Patents by Inventor Masashi Kawasaki

Masashi Kawasaki 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: 20200296146
    Abstract: A communication management system manages a session in which a plurality of terminal apparatuses shares a stroke image. The communication management system includes circuitry configured to: manage stroke information including a plurality of pieces of stroke data representing the stroke image; receive, from a first terminal apparatus, group operation information for designating one or more pieces of stroke data, which are operation targets, from among the plurality of pieces of stroke data; and restrict, based on the group operation information, an operation regarding the one or more pieces of stroke data by a second terminal apparatus, which is different from the first terminal apparatus.
    Type: Application
    Filed: March 12, 2020
    Publication date: September 17, 2020
    Inventors: Hiroshi HINOHARA, Shigeru NAKAMURA, Takeshi HOMMA, Yuichi KAWASAKI, Masashi OGASAWARA, Atsushi MIYAMOTO, Hideki SHIRO, Kenichiro MORITA
  • Publication number: 20200296145
    Abstract: A communication terminal includes circuitry configured to: start a download of a plurality of stroke data items corresponding to a plurality of stroke images drawn at another communication terminal from a communication management system; receive capture image data obtained by capturing a display screen displayed at the another communication terminal by the another communication terminal, from an image storage device that stores the capture image data; when the download of the plurality of stroke data items is not completed, control a display of the communication terminal to display a capture image corresponding to the received capture image data; and when the download of the plurality of stroke data items is completed, control the display to switch an image to be displayed on the display from the capture image currently being displayed to the plurality of stroke images corresponding to the downloaded plurality of stroke data items.
    Type: Application
    Filed: March 4, 2020
    Publication date: September 17, 2020
    Inventors: Takeshi HORIUCHI, Shigeru NAKAMURA, Yuichi KAWASAKI, Masashi OGASAWARA, Hiroshi HINOHARA, Takeshi HOMMA, Atsushi MIYAMOTO, Takafumi TAKEDA
  • Publication number: 20200278823
    Abstract: A screen sharing system is configured to perform screen sharing between a first information processing apparatus and a second information processing apparatus. The first information processing apparatus is configured to acquire, as screen-sharing information, an image displayed on the first information processing apparatus, and transmit the screen-sharing information to a first server, when a data amount of the screen-sharing information is below a threshold value, and transmit the screen-sharing information to a second server and transmit, to the first server, storage destination information indicating a storage destination of the screen-sharing information, when the data is greater than or equal to the threshold value.
    Type: Application
    Filed: February 27, 2020
    Publication date: September 3, 2020
    Inventors: Yuichi KAWASAKI, Shigeru NAKAMURA, Masashi OGASAWARA, Atsushi MIYAMOTO, Hiroshi HINOHARA, Takeshi HOMMA
  • Publication number: 20190376736
    Abstract: A refrigerator supplies cool air generated by a cooler to a plurality of storage compartments by cooling fan (27). Cooling fan (27) is formed of multi-blade fan (27a) which blows cool air in a circumferential direction. Guide case (33) of cooling fan (27) has discharge opening portion (35) which supplies cool air to the plurality of storage compartments at one portion.
    Type: Application
    Filed: August 21, 2019
    Publication date: December 12, 2019
    Inventors: Tatsuya KAWASAKI, Masashi YUASA, Yoichi ABIRU, Itsuo TANAKA
  • Patent number: 10468586
    Abstract: An electronic device is provided, including: a first drive electrode; a second drive electrode that is spaced apart from the first drive electrode; and a topological insulator that contacts both of the first drive electrode and the second drive electrode and has magnetism, wherein the topological insulator includes a first region having a first coercivity and a second region having a second coercivity that is different from the first coercivity. A fabrication method of a topological insulator is also provided, including: preparing a topological insulator having magnetism and a first coercivity; and forming a second region having a second coercivity that is different from the first coercivity by irradiating a partial region of the topological insulator with ions.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: November 5, 2019
    Assignee: RIKEN
    Inventors: Ryutaro Yoshimi, Masataka Mogi, Naoto Nagaosa, Masashi Kawasaki, Yoshinori Tokura, Wataru Koshibae
  • Patent number: 10408160
    Abstract: A manufacturing method of a cylinder block (10) includes: a step of forming a slit (14) to flow refrigerant therein, between adjacent cylinder bores (CB) among a plurality of cylinder bores provided in a cylinder portion (11); a step of placing a first cover (20a) in the slit and welding the first cover to the cylinder portion by laser beam welding; and a step of placing a second cover (20b) on the first cover and joining the second cover to the cylinder portion by friction stir welding.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: September 10, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Minoru Kawasaki, Tomoya Okazaki, Masashi Furukawa
  • Publication number: 20190214513
    Abstract: A photoelectric conversion device includes a photoelectric conversion element formed of a polar material and including no p-n junction, and first and second electrodes provided on the photoelectric conversion element and arranged at an interval. Space-inversion symmetry of a structure of the photoelectric conversion element is broken. The first and second electrodes are each formed of a metal material that generates no substantial potential barrier preventing majority carriers for the photoelectric conversion element from moving from the electrode to the photoelectric conversion element.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 11, 2019
    Applicant: RIKEN
    Inventors: Masao NAKAMURA, Masashi KAWASAKI, Yoshinori TOKURA, Naoto NAGAOSA, Takahiro MORIMOTO, Yoshio KANEKO
  • Publication number: 20190160878
    Abstract: The tire comprises a tread portion whose position when mounted on a vehicle is specified and having an asymmetric pattern with respect to a tire equator. The tread portion includes an outer shoulder main groove, an outer crown main groove, an inner crown main groove, an outer crown land region, and a center crown land region. The outer crown land region is provided with first outer crown sipes and second outer crown sipes. The center crown land region is provided with first center crown sipes and second center crown sipes. Each of the second outer crown sipes is arranged so as to be smoothly continuous with a respective one of the first center crown sipes with the outer crown main groove therebetween.
    Type: Application
    Filed: November 9, 2018
    Publication date: May 30, 2019
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masashi WAKASUGI, Yuzo KAWASAKI, Takahiro KAWANOUE
  • Patent number: 10217931
    Abstract: Provided is a magnetic element which can generate a skyrmion by a stacked film including a magnetic layer and a non-magnetic layer, and a skyrmion memory to which the magnetic element is applied and the like. Provided is a magnetic element for generating a skyrmion, the magnetic element comprising a two-dimensional stacked film, wherein the two-dimensional stacked film is at least one or more multiple layered films including a magnetic film and a non-magnetic film stacked on the magnetic film. Also, provided is a skyrmion memory including a plurality of the magnetic elements stacked in a thickness direction.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: February 26, 2019
    Assignee: RIKEN
    Inventors: Masao Nakamura, Jobu Matsuno, Masashi Kawasaki, Yoshinori Tokura, Yoshio Kaneko
  • Patent number: 10141068
    Abstract: A magnetic element capable of generating and erasing a skyrmion, including a magnet shaped as a thin layer and including a structure surrounded by a nonmagnetic material; a current path provided surrounding an end region including an end portion of the magnet, on one surface of the magnet; and a skyrmion sensor that detects the generation and erasing of the skyrmion. With Wm being width of the magnet and hm being height of the magnet, a size of the magnet, with the skyrmion of a diameter ? being generated, is such that 2?>Wm>?/2 and 2?>hm>?/2. With W being width of the end region in a direction parallel to the end portion of the magnet and h being height of the end region in a direction perpendicular to the end portion of the magnet, the end region is such that ??W>?/4 and 2?>h>?/2.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: November 27, 2018
    Assignee: RIKEN
    Inventors: Naoto Nagaosa, Wataru Koshibae, Junichi Iwasaki, Masashi Kawasaki, Yoshinori Tokura, Yoshio Kaneko
  • Publication number: 20180175285
    Abstract: An electronic device is provided, including: a first drive electrode; a second drive electrode that is spaced apart from the first drive electrode; and a topological insulator that contacts both of the first drive electrode and the second drive electrode and has magnetism, wherein the topological insulator includes a first region having a first coercivity and a second region having a second coercivity that is different from the first coercivity. A fabrication method of a topological insulator is also provided, including: preparing a topological insulator having magnetism and a first coercivity; and forming a second region having a second coercivity that is different from the first coercivity by irradiating a partial region of the topological insulator with ions.
    Type: Application
    Filed: February 12, 2018
    Publication date: June 21, 2018
    Inventors: Ryutaro YOSHIMI, Masataka MOGI, Naoto NAGAOSA, Masashi KAWASAKI, Yoshinori TOKURA, Wataru KOSHIBAE
  • Patent number: 10003010
    Abstract: Provided is a magnetic element capable of generating one skyrmion and erasing the one skyrmion. The magnetic element includes a magnet shaped like a substantially rectangular flat plate, an upstream electrode connected to the magnet in a width Wm direction of the magnet and made of a non-magnetic metal, a downstream electrode connected to the magnet in the width Wm direction to oppose the upstream electrode and made of a non-magnetic metal, and a skyrmion sensor configured to detect the skyrmion. Here, a width Wm of the substantially rectangular magnet is such that 3·?>Wm??, where ? denotes a diameter of the skyrmion, a length Hm of the substantially rectangular magnet is such that 2·?>Hm??, and the magnet has a notch structure at the edge between the upstream electrode and the downstream electrode.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: June 19, 2018
    Assignee: RIKEN
    Inventors: Naoto Nagaosa, Wataru Koshibae, Junichi Iwasaki, Masashi Kawasaki, Yoshinori Tokura, Yoshio Kaneko
  • Patent number: 9859017
    Abstract: To provide a magnetic element capable of performing skyrmion transfer, a skyrmion memory to which this magnetic element is applied, and a shift register, for example, a magnetic element capable of performing skyrmion transfer is provided, the magnetic element providing a transverse transfer arrangement in which the skyrmion is transferred substantially perpendicular to a current between an upstream electrode and a downstream electrode, and including a plurality of stable positions in which the skyrmion exists more stably than in other regions of a magnet, and a skyrmion sensor that detects a position of the skyrmion.
    Type: Grant
    Filed: March 5, 2017
    Date of Patent: January 2, 2018
    Assignee: RIKEN
    Inventors: Naoto Nagaosa, Wataru Koshibae, Junichi Iwasaki, Masashi Kawasaki, Yoshinori Tokura, Yoshio Kaneko
  • Patent number: 9824712
    Abstract: A magnetic storage media which has an endurance (durability) characteristics close to an infinite number of writing times of data and a data retention (holding) characteristics close to permanency, and is ultra-high-speed writable and erasable, and a data storage device and an image storage device which apply this magnetic storage media are provided. A magnetic storage media includes a thin layer magnet and a magnetic field generating unit arranged facing a surface of the magnet, and is capable of creating or eliminating a skyrmion by applying heat energy to another surface of the magnet positioned on the opposite side of the surface of the magnet, and a skyrmion memory includes the magnetic storage media.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: November 21, 2017
    Assignee: RIKEN
    Inventors: Naoto Nagaosa, Wataru Koshibae, Junichi Iwasaki, Masashi Kawasaki, Yoshinori Tokura, Yoshio Kaneko
  • Patent number: 9748000
    Abstract: Provided is a skyrmion memory circuit capable of circularly transferring a magnetic element skyrmion, comprising one or more current paths in a magnet having a closed-path pattern that are provided surrounding an end region including an end portion of the magnet in a plane of the magnet with the closed-path pattern, and applying current between an outer terminal connected to an outer circumferential portion of the closed-path pattern and an inner circumference electrode connected to an inner circumferential portion of the closed-path pattern, transferring the skyrmion in a direction substantially perpendicular to the direction of the applied current, and circulating the skyrmion in the magnet with the closed-path pattern.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: August 29, 2017
    Assignee: RIKEN
    Inventors: Naoto Nagaosa, Wataru Koshibae, Junichi Iwasaki, Masashi Kawasaki, Yoshinori Tokura, Yoshio Kaneko
  • Publication number: 20170206921
    Abstract: A magnetic storage media which has an endurance (durability) characteristics close to an infinite number of writing times of data and a data retention (holding) characteristics close to permanency, and is ultra-high-speed writable and erasable, and a data storage device and an image storage device which apply this magnetic storage media are provided. A magnetic storage media includes a thin layer magnet and a magnetic field generating unit arranged facing a surface of the magnet, and is capable of creating or eliminating a skyrmion by applying heat energy to another surface of the magnet positioned on the opposite side of the surface of the magnet, and a skyrmion memory includes the magnetic storage media.
    Type: Application
    Filed: February 3, 2017
    Publication date: July 20, 2017
    Inventors: Naoto NAGAOSA, Wataru KOSHIBAE, Junichi IWASAKI, Masashi KAWASAKI, Yoshinori TOKURA, Yoshio KANEKO
  • Publication number: 20170178746
    Abstract: To provide a magnetic element capable of performing skyrmion transfer, a skyrmion memory to which this magnetic element is applied, and a shift register, for example, a magnetic element capable of performing skyrmion transfer is provided, the magnetic element providing a transverse transfer arrangement in which the skyrmion is transferred substantially perpendicular to a current between an upstream electrode and a downstream electrode, and including a plurality of stable positions in which the skyrmion exists more stably than in other regions of a magnet, and a skyrmion sensor that detects a position of the skyrmion.
    Type: Application
    Filed: March 5, 2017
    Publication date: June 22, 2017
    Inventors: Naoto NAGAOSA, Wataru KOSHIBAE, Junichi IWASAKI, Masashi KAWASAKI, Yoshinori TOKURA, Yoshio KANEKO
  • Publication number: 20170179376
    Abstract: Provided is a magnetic element which can generate a skyrmion by a stacked film including a magnetic layer and a non-magnetic layer, and a skyrmion memory to which the magnetic element is applied and the like. Provided is a magnetic element for generating a skyrmion, the magnetic element comprising a two-dimensional stacked film, wherein the two-dimensional stacked film is at least one or more multiple layered films including a magnetic film and a non-magnetic film stacked on the magnetic film. Also, provided is a skyrmion memory including a plurality of the magnetic elements stacked in a thickness direction.
    Type: Application
    Filed: March 6, 2017
    Publication date: June 22, 2017
    Inventors: Masao NAKAMURA, Jobu MATSUNO, Masashi KAWASAKI, Yoshinori TOKURA, Yoshio KANEKO
  • Publication number: 20170178748
    Abstract: A magnetic element capable of generating and erasing a skyrmion, including a magnet shaped as a thin layer and including a structure surrounded by a nonmagnetic material; a current path provided surrounding an end region including an end portion of the magnet, on one surface of the magnet; and a skyrmion sensor that detects the generation and erasing of the skyrmion. With Wm being width of the magnet and hm being height of the magnet, a size of the magnet, with the skyrmion of a diameter ? being generated, is such that 2?>Wm>?/2 and 2?>hm>?/2. With W being width of the end region in a direction parallel to the end portion of the magnet and h being height of the end region in a direction perpendicular to the end portion of the magnet, the end region is such that ??W>?/4 and 2?>h>?/2.
    Type: Application
    Filed: March 1, 2017
    Publication date: June 22, 2017
    Inventors: Naoto NAGAOSA, Wataru KOSHIBAE, Junichi IWASAKI, Masashi KAWASAKI, Yoshinori TOKURA, Yoshio KANEKO
  • Publication number: 20170179375
    Abstract: Provided is a magnetic element capable of generating one skyrmion and erasing the one skyrmion. The magnetic element includes a magnet shaped like a substantially rectangular flat plate, an upstream electrode connected to the magnet in a width Wm direction of the magnet and made of a non-magnetic metal, a downstream electrode connected to the magnet in the width Wm direction to oppose the upstream electrode and made of a non-magnetic metal, and a skyrmion sensor configured to detect the skyrmion. Here, a width Wm of the substantially rectangular magnet is such that 3·?>Wm??, where ? denotes a diameter of the skyrmion, a length Hm of the substantially rectangular magnet is such that 2·?>Hm??, and the magnet has a notch structure at the edge between the upstream electrode and the downstream electrode.
    Type: Application
    Filed: March 3, 2017
    Publication date: June 22, 2017
    Inventors: Naoto NAGAOSA, Wataru KOSHIBAE, Junichi IWASAKI, Masashi KAWASAKI, Yoshinori TOKURA, Yoshio KANEKO