a barrier layer formed of a nonmagnetic body, and a recording layer formed of a ferromagnetic body, a barrier layer formed of a nonmagnetic body, and a recording layer formed by sandwiching an insertion layer formed of a nonmagnetic body between first and second ferromagnetic layers, wherein the magnetic coupling layer is formed using a sputtering gas in which a value of a ratio in which a mass number of an element used in the magnetic coupling layer divided by the mass number of the sputtering gas itself is 2.2 or smaller.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: August 18, 2020
    Assignee: TOHOKU UNIVERSITY
    Inventors: Hiroaki Honjo, Shoji Ikeda, Hideo Sato, Tetsuo Endoh, Hideo Ohno
  • Patent number: 10706996
    Abstract: A magnetic material includes a structure in which a first magnetic layer 1 and a second magnetic layer 2 are stacked such that each layer is formed at least partially in a stacking direction by substantially one atomic layer. The first magnetic layer contains Co as a principal component. The second magnetic layer includes at least Ni. The magnetic material has magnetic anisotropy in the stacking direction. Preferably, an atomic arrangement within a film surface of the first magnetic layer and the second magnetic layer has six-fold symmetry.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: July 7, 2020
    Assignee: TOHOKU UNIVERSITY
    Inventors: Shunsuke Fukami, Hideo Sato, Michihiko Yamanouchi, Shoji Ikeda, Hideo Ohno
  • Patent number: 10656225
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a static magnetic field magnet, a gradient coil, a space forming structure, a magnet supporting member, and a space forming structure supporter. The gradient coil is provided on an inner circumferential side of the static magnetic field magnet. The space forming structure forms a patient space on an inner circumferential side of the gradient coil. The magnet supporting member supports the static magnetic field magnet on a floor surface. The space forming structure supporter is attached to the magnet supporting member and supports the space forming structure.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: May 19, 2020
    Assignee: Canon Medical Systems Corporation
    Inventors: Hiromitsu Takamori, Shoji Ishizaki, Kaoru Ikeda
  • Patent number: 10658572
    Abstract: A magnetoresistance effect element includes first and second magnetic layers having a perpendicular magnetization direction, and a first non-magnetic layer disposed adjacent to the first magnetic layer and on a side opposite to a side on which the second magnetic layer is disposed. An interfacial perpendicular magnetic anisotropy exists at an interface between the first magnetic layer and the first non-magnetic layer, and the anisotropy causes the first magnetic layer to have a magnetization direction perpendicular to the surface of the layers. An atomic fraction of all magnetic elements to all magnetic and non-magnetic elements included in the second magnetic layer is smaller than that of the first magnetic layer.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: May 19, 2020
    Assignee: TOHOKU UNIVERSITY
    Inventors: Hideo Sato, Shoji Ikeda, Mathias Bersweiler, Hiroaki Honjo, Kyota Watanabe, Shunsuke Fukami, Fumihiro Matsukura, Kenchi Ito, Masaaki Niwa, Tetsuo Endoh, Hideo Ohno
  • Patent number: 10651369
    Abstract: Provided are a magneto resistive effect element with a stable magnetization direction perpendicular to a film plane and with a controlled magnetoresistance ratio, and a magnetic memory using the magneto resistive effect element. Ferromagnetic layers of the magneto resistive effect element are formed from a ferromagnetic material containing at least one type of 3d transition metal such that the magnetoresistance ratio is controlled, and the film thickness of the ferromagnetic layers is controlled on an atomic layer level such that the magnetization direction is changed from a direction in the film plane to a direction perpendicular to the film plane.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: May 12, 2020
    Assignee: TOHOKU UNIVERSITY
    Inventors: Hideo Ohno, Shoji Ikeda, Fumihiro Matsukura, Masaki Endoh, Shun Kanai, Hiroyuki Yamamoto, Katsuya Miura
  • Patent number: 10644234
    Abstract: A method for producing a magnetic memory includes: forming a magnetic film having a non-magnetic layer between a first magnetic layer and a second magnetic layer on a substrate having an electrode layer; performing annealing treatment at a first treatment temperature in a state where a magnetic field is applied in a direction perpendicular to a film surface of the first or the second magnetic layer in vacuum; forming a magnetic tunnel junction element; forming a protective film protecting the magnetic tunnel junction element; a formation accompanied by thermal history, in which a constituent element of a magnetic memory is formed after the protective film formation on the substrate; and implementing annealing treatment at a second treatment temperature lower than the first treatment temperature on the substrate in an annealing treatment chamber, in vacuum or inert gas wherein no magnetic field is applied.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: May 5, 2020
    Assignee: TOHOKU UNIVERSITY
    Inventors: Kenchi Ito, Tetsuo Endoh, Shoji Ikeda, Hideo Sato, Hideo Ohno, Sadahiko Miura, Masaaki Niwa, Hiroaki Honjo
  • Publication number: 20200096812
    Abstract: According to one embodiment, a display device includes a first substrate including a first basement and a first terminal, a second substrate including a second basement opposing the first terminal and spaced from the first terminal, and a second terminal, and includes a first hole penetrating the second basement, a connection member formed through the first hole, which electrically connects the first terminal and the second terminal to each other, and a light-shielding member which covers the connection member.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 26, 2020
    Inventors: Shoji HINATA, Shuichi OSAWA, Yoshikatsu IMAZEKI, Yoichi KAMIJO, Yoshihiro WATANABE, Masanobu IKEDA, Toyohiro SAKAI
  • Publication number: 20200090719
    Abstract: Provided is a magnetoresistance effect element in which the magnetization direction of the recording layer is perpendicular to the film surface and which has a high thermal stability factor ?, and a magnetic memory. A recording layer having a configuration of first magnetic layer/first non-magnetic coupling layer/first magnetic insertion layer/second non-magnetic coupling layer/second magnetic layer is sandwiched between the first and second non-magnetic layers and stacked so that a magnetic coupling force is generated between the first magnetic layer and the second magnetic layer.
    Type: Application
    Filed: December 28, 2017
    Publication date: March 19, 2020
    Inventors: Koichi NISHIOKA, Tetsuo ENDOH, Shoji IKEDA, Hiroaki HONJO, Hideo SATO, Hideo OHNO
  • Patent number: 10586580
    Abstract: A magnetic tunnel junction element with a high tunnel magnetic resistance ratio can prevent a recording layer from being damaged. A reference layer includes a ferromagnetic body, and has magnetization direction fixed in the vertical direction. A barrier layer includes non-magnetic body, and disposed on one surface side of the reference layer. A recording layer is disposed to sandwich barrier layer between itself and reference layer. The recording layer includes a first ferromagnetic layer including at least one of Co and Fe, and having a magnetization direction variable in a vertical direction; a first non-magnetic layer including at least one of Mg, MgO, C, Li, Al, and Si, second non-magnetic layer including at least one of Ta, Hf, W, Mo, Nb, Zr, Y, Sc, Ti, V, and Cr, and second ferromagnetic layer including at least one of Co and Fe, and having a magnetization direction variable in a vertical direction.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: March 10, 2020
    Assignee: TOHOKU UNIVERSITY
    Inventors: Hiroaki Honjo, Shoji Ikeda, Hideo Sato, Tetsuo Endoh, Hideo Ohno
  • Publication number: 20200044142
    Abstract: The present invention provides a magnetoresistance effect element which has a high thermal stability factor ? and in which a magnetization direction of a recording layer is a perpendicular direction with respect to a film surface, and a magnetic memory including the same. Magnetic layers of a recording layer of the magnetoresistance effect element are divided into at least two, and an Fe composition with respect to a sum total of atomic fractions of magnetic elements in each magnetic layer is changed before stacking the magnetic layers.
    Type: Application
    Filed: January 18, 2017
    Publication date: February 6, 2020
    Inventors: Hiroaki HONJO, Tetsuo ENDOH, Shoji IKEDA, Hideo SATO, Hideo OHNO
  • Publication number: 20190363245
    Abstract: A structure used in the formation of a spintronics element, the spintronics element to include a plurality of laminated layers, includes a substrate, a plurality of laminated layers formed on the substrate, an uppermost layer of the plurality of laminated layers being a non-magnetic layer containing oxygen, and a protection layer directly formed on the uppermost layer, the protection layer preventing alteration of characteristics of the uppermost layer while exposed in an atmosphere including H2O, a partial pressure of H2O in the atmosphere being equal to or larger than 10?4 Pa, no other layer being directly formed on the protection layer.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 28, 2019
    Applicant: TOHOKU UNIVERSITY
    Inventors: Soshi SATO, Masaaki NIWA, Hiroaki HONJO, Shoji IKEDA, Hideo OHNO, Tetsuo ENDO
  • Patent number: 10434043
    Abstract: The present invention provides a water-in-oil emulsion solid cosmetic that is further improved in terms of an excellent feeling in use (good spreadability and fresh feeling (texture)) obtained by incorporating a powder in a water phase, and that also has sufficient covering ability, stability even at high temperature, and long-lasting property. The present invention provides a water-in-oil emulsion solid cosmetic comprising an external oil phase comprising a liquid oil thickened or solidified with (A) wax and (B) disteardimonium hectorite, and an internal water phase comprising (C) an internal phase powder dispersed in an aqueous medium.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: October 8, 2019
    Assignee: SHISEIDO COMPANY, LTD.
    Inventors: Shoji Tajima, Tomoko Ikeda
  • Publication number: 20190304526
    Abstract: A magnetic tunnel junction element with a high MR ratio, and can prevent a recording layer from being damaged, and magnetic memory. A reference layer includes a ferromagnetic body, and has magnetization direction fixed in the vertical direction. A barrier layer includes non-magnetic body, and disposed on one surface side of the reference layer. A recording layer is disposed to sandwich barrier layer between itself and reference layer. The recording layer includes a first ferromagnetic layer including at least one of Co and Fe, and having a magnetization direction variable in vertical direction; a first non-magnetic layer including at least one of Mg, MgO, C, Li, Al, and Si, second non-magnetic layer including at least one of Ta, Hf, W, Mo, Nb, Zr, Y, Sc, Ti, V, and Cr, and second ferromagnetic layer including at least one of Co and Fe, and having a magnetization direction variable in vertical direction.
    Type: Application
    Filed: May 19, 2017
    Publication date: October 3, 2019
    Applicant: TOHOKU UNIVERSITY
    Inventors: Hiroaki HONJO, Shoji IKEDA, Hideo SATO, Tetsuo ENDOH, Hideo OHNO
  • Publication number: 20190304741
    Abstract: An evaluation method for an electronic device provided with an insulating film between a pair of electrode layers includes preparing a sample that has a tunnel barrier insulating film as the insulating film; irradiating the sample with electron beams from a plurality of angles to acquire a plurality of images; and performing image processing using the plurality of images to reconstruct a stereoscopic image and generate a cross-sectional image of the sample from the stereoscopic image.
    Type: Application
    Filed: March 21, 2019
    Publication date: October 3, 2019
    Inventors: Masaaki Niwa, Tetsuo Endoh, Shoji Ikeda, Kosuke Kimura