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: 20170259579
    Abstract: A liquid ejecting head, including a flow-path unit that includes: first and second nozzle groups disposed alongside each other in a second direction orthogonal to a first direction in which nozzles are arranged; first and second common liquid chambers respectively communicating with the first and second nozzle groups, the first and second common liquid chambers being disposed alongside each other in the second direction; a liquid supply opening communicating with the first common liquid chamber and a liquid discharge opening communicating with the second common liquid chamber, on one side of the flow-path unit in the first direction; and a connecting path connecting the first and second common liquid chambers on the other side of the flow-path unit in the first direction, wherein the first common liquid chamber is disposed nearer to an outer periphery of the flow-path unit in the second direction than the second common liquid chamber.
    Type: Application
    Filed: May 26, 2017
    Publication date: September 14, 2017
    Inventors: Hiroto Sugahara, Shohei Koide, Taisuke Mizuno
  • Publication number: 20170232744
    Abstract: A vibration layer is formed by the AD method on a cavity plate before forming pressure chambers, a common electrode is formed on the vibration layer, and a piezoelectric layer is formed on the common electrode by the AD method. Subsequently, the pressure chambers are formed in the cavity plate by the etching. After that, individual electrodes are formed on the piezoelectric layer. Subsequently, the stack of the cavity plate, the vibration layer, the common electrode, the piezoelectric layer, and the individual electrodes is heated at about 850° C. to simultaneously perform the annealing of the piezoelectric layer and the sintering of the individual electrodes and the common electrode. Accordingly, the atoms of the cavity plate are suppressed from being diffused into the driving portions of the piezoelectric layer.
    Type: Application
    Filed: March 9, 2017
    Publication date: August 17, 2017
    Inventor: Hiroto SUGAHARA
  • Publication number: 20170215084
    Abstract: In one embodiment, a controller (3) operates to control, based on at least one condition, utilization by a first radio station (1) of a shared frequency shared by a plurality of radio systems including a radio communication system (100). The at least one condition includes a first condition regarding communication capability on the shared frequency of at least one radio terminal (2) belonging to a cell (11) operated by the first radio station (1). This embodiment therefore contributes to efficient utilization of the shared frequency (e.g., TVWS) shared by the plurality of radio systems.
    Type: Application
    Filed: January 13, 2017
    Publication date: July 27, 2017
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Hiroto SUGAHARA, Hiroaki AMINAKA
  • Patent number: 9688076
    Abstract: A liquid ejecting head, including a flow-path unit that includes: first and second nozzle groups disposed alongside each other in a second direction orthogonal to a first direction in which nozzles are arranged; first and second common liquid chambers respectively communicating with the first and second nozzle groups, the first and second common liquid chambers being disposed alongside each other in the second direction; a liquid supply opening communicating with the first common liquid chamber and a liquid discharge opening communicating with the second common liquid chamber, on one side of the flow-path unit in the first direction; and a connecting path connecting the first and second common liquid chambers on the other side of the flow-path unit in the first direction, wherein the first common liquid chamber is disposed nearer to an outer periphery of the flow-path unit in the second direction than the second common liquid chamber.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: June 27, 2017
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hiroto Sugahara, Shohei Koide, Taisuke Mizuno
  • Patent number: 9674717
    Abstract: An apparatus for controlling a radio parameter of radio cells, includes: an evaluation targeted radio cell selection unit configured to decide evaluation targeted candidate radio cells based on a change of a connection target radio cell of a radio terminal, which takes a control targeted radio cell as a serving cell or surrounding radio cells of the control targeted radio cell as a serving cell, associated with a change of a connection range of the control targeted radio cell by control of the radio parameter of the control targeted radio cell, and select at least one of the evaluation targeted candidate radio cells as an evaluation targeted radio cell for evaluating the radio parameter of the control targeted radio cell; and a radio parameter control unit configured to control the radio parameter of the control targeted radio cell based on quality of the evaluation targeted radio cell.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: June 6, 2017
    Assignee: NEC Corporation
    Inventors: Kosei Kobayashi, Hiroto Sugahara
  • Patent number: 9623656
    Abstract: A vibration layer is formed by the AD method on a cavity plate before forming pressure chambers, a common electrode is formed on the vibration layer, and a piezoelectric layer is formed on the common electrode by the AD method. Subsequently, the pressure chambers are formed in the cavity plate by the etching. After that, individual electrodes are formed on the piezoelectric layer. Subsequently, the stack of the cavity plate, the vibration layer, the common electrode, the piezoelectric layer, and the individual electrodes is heated at about 850° C. to simultaneously perform the annealing of the piezoelectric layer and the sintering of the individual electrodes and the common electrode. Accordingly, the atoms of the cavity plate are suppressed from being diffused into the driving portions of the piezoelectric layer.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: April 18, 2017
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hiroto Sugahara
  • Patent number: 9550367
    Abstract: A liquid consuming apparatus includes a liquid container, a detector, and a controller. The liquid container includes a movable member, and the movable member includes a detection portion. The detector is configured to output a detection signal based on the presence or absence of the detection portion in a detection position. The controller is configured to measure, based on the detection signal output from the detector, a physical quantity, based on which a velocity of the detection portion can be specified, and is configured to determine whether the physical quantity is within a threshold range.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: January 24, 2017
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hiroto Sugahara, Kenta Hayashida, Taro Nagano, Ayako Ohishi, Hirofumi Kondo, Suguru Tomoguchi
  • Patent number: 9545015
    Abstract: A method for connecting two objects electrically by an electroconductive liquid is described. The method includes providing a substrate having a first surface and a second surface opposite to the first surface. Thereafter, the method includes forming a channel of the liquid on the first surface of the substrate to extend along the first surface of the substrate. Further, the method includes forming a through hole in the substrate. Moreover, the method includes arranging the two objects to interpose the substrate, wherein the two objects overlap with the openings of the through hole. Next, the method further includes filling the liquid to the through hole via the channel, bringing the liquid in contact with the two objects, and hardening the liquid. Further still, the method further includes wherein a surface of the liquid hole bulges to form a projection which makes contact with one of the two objects.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: January 10, 2017
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hiroto Sugahara
  • Patent number: 9487018
    Abstract: An ink-jet printer, including a density detector and a controller, wherein, where successive three ejecting operations to be repeatedly performed on the same predetermined region of a recording medium are defined as first through third ejecting operations in the order of performance, the controller executes: a process for detecting a color density of the predetermined region immediately after attachment of the ink ejected in the second ejecting operation; a process for calculating, based on the detected color density, an estimated density after fixation of the ink ejected in the second ejecting operation; a process for calculating, based on print data, an ideal density after fixation of the ink ejected in the second ejecting operation; and a process for correcting the print data based on a difference between the estimated density and the ideal density, and wherein the ink-jet printer performs the third ejecting operation based on the corrected print data.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: November 8, 2016
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shin Hasegawa, Tomohiro Nodsu, Shotaro Kanzaki, Masaru Someya, Masanobu Ogawa, Hiroto Sugahara
  • Publication number: 20160316386
    Abstract: In one embodiment, 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). This embodiment therefore contributes to simplification of a measurement function which should be supported by the radio terminal when the radio communication system uses a shared frequency (e.g., TVWS) shared by the plurality of radio systems.
    Type: Application
    Filed: June 30, 2016
    Publication date: October 27, 2016
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Hiroaki AMINAKA, Hiroto SUGAHARA, Yoshikazu KAKURA, Kazushi MURAOKA
  • Publication number: 20160304986
    Abstract: A liquid-liquid extraction unit includes an extraction/separation tank (10) into which an aqueous phase in bubble form is admitted from an upper inlet (20) in one sidewall and an organic phase in bubble form is admitted from a lower inlet (30) in the one sidewall. The upward moving organic phase is contacted with the downward moving aqueous phase. After contact, the organic phase is discharged through an upper outlet (40) in an opposite sidewall and the aqueous phase is discharged through a lower outlet (50) in the opposite sidewall.
    Type: Application
    Filed: June 28, 2016
    Publication date: October 20, 2016
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroto Sugahara, Takehisa Minowa
  • Publication number: 20160288527
    Abstract: An ink-jet printer, including a density detector and a controller, wherein, where successive three ejecting operations to be repeatedly performed on the same predetermined region of a recording medium are defined as first through third ejecting operations in the order of performance, the controller executes: a process for detecting a color density of the predetermined region immediately after attachment of the ink ejected in the second ejecting operation; a process for calculating, based on the detected color density, an estimated density after fixation of the ink ejected in the second ejecting operation; a process for calculating, based on print data, an ideal density after fixation of the ink ejected in the second ejecting operation; and a process for correcting the print data based on a difference between the estimated density and the ideal density, and wherein the ink-jet printer performs the third ejecting operation based on the corrected print data.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 6, 2016
    Inventors: Shin Hasegawa, Tomohiro Nodsu, Shotaro Kanzaki, Masaru Someya, Masanobu Ogawa, Hiroto Sugahara
  • Publication number: 20160288499
    Abstract: A liquid ejecting head, including a flow-path unit that includes: first and second nozzle groups disposed alongside each other in a second direction orthogonal to a first direction in which nozzles are arranged; first and second common liquid chambers respectively communicating with the first and second nozzle groups, the first and second common liquid chambers being disposed alongside each other in the second direction; a liquid supply opening communicating with the first common liquid chamber and a liquid discharge opening communicating with the second common liquid chamber, on one side of the flow-path unit in the first direction; and a connecting path connecting the first and second common liquid chambers on the other side of the flow-path unit in the first direction, wherein the first common liquid chamber is disposed nearer to an outer periphery of the flow-path unit in the second direction than the second common liquid chamber.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 6, 2016
    Inventors: Hiroto Sugahara, Shohei Koide, Taisuke Mizuno
  • Publication number: 20160262149
    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: May 7, 2014
    Publication date: September 8, 2016
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Hiroto SUGAHARA, Hiroaki AMINAKA
  • Patent number: 9438393
    Abstract: A radio parameter control apparatus decides a radio parameter from which a throughput of UE is improved. A radio parameter control apparatus includes: a radio quality prediction unit (12) that predicts radio quality of a radio terminal due to change of a radio parameter of a radio cell; a resource-allocated number-of-communications prediction unit (13) that predicts the number of communications considered as allocation targets of radio resources in a radio cell due to the change of the radio parameter; a communication quality prediction unit (14) that predicts communication quality due to the change of the radio parameter based on a prediction result of the radio quality and a prediction result of the number of communications; and a radio parameter decision unit (15) that decides a radio parameter by which improvement of communication quality is predicted based on the predicted communication quality.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: September 6, 2016
    Assignee: NEC Corporation
    Inventors: Kosei Kobayashi, Hiroto Sugahara, Yasuhiko Matsunaga, Kojiro Hamabe
  • Patent number: 9425945
    Abstract: A spectrum control system according to the present invention includes an identifying unit that identifies a base station or a cell that does not satisfy a predetermined level of communication quality based on information regarding a network status collected by a collecting unit that collects information regarding a network status of a wireless communication system, an extracting unit that extracts a plurality of base stations or a plurality of cells including a base station or a cell other than the identified base station or the identified cell as additional band allocating candidates, and an allocating unit that allocates an additional band to the base station or the cell that satisfies a predetermined condition among the plurality of extracted base stations or the plurality of extracted cells.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: August 23, 2016
    Assignee: NEC CORPORATION
    Inventor: Hiroto Sugahara
  • Patent number: 9420482
    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 11, 2013
    Date of Patent: August 16, 2016
    Assignee: NEC Corporation
    Inventors: Hisashi Futaki, Hiroaki Aminaka, Hiroto Sugahara, Yoshikazu Kakura, Kazushi Muraoka
  • Patent number: 9399828
    Abstract: In an extraction tank, a plating solution containing rare earth metal ions is treated with an extracting solution of an extractant in a water-insoluble organic solvent. Extraction treatment is carried out by atomizing the extracting solution through a lower nozzle into the plating solution in the tank lower zone, and atomizing the plating solution through an upper nozzle into the extracting solution in the tank upper zone, for thereby bringing the plating solution in contact with the extracting solution to extract rare earth metal ions from the plating solution into the extractant for removal.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: July 26, 2016
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroto Sugahara, Takehisa Minowa
  • Patent number: 9393801
    Abstract: A liquid consuming apparatus includes a liquid cartridge including a capillary portion having a first end configured to be in communication with the liquid chamber and a second end configured to be in communication with the atmosphere outside the liquid cartridge. The apparatus also includes a detector configured to output a detection signal based on the presence or absence of the liquid in a detection position in the capillary portion and a controller configured to measure, based on the detection signal output from the detector, a physical quantity, based on which a velocity of liquid moving in the capillary portion can be specified and determine whether the physical quantity is within a threshold range.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: July 19, 2016
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hirofumi Kondo, Kenta Hayashida, Taro Nagano, Ayako Ohishi, Suguru Tomoguchi, Hiroto Sugahara
  • Patent number: 9393796
    Abstract: A liquid cartridge includes a liquid chamber configured to store liquid therein, a liquid supply portion configured to supply the liquid from the liquid chamber to the outside of the liquid cartridge, an air communication portion configured to bring the liquid chamber into communication with the atmosphere outside the liquid cartridge, and a capillary portion having a first end configured to be in communication with the liquid chamber and a second end configured to be in communication with the atmosphere outside the liquid cartridge. The capillary portion is configured to move the liquid from the first end to the second end therethrough by capillary force when the liquid chamber is brought into communication with the atmosphere outside the liquid cartridge via the air communication portion.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: July 19, 2016
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hirofumi Kondo, Kenta Hayashida, Taro Nagano, Ayako Ohishi, Suguru Tomoguchi, Hiroto Sugahara