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).

  • Patent number: 9386537
    Abstract: The present invention is a device which, when a second wireless system shares the use of a frequency which is allocated to a first wireless system, estimates receiving power when a second wireless signal which is transmitted from a transmission station of the second wireless system is received at a receiving station of the first wireless system. The receiving power estimation device comprises a correction means for correcting a receiving power estimate value of the second wireless signal at the first wireless system receiving station which is computed using an estimate value of path loss from the second wireless system transmission station to the first wireless system receiving station, said correction using a receiving power measurement value of the second wireless signal which is measured in a transmission station periphery sensor station which is a sensor station which is located in the periphery of the second wireless system transmission station.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: July 5, 2016
    Assignee: NEC CORPORATION
    Inventors: Kazushi Muraoka, Kojiro Hamabe, Hiroto Sugahara, Toshifumi Nakamura
  • Publication number: 20160190425
    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 4, 2016
    Publication date: June 30, 2016
    Inventors: Hiroto Sugahara, Kazuo Kobayashi
  • Patent number: 9375937
    Abstract: A liquid ejecting device includes a casing, a carriage, a cartridge, an ejection unit, a conveying mechanism, an access unit, and a controller. The conveying mechanism is configured to convey the cartridge between a second position where the cartridge is mounted on the carriage and a third position where at least part of the cartridge is exposed outside the casing. The access unit is configured to access first storage to read cartridge information. The controller is configured to perform a first process to: control the access unit to read the cartridge information from the first storage; determine whether the cartridge information meets a prescribed condition; and control the conveying mechanism to convey the cartridge to the second position, if the cartridge information meets the prescribed condition.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: June 28, 2016
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hiroto Sugahara
  • Publication number: 20160176189
    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: Application
    Filed: December 21, 2015
    Publication date: June 23, 2016
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hiroto Sugahara
  • Patent number: 9370933
    Abstract: A liquid cartridge includes a movable member and the movable member includes a detection portion and an anchor. The liquid cartridge also includes a restriction member and the restriction member includes an operation portion and a restriction portion. When the operation portion is in a first position, the restriction portion is configured to contact the movable member such that the movement of the anchor is restricted within a restricted range. When the operation portion is in a second position, the restriction portion is configured to release the movable member such that the anchor is positioned in a free range which is below the restricted range.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: June 21, 2016
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hiroto Sugahara, Kenta Hayashida, Taro Nagano, Ayako Ohishi, Hirofumi Kondo, Suguru Tomoguchi
  • Publication number: 20160174125
    Abstract: A wireless parameter control device comprises: a serving cell prediction unit (11) which predicts a wireless cell which is a connection destination of a first wireless terminal within a first wireless cell upon assuming that an offset value which is added to the wireless quality which the first wireless terminal measures for each wireless cell is changed to a prescribed candidate value; a communication speed index prediction unit (12) which predicts a communication speed index of the first wireless terminal upon assuming that the offset value is changed to the prescribed candidate value and/or a communication speed index of a second wireless terminal within a second wireless cell which is present in the periphery of the first wireless cell; and a coverage control unit (13) which, on the basis of the result of the prediction of the communication speed index, controls the coverage of the first wireless cell and/or the coverage of the second wireless cell.
    Type: Application
    Filed: August 12, 2014
    Publication date: June 16, 2016
    Inventors: KOSEI KOBAYASHI, HIROTO SUGAHARA
  • Publication number: 20160105815
    Abstract: A method and a device for estimating a communication load, as well as a radio station and an upper-level apparatus in a radio communication system, are provided that can estimate a communication load in a target network with high accuracy by using received quality information. A communication load estimation function (1) for estimating a communication load in a network (NW) estimates the communication load in the network by using at least a first quality indicator (Q1), which is a quality measurement value including entire received power, and a second quality indicator (Q2), which is a quality measurement value including the signal-to-noise-and-interference ratio of a reference signal.
    Type: Application
    Filed: May 12, 2014
    Publication date: April 14, 2016
    Applicant: NEC Corporation
    Inventors: Hiroto SUGAHARA, Jun SHIKIDA, Hiroaki AMINAKA, Toshifumi NAKAMURA
  • Patent number: 9313750
    Abstract: A frequency management method and device as well as a wireless system are provided by which acceptable transmit power is efficiently determined for transmitting stations in a system on the interfering side, neither with concentration of processing load on some part nor with redundant processing. When a frequency management apparatus (50_1) receives a notice regarding a change in the state of frequency use from a radio station (20_1) under its own management (S101), the frequency management apparatus (50_1) sets acceptable transmit power for radio stations (20_1, 20_2) under its own management and radio stations (20_3, 20_4) managed by another frequency management apparatus (50_2), based on the notified change in the state of frequency (S103, S104).
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: April 12, 2016
    Assignee: NEC Corporation
    Inventors: Kazushi Muraoka, Hiroto Sugahara, Kojiro Hamabe, Masayuki Ariyoshi
  • Patent number: 9308733
    Abstract: A liquid cartridge includes a movable member and the movable member includes a detection portion and a float. The liquid cartridge also includes a restriction member and the restriction member includes an operation portion and a restriction portion. When the operation portion is in a first position, the restriction portion is configured to contact the movable member such that the movement of the float is restricted within a restricted range. When the operation portion is in a second position, the restriction portion is configured to release the movable member such that the float is positioned in a free range which is above the restricted range.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: April 12, 2016
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hiroto Sugahara, Kenta Hayashida, Taro Nagano, Ayako Ohishi, Hirofumi Kondo, Suguru Tomoguchi
  • Patent number: 9302467
    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: April 9, 2014
    Date of Patent: April 5, 2016
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hiroto Sugahara, Kazuo Kobayashi
  • Publication number: 20160068930
    Abstract: The inventive extraction/separation method involves the step of contacting an organic phase containing a dialkyldiglycol amic acid extractant: R1R2NCOCH2OCH2COOH with an aqueous solution containing scandium and zirconium and/or hafnium for thereby extracting zirconium and/or hafnium into the organic phase. The purity of scandium can be efficiently increased by the simple step of solvent extraction.
    Type: Application
    Filed: September 9, 2015
    Publication date: March 10, 2016
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventor: Hiroto Sugahara
  • Publication number: 20160057634
    Abstract: A method and an apparatus for controlling a radio parameter, as well as a network operation management apparatus and a radio base station, are provided that enable optimization control taking a dead zone into consideration. A radio parameter control apparatus (10) for controlling a radio parameter of a radio base station (20) includes a measured data analysis section (101) that analyzes data measured by a plurality of radio terminals including a radio terminal in idle state to detect a dead zone in a radio cell, and a radio parameter control section (102) that controls the radio parameter of the radio base station based on information regarding the dead zone.
    Type: Application
    Filed: March 28, 2014
    Publication date: February 25, 2016
    Applicant: NEC Corporation
    Inventors: Hiroto SUGAHARA, Hisashi FUTAKI, Kosei KOBAYASHI, Takamichi INOUE
  • Publication number: 20160052288
    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: Application
    Filed: October 7, 2014
    Publication date: February 25, 2016
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hirofumi KONDO, Kenta HAYASHIDA, Taro NAGANO, Ayako OHISHI, Suguru TOMOGUCHI, Hiroto SUGAHARA
  • Publication number: 20160052285
    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: Application
    Filed: October 7, 2014
    Publication date: February 25, 2016
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hirofumi KONDO, Kenta HAYASHIDA, Taro NAGANO, Ayako OHISHI, Suguru TOMOGUCHI, Hiroto SUGAHARA
  • Publication number: 20160039215
    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: Application
    Filed: September 23, 2014
    Publication date: February 11, 2016
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hiroto SUGAHARA, Kenta HAYASHIDA, Taro NAGANO, Ayako OHISHI, Hirofumi KONDO, Suguru TOMOGUCHI
  • Publication number: 20160039209
    Abstract: A liquid cartridge includes a movable member and the movable member includes a detection portion and a float. The liquid cartridge also includes a restriction member and the restriction member includes an operation portion and a restriction portion. When the operation portion is in a first position, the restriction portion is configured to contact the movable member such that the movement of the float is restricted within a restricted range. When the operation portion is in a second position, the restriction portion is configured to release the movable member such that the float is positioned in a free range which is above the restricted range.
    Type: Application
    Filed: September 23, 2014
    Publication date: February 11, 2016
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hiroto SUGAHARA, Kenta HAYASHIDA, Taro NAGANO, Ayako OHISHI, Hirofumi KONDO, Suguru TOMOGUCHI
  • Publication number: 20160039213
    Abstract: A liquid cartridge includes a liquid chamber, a partitioning wall partitioning the liquid chamber into a first liquid chamber and a second liquid chamber, a communication opening through which liquid can flow from the first liquid chamber to the second liquid chamber, and a movable member which is movable between a block position and a communication position. When the movable member is in the block position, the movable member is configured to prevent the liquid from flowing from the first liquid chamber to the second liquid chamber through the communication opening, and when the movable member is in the communication position, the liquid is allowed to flow from the first liquid chamber to the second liquid chamber through the communication opening.
    Type: Application
    Filed: September 22, 2014
    Publication date: February 11, 2016
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Suguru TOMOGUCHI, Kenta HAYASHIDA, Taro NAGANO, Ayako OHISHI, Hirofumi KONDO, Hiroto SUGAHARA
  • Publication number: 20160039210
    Abstract: A liquid cartridge includes a movable member and the movable member includes a detection portion and an anchor. The liquid cartridge also includes a restriction member and the restriction member includes an operation portion and a restriction portion. When the operation portion is in a first position, the restriction portion is configured to contact the movable member such that the movement of the anchor is restricted within a restricted range. When the operation portion is in a second position, the restriction portion is configured to release the movable member such that the anchor is positioned in a free range which is below the restricted range.
    Type: Application
    Filed: September 23, 2014
    Publication date: February 11, 2016
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hiroto SUGAHARA, Kenta HAYASHIDA, Taro NAGANO, Ayako OHISHI, Hirofumi KONDO, Suguru TOMOGUCHI
  • Publication number: 20160037370
    Abstract: A method and a radio parameter control system, as well as a network operation management apparatus and a radio station, are provided that enable optimization control for problems varying with sites of occurrence. Using location information at the time of measurement included in a measurement report from a radio terminal (30) located in a radio cell (C10), quality indicators based on measurement information acquired by the radio terminals or the radio station are compiled in association with areas (Ai), each of which is smaller than the radio cell (C10), and control of a radio parameter is performed in the radio cell or across a plurality of radio cells, based on a result of compilation of the quality indicators for each area.
    Type: Application
    Filed: March 31, 2014
    Publication date: February 4, 2016
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Hiroto SUGAHARA, Kosei KOBAYASHI, Yoshinori WATANABE
  • Patent number: 9237574
    Abstract: A spectrum control system according to the present invention is a spectrum control system that evaluates whether or not to allow a second wireless communication system to perform secondary use on a frequency band that is allowed to be preferentially used by a first wireless communication system, and includes a request distinguish unit (102) that evaluates a possibility of the secondary use influencing the first wireless communication system and an evaluation unit (101) that evaluates whether or not to allow the secondary use of the frequency band, which has been evaluated that there is a possibility that the frequency band may influence the first wireless communication system using an evaluation criterion more specific than that of the request distinguish unit (102).
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: January 12, 2016
    Assignee: NEC Corporation
    Inventors: Toshifumi Nakamura, Hiroto Sugahara