Patents by Inventor Takayuki Nishio

Takayuki Nishio 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: 10439788
    Abstract: According to one embodiment, a wireless communication device includes: a communicator and controlling circuitry. The communicator is configured to simultaneously communicate a first frame and a second frame, and after the first frame and the second frame are communicated, communicate a third frame indicating acknowledgement of the first frame and a fourth frame indicating acknowledgement of the second frame. The controlling circuitry is configured to control to prevent the third frame and the fourth frame from being simultaneously communicated.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: October 8, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Toshihisa Nabetani, Tsuguhide Aoki, Takayuki Nishio, Masahiro Morikura, Koji Yamamoto
  • Patent number: 9942844
    Abstract: To save power consumed due to reception of frames destined to other communication devices and enable power saving by prolonging a sleep state. A communication device is provided including a communication unit which communicates with a base station, a switching unit which switches an operation mode of the communication unit from a normal mode for communicating with the base station to a power saving mode for uncommunicating with the base station, when the communication unit receives data from the base station in a state in which the communication unit does not transmit a data transmission request to the base station, and a determination unit which determines a duration time of the power saving mode, based on a data length of the data received.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: April 10, 2018
    Assignees: Kyoto University, Allied Telesis Hildings K.K.
    Inventors: Masahiro Morikura, Koji Yamamoto, Takayuki Nishio, Tomoyuki Sugihara
  • Patent number: 9794893
    Abstract: There is provided a wireless communication control device and a wireless communication control method, which control the transmission power of radio waves of base stations appropriately to reduce interference between cells. The wireless communication control method according to the present invention is a method of controlling plural base stations in a wireless communication system in which the plural base stations cover a target area with radio waves of a first radio wave strength or more, the method causing a computer to execute: a step of acquiring a relative positional relationship of the plural base stations; a step of identifying a base station, located in the neighborhood of the boundary of the target area, from the relative positional relationship of the plural base stations; and a step of lowering the transmission power of radio waves of a base station other than the identified base station among the plural base stations.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: October 17, 2017
    Assignee: ALLIED TELESIS HOLDINGS K.K.
    Inventors: Koji Yamamoto, Takayuki Nishio, Masahiro Morikura, Tomoyuki Sugihara
  • Publication number: 20170245222
    Abstract: There is provided a wireless communication control device and a wireless communication control method, which control the transmission power of radio waves of base stations appropriately to reduce interference between cells. The wireless communication control method according to the present invention is a method of controlling plural base stations in a wireless communication system in which the plural base stations cover a target area with radio waves of a first radio wave strength or more, the method causing a computer to execute: a step of acquiring a relative positional relationship of the plural base stations; a step of identifying a base station, located in the neighborhood of the boundary of the target area, from the relative positional relationship of the plural base stations; and a step of lowering the transmission power of radio waves of a base station other than the identified base station among the plural base stations.
    Type: Application
    Filed: August 10, 2016
    Publication date: August 24, 2017
    Inventors: Koji YAMAMOTO, Takayuki NISHIO, Masahiro MORIKURA, Tomoyuki SUGIHARA
  • Publication number: 20170026162
    Abstract: According to one embodiment, a wireless communication device includes: a communicator and controlling circuitry. The communicator is configured to simultaneously communicate a first frame and a second frame, and after the first frame and the second frame are communicated, communicate a third frame indicating acknowledgement of the first frame and a fourth frame indicating acknowledgement of the second frame. The controlling circuitry is configured to control to prevent the third frame and the fourth frame from being simultaneously communicated.
    Type: Application
    Filed: July 21, 2016
    Publication date: January 26, 2017
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Toshihisa NABETANI, Tsuguhide AOKI, Takayuki NISHIO, Masahiro MORIKURA, Koji YAMAMOTO
  • Publication number: 20160205624
    Abstract: To save power consumed due to reception of frames destined to other communication devices and enable power saving by prolonging a sleep state. A communication device is provided including a communication unit which communicates with a base station, a switching unit which switches an operation mode of the communication unit from a normal mode for communicating with the base station to a power saving mode for uncommunicating with the base station, when the communication unit receives data from the base station in a state in which the communication unit does not transmit a data transmission request to the base station, and a determination unit which determines a duration time of the power saving mode, based on a data length of the data received.
    Type: Application
    Filed: January 11, 2016
    Publication date: July 14, 2016
    Inventors: Masahiro Morikura, Koji Yamamoto, Takayuki Nishio, Tomoyuki Sugihara
  • Patent number: 7481895
    Abstract: Disclosed is an isotropic SmFeN powdery magnet material for producing resin-bonded magnets. The magnet powder is prepared by melt-spinning of a molten alloy and nitriding the alloy powder thus obtained to form a magnet alloy having an alloy composition of one of the formulae, by atomic %: SmxFe100-x-vNv, SmxFe100-x-y-vM1yNv and SmxFe100-x-z-vM2zNv wherein M1 is at least one member selected from the group consisting of Hf and Zr; and M2 is at least one member selected from the group consisting of Si, Nb, Ti, Ga, Al, Ta and C; 7?x?12, 0.1?y?1.5, 0.1?z?1.0 and 0.5?v?20; the crystal structure is TbCu7 type; and the thickness of the flakes is 10-40 ?m.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: January 27, 2009
    Assignee: Daido Steel Co., Ltd.
    Inventors: Takahiko Iriyama, Ryo Omatsuzawa, Takayuki Nishio
  • Publication number: 20040144450
    Abstract: Disclosed is an isotropic SmFeN powdery magnet material for producing resin-bonded magnets.
    Type: Application
    Filed: January 20, 2004
    Publication date: July 29, 2004
    Inventors: Takahiko Iriyama, Ryo Omatsuzawa, Takayuki Nishio
  • Patent number: 6758918
    Abstract: Disclosed is an isotropic SmFeN powdery magnet material for producing resin-bonded magnets. The magnet powder is prepared by melt-spinning of a molten alloy and nitriding the alloy powder thus obtained to form a magnet alloy having an alloy composition of one of the formulae, by atomic %: SmxFe100-x-vNv, SmxFe100-x-y-vM1yNv and SmxFe100-x-z-vM2zNv wherein M1 is at least one member selected from the group consisting of Hf and Zr; and M2 is at least one member selected from the group consisting of Si, Nb, Ti, Ga, Al, Ta and C; 7≦x≦12, 0.1≦y≦1.5, 0.1≦z≦1.0 and 0.5≦v≦20; the crystal structure is TbCu7 type; and the thickness of the flakes is 10-40 &mgr;m.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: July 6, 2004
    Assignee: Diado Steel Co., Ltd.
    Inventors: Takahiko Iriyama, Ryo Omatsuzawa, Takayuki Nishio
  • Publication number: 20020014283
    Abstract: Disclosed is an isotropic SmFeN powdery magnet material for producing resin-bonded magnets.
    Type: Application
    Filed: May 29, 2001
    Publication date: February 7, 2002
    Inventors: Takahiko Iriyama, Ryo Omatsuzawa, Takayuki Nishio
  • Patent number: 5547924
    Abstract: A superconductive ceramic composite material with high strength and capable of plastic deformation is prepared by mixing and sintering a superconductive powder represented by (RE.sub.x AE.sub.1-x).sub.1-y Cu.sub.y O.sub.z (RE represents Y or a rare-earth element having an atomic number of 57-71, or a combination of at least two of these elements, AE is at least one of alkaline earth elements Ca, Sr and Ba, x is 0.13-0.67, y is 0.25-0.67, and z is 1.08-1.17) and a metal powder M (M represents at least one of noble metals Rh, Pd, Ag, Ir, Pt and Au), in a defined ratio. The deformation (e.g., rolling) is followed by reheat-treatment (resintering). The powder mixture can be enclosed in a metallic capsule or made into a clad sheet by interposing the powder within two metallic sheets, and deformed (drawn or press formed into a desired shape) followed by sintering. The composite material may contain a superconductive network of such grains.
    Type: Grant
    Filed: September 21, 1995
    Date of Patent: August 20, 1996
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Yoshitaka Ito, Masami Ishii, Takayuki Nishio, Uichiro Mizutani, Yuh Yamada, Fumihiko Ogasawara, Motohiro Suganuma