Patents by Inventor Hiroto Sugahara

Hiroto Sugahara 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: 20220001664
    Abstract: A printing apparatus includes: power supply circuits including at least a first power supply circuit and a second power supply circuit, the power supply circuits having mutually different output voltages; and a head including nozzles, the nozzles forming groups arranged in a first direction, each of the nozzles being associated with any one of the power supply circuits. The groups include a first group and a second group adjacent to each other in the first direction. The first group is formed by nozzles associated with the first power supply circuit and nozzles associated with the second power supply circuit. The second group is formed by nozzles associated with the first power supply circuit and nozzles associated with the second power supply circuit.
    Type: Application
    Filed: July 6, 2021
    Publication date: January 6, 2022
    Inventors: Haru Inoue, Hiroto Sugahara
  • Publication number: 20210329630
    Abstract: A radio communication system includes a first base station that manages a first cell (110), a second base station (12) that manages a second cell (120), and a radio terminal (2). The radio terminal (2) supports dual connectivity involving a bearer split in which a first network bearer between the radio terminal (2) and a core network (3) is split over the first base station (11) and the second base station (12). The first base station (11) receives, from the second base station (12), bearer split status information about communication of the first network bearer in the second base station (12), and performs control of an access stratum related to the first network bearer. It is thus possible to contribute, for example, to an improvement in control of an access stratum when dual connectivity involving a bearer split is performed.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 21, 2021
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Hiroto SUGAHARA, Hiroaki AMINAKA
  • Publication number: 20210300036
    Abstract: A liquid discharge head includes: a channel substrate having a nozzle and a channel communicating with the nozzle; a driving element arranged on the channel substrate; and a driving signal generating circuit which generates a driving signal to drive the driving element. The driving signal includes a non-discharge driving signal by which the driving element is driven so that liquid in the channel is not discharged from the nozzle. The non-discharge driving signal includes at least one first slight-vibration waveform and at least one second slight-vibration waveform. The first slight-vibration waveform is a waveform by which the driving element is displaced by a first displacement amount. The second slight-vibration waveform is a waveform by which the driving element is displaced by a second displacement amount that is larger than the first displacement amount. The at least one second slight-vibration waveform follows after the at least one first slight-vibration waveform.
    Type: Application
    Filed: March 4, 2021
    Publication date: September 30, 2021
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Haru INOUE, Wataru NARUSE, Hiroto SUGAHARA
  • Patent number: 11089588
    Abstract: A radio communication system includes a first base station that manages a first cell (110), a second base station (12) that manages a second cell (120), and a radio terminal (2). The radio terminal (2) supports dual connectivity involving a bearer split in which a first network bearer between the radio terminal (2) and a core network (3) is split over the first base station (11) and the second base station (12). The first base station (11) receives, from the second base station (12), bearer split status information about communication of the first network bearer in the second base station (12), and performs control of an access stratum related to the first network bearer. It is thus possible to contribute, for example, to an improvement in control of an access stratum when dual connectivity involving a bearer split is performed.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: August 10, 2021
    Assignee: NEC CORPORATION
    Inventors: Hisashi Futaki, Hiroto Sugahara, Hiroaki Aminaka
  • Publication number: 20210235295
    Abstract: A radio terminal (2) is used in a radio communication system (100) and communicates with a radio station (1). The radio terminal (2) includes a measurement unit (20). The measurement unit (20) operates to perform, using a terminal measurement procedure for executing a first terminal measurement corresponding to radio access technology applied to the radio communication system (100), a second terminal measurement of a shared frequency shared by a plurality of radio systems including the radio communication system (100).
    Type: Application
    Filed: April 13, 2021
    Publication date: July 29, 2021
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Hiroaki AMINAKA, Hiroto SUGAHARA, Yoshikazu KAKURA, Kazushi MURAOKA
  • Publication number: 20210217950
    Abstract: A method for manufacturing a piezoelectric actuator is disclosed that includes forming a vibration plate, forming a plurality of electrodes on the vibration plate, forming a piezoelectric layer on the electrodes, and forming a common electrode on the piezoelectric layer.
    Type: Application
    Filed: March 31, 2021
    Publication date: July 15, 2021
    Inventors: Hiroto Sugahara, Kazuo Kobayashi
  • Patent number: 11012876
    Abstract: A radio terminal (2) is used in a radio communication system (100) and communicates with a radio station (1). The radio terminal (2) includes a measurement unit (20). The measurement unit (20) operates to perform, using a terminal measurement procedure for executing a first terminal measurement corresponding to radio access technology applied to the radio communication system (100), a second terminal measurement of a shared frequency shared by a plurality of radio systems including the radio communication system (100).
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: May 18, 2021
    Assignee: NEC CORPORATION
    Inventors: Hisashi Futaki, Hiroaki Aminaka, Hiroto Sugahara, Yoshikazu Kakura, Kazushi Muraoka
  • Patent number: 10978634
    Abstract: A method for manufacturing a piezoelectric actuator is disclosed that includes forming a vibration plate, forming a plurality of electrodes on the vibration plate, forming a piezoelectric layer on the electrodes, and forming a common electrode on the piezoelectric layer.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: April 13, 2021
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hiroto Sugahara, Kazuo Kobayashi
  • Publication number: 20210060951
    Abstract: A printing apparatus includes: power supply circuits including at least first and second power supply circuits; a head including nozzles, the nozzles forming groups arranged in a first direction, each of the groups including nozzle arrays arranged in the first direction, each of the nozzle arrays extending in a second direction intersecting with the first direction, each of the nozzles being associated with any of the power supply circuits; and a memory storing information. The information indicates correspondence relationships between the nozzles and the power supply circuits, between the nozzles and the groups, and between the nozzles and the nozzle arrays. Printing is performed by driving the head based on the information. The groups include a first group and a second group adjacent to each other in the first direction. The first group includes a first nozzle array adjacent to the second group in the first direction.
    Type: Application
    Filed: September 3, 2020
    Publication date: March 4, 2021
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Haru Inoue, Hiroto Sugahara, Taro Nagano, Daiki Kato
  • Publication number: 20200351684
    Abstract: A radio terminal (2) is used in a radio communication system (100) and communicates with a radio station (1). The radio terminal (2) includes a measurement unit (20). The measurement unit (20) operates to perform, using a terminal measurement procedure for executing a first terminal measurement corresponding to radio access technology applied to the radio communication system (100), a second terminal measurement of a shared frequency shared by a plurality of radio systems including the radio communication system (100).
    Type: Application
    Filed: July 17, 2020
    Publication date: November 5, 2020
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Hiroaki AMINAKA, Hiroto SUGAHARA, Yoshikazu KAKURA, Kazushi MURAOKA
  • Publication number: 20200314839
    Abstract: A radio communication system includes a first base station (11) that manages a first cell (110), a second base station (12) that manages a second cell (120), and a radio terminal (2). The radio terminal (2) supports dual connectivity involving a bearer split in which a first network bearer between the radio terminal (2) and a core network (3) is split over the first base station (11) and the second base station (12). The first base station (11) receives, from the second base station (12), bearer split status information about communication of the first network bearer in the second base station (12), and performs control of an access stratum related to the first network bearer. It is thus possible to contribute, for example, to an improvement in control of an access stratum when dual connectivity involving a bearer split is performed.
    Type: Application
    Filed: June 16, 2020
    Publication date: October 1, 2020
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Hiroto SUGAHARA, Hiroaki AMINAKA
  • Patent number: 10750389
    Abstract: A radio terminal (2) is used in a radio communication system (100) and communicates with a radio station (1). The radio terminal (2) includes a measurement unit (20). The measurement unit (20) operates to perform, using a terminal measurement procedure for executing a first terminal measurement corresponding to radio access technology applied to the radio communication system (100), a second terminal measurement of a shared frequency shared by a plurality of radio systems including the radio communication system (100).
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: August 18, 2020
    Assignee: NEC Corporation
    Inventors: Hisashi Futaki, Hiroaki Aminaka, Hiroto Sugahara, Yoshikazu Kakura, Kazushi Muraoka
  • Patent number: 10721728
    Abstract: A radio communication system includes a first base station (11) that manages a first cell (110), a second base station (12) that manages a second cell (120), and a radio terminal (2). The radio terminal (2) supports dual connectivity involving a bearer split in which a first network bearer between the radio terminal (2) and a core network (3) is split over the first base station (11) and the second base station (12). The first base station (11) receives, from the second base station (12), bearer split status information about communication of the first network bearer in the second base station (12), and performs control of an access stratum related to the first network bearer. It is thus possible to contribute, for example, to an improvement in control of an access stratum when dual connectivity involving a bearer split is performed.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: July 21, 2020
    Assignee: NEC Corporation
    Inventors: Hisashi Futaki, Hiroto Sugahara, Hiroaki Aminaka
  • Publication number: 20200092736
    Abstract: A radio terminal (2) is used in a radio communication system (100) and communicates with a radio station (1). The radio terminal (2) includes a measurement unit (20). The measurement unit (20) operates to perform, using a terminal measurement procedure for executing a first terminal measurement corresponding to radio access technology applied to the radio communication system (100), a second terminal measurement of a shared frequency shared by a plurality of radio systems including the radio communication system (100).
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Hiroaki AMINAKA, Hiroto SUGAHARA, Yoshikazu KAKURA, Kazushi MURAOKA
  • Patent number: 10569548
    Abstract: An ink-jet printer, including: an ink-jet head; and a head moving device for moving the head in a scanning direction, wherein the ink-jet head includes a first head unit having a first nozzle row from which first ink is ejected and a second nozzle row from which second ink that differs in color from the first ink is ejected, a second head unit disposed so as to be shifted from the first head unit in a nozzle arrangement direction by a distance less than a nozzle pitch, and a third head unit disposed between the first and second head units in the scanning direction so as to be shifted from the first head unit in the nozzle arrangement direction by a distance corresponding to a predetermined natural number multiple of the nozzle pitch, the third head unit having fifth and sixth nozzle rows from which the first ink is ejected.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: February 25, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hiroto Sugahara
  • Patent number: 10568154
    Abstract: A radio terminal (1) receives a request and a radio configuration from a network (100) when the radio terminal (1) can connect to the network (100). The request requests transmission of the radio configuration. The radio configuration includes a radio parameter for sidelink communication (102) with a second radio terminal (2) which is in a state of being unable to connect to the network (100). The sidelink communication includes at least one of direct discovery and direct communication. The radio terminal (1) is further configured to transmit the radio configuration in response to this request, and to perform the sidelink communication in accordance with the radio configuration with the second radio terminal (2) that has received the radio configuration. It is thus, for example, possible to contribute to improvement of the sidelink communication in the partial coverage.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: February 18, 2020
    Assignee: NEC Corporation
    Inventors: Hiroaki Aminaka, Hiroto Sugahara
  • Patent number: 10531504
    Abstract: A base station (2) is configured to schedule radio resources to device-to-device (D2D) transmissions (101A, 101B and 101C) performed by D2D communication pairs (3A, 3B and 3C) in accordance with an allocation rule that permits two D2D communication pairs (3A and 3C) that are not in proximity to each other to share an identical radio resource but prohibits two D2D communication pairs (3A and 3B) in proximity to each other from sharing an identical radio resource. Each D2D transmission (101) includes wirelessly transmitting from one radio terminal (1) directly to the other radio terminal (1) in each D2D communication pair (3) without passing through the base station (2). It is, thus, possible to enable efficient spatial reuse of radio resources in D2D transmissions performed by D2D communication pairs.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: January 7, 2020
    Assignee: NEC CORPORATION
    Inventors: Kazushi Muraoka, Hiroto Sugahara
  • Patent number: 10524146
    Abstract: A radio terminal (2) is used in a radio communication system (100) and communicates with a radio station (1). The radio terminal (2) includes a measurement unit (20). The measurement unit (20) operates to perform, using a terminal measurement procedure for executing a first terminal measurement corresponding to radio access technology applied to the radio communication system (100), a second terminal measurement of a shared frequency shared by a plurality of radio systems including the radio communication system (100).
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: December 31, 2019
    Assignee: NEC Corporation
    Inventors: Hisashi Futaki, Hiroaki Aminaka, Hiroto Sugahara, Yoshikazu Kakura, Kazushi Muraoka
  • Patent number: 10492098
    Abstract: A transmitting terminal (1A) transmits first D2D control information (522, 523) in one or more subframes within a first subframe pool (511) within a first D2D control period (501) and performs data transmission (531-534) in accordance with the first D2D control information (522, 523) in one or more subframes within a second subframe pool (512) within the first D2D control period (501). The first D2D control information (522, 523) contains a second information element indicating whether the first D2D control information (522, 523) is valid in at least one D2D control period (502, 503) occurring after the first D2D control period (501). This makes it possible to contribute, for example, to reducing failure in reception of scheduling assignment information that is transmitted in a radio resource region for control in a periodic D2D control period and that specifies D2D transmission resources.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: November 26, 2019
    Assignee: NEC CORPORATION
    Inventors: Kazushi Muraoka, Hiroto Sugahara
  • Publication number: 20190280182
    Abstract: A method for manufacturing a piezoelectric actuator is disclosed that includes forming a vibration plate, forming a plurality of electrodes on the vibration plate, forming a piezoelectric layer on the electrodes, and forming a common electrode on the piezoelectric layer.
    Type: Application
    Filed: May 20, 2019
    Publication date: September 12, 2019
    Inventors: Hiroto Sugahara, Kazuo Kobayashi