Patents by Inventor Hiroaki Kojima

Hiroaki Kojima 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: 20220285182
    Abstract: A substrate processing apparatus includes: a stage having an electrostatic chuck configured to attract a substrate; a measurement part configured to measure a temperature of the stage; and a detection part configured to detect an abnormality caused by attraction of the substrate by the electrostatic chuck, based on a fluctuation of the temperature of the stage.
    Type: Application
    Filed: February 24, 2022
    Publication date: September 8, 2022
    Inventors: Hiroaki CHIHAYA, Tetsuya MIYASHITA, Einstein Noel ABARRA, Yasuhiko KOJIMA
  • Publication number: 20220285197
    Abstract: A substrate processing apparatus includes: a stage including an electrostatic chuck configured to attract a substrate; a heater configured to heat the stage; a heating drive part configured to supply power to the heater so that a temperature of the stage becomes a target value; and a detector configured to detect an abnormality in attraction of the substrate by the electrostatic chuck, wherein the detector is further configured to detect the abnormality based on fluctuation of the power supplied to the heater, the fluctuation being generated by the attraction of the substrate by the electrostatic chuck.
    Type: Application
    Filed: February 25, 2022
    Publication date: September 8, 2022
    Inventors: Hiroaki CHIHAYA, Yasuhiko KOJIMA, Einstein Noel ABARRA, Tetsuya MIYASHITA
  • Publication number: 20220232191
    Abstract: There is provided a content distribution device including a virtual character arrangement acquisitor that acquires an arrangement in a virtual space of each of a plurality of virtual characters respectively corresponding to a plurality of participants in accordance with an operation of a corresponding participant, a trigger detector that detects a first trigger and thereafter detects a second trigger, and a display control data distributor that generates and distributes display control data for displaying at least a part of the virtual space in which the plurality of virtual characters is arranged.
    Type: Application
    Filed: June 24, 2020
    Publication date: July 21, 2022
    Applicant: DWANGO Co., Ltd.
    Inventors: Nobuo KAWAKAMI, Takashi KOJIMA, Hiroaki SAITO, Toshihiro SHIMIZU
  • Patent number: 11394744
    Abstract: A DDoS attack handling technology is provided in which even when a plurality of IP addresses are attacked at the same time, resource load distribution between sites can be achieved while an increase in delay of target-addressed communications due to the handling of DDoS attacks is prevented. A DDoS handling apparatus 100 includes a load distribution determination unit 112 that determines whether load distribution processing is necessary, a processability determination unit 113 that determines whether load distribution processing is capable of being performed within a desired time, a grouping processing unit 115 that groups target-addressed communications into a plurality of groups, a load distribution processing unit 116 that determines, for each group, a mitigation site to be used to handle the target-addressed communications from among a plurality of mitigation sites, and an attack handling setting unit 117 that performs route control of the target-addressed communications.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: July 19, 2022
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Hiroaki Maeda, Hisashi Kojima, Takeshi Kuwahara
  • Patent number: 11384121
    Abstract: An object of the present invention is to provide an echinomycin derivative that has anti-cancer activity equal to or greater than that of echinomycin, and a production method therefor based on a chemical procedure. Provided are an echinomycin derivative represented by formula (I), and a production method therefor based on a chemical procedure.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: July 12, 2022
    Assignee: National University Corporation Hokkaido University
    Inventors: Satoshi Ichikawa, Keita Kojima, Mikihiro Fujiya, Hiroaki Konishi
  • Patent number: 11372048
    Abstract: The invention provides a diagnostic device including: an input/output unit that receives an input of a current value indicating a value of a current of an electric motor measured by a sensor; a frequency analysis unit that converts the current value measured by the sensor into a frequency intensity; a deterioration mode decomposition unit that uses a state mode model indicating a change situation of a frequency intensity in a part constituting the electric motor to calculate an activity level indicating a time series change of a deterioration intensity for each state mode model from the frequency intensity; and an abnormality determination unit that determines a deterioration and an abnormality of each part using the activity level.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: June 28, 2022
    Assignee: HITACHI, LTD.
    Inventors: Akari Kubo, Masayoshi Ojima, Hiroaki Kojima
  • Patent number: 11374454
    Abstract: A dynamo-electric machine with discharge reduced in a core slot without relation to a position of a stator coil placed in the core slot is provided. For that purpose, the present invention includes: a stator coil including a coil conductor and a main insulation layer covering a surface of the coil conductor; a core slot containing the stator coil; a first semiconducting layer that is placed between the stator coil and the core slot and is wrapped around and in contact with the main insulation layer; and a second semiconducting layer that is wrapped around the stator coil and in contact with the core slot, with the second semiconducting layer overlaid on the first semiconducting layer. The first semiconducting layer has a surface facing toward the core slot and a release layer is formed on the surface facing toward the core slot. The first semiconducting layer has electric connection with an inner peripheral surface of the core slot via the second semiconducting layer.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: June 28, 2022
    Assignee: Hitachi Industrial Products, Ltd.
    Inventors: Yuuki Kasai, Yuuichirou Yoshitake, Hiroaki Kojima
  • Publication number: 20220198856
    Abstract: A communication control system includes an acquisition unit that obtains setting information when the setting information is input by a user. The setting information is related to a restriction on actuation of an operation subject that is actuated or allowed to be actuated through authentication communication performed with a terminal. The communication control system further includes a restriction unit that restricts actuation of the operation subject when a condition in the setting information is satisfied.
    Type: Application
    Filed: April 7, 2020
    Publication date: June 23, 2022
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Keita SOBUE, Hiroaki KOJIMA, Masayuki KAWAMURA
  • Patent number: 11336289
    Abstract: According to a clock generator, an oscillator outputs source oscillation clocks which are trimmed according to a trimming code. A first frequency divider generates X frequency division clocks by frequency-dividing the source oscillation clocks by a first frequency division ratio X. A trimming controller changes the trimming code within a period of the X frequency division clocks and supplies the changed trimming code to the oscillator.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: May 17, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventor: Hiroaki Kojima
  • Patent number: 11187147
    Abstract: A pressure variation in a fuel tank can be prevented, and leakage of liquid fuel can be prevented even if the fuel tank is inclined in a predetermined direction, without operation for opening and closing a breather passage. An engine generator includes: a first breather passage having an opening at a position above a liquid fuel in a tank bulge section when the engine generator is inclined to the right (corresponding to a first direction); and a second breather passage having an opening at a position above the liquid fuel in the tank bulge section when the engine generator is inclined in the left direction (a second direction).
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: November 30, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Hiroaki Kojima, Masashi Kai, Jun Yamamoto, Mitsuhiro Ito
  • Publication number: 20210340903
    Abstract: A pressure variation in a fuel tank can be prevented, and leakage of liquid fuel can be prevented even if the fuel tank is inclined in a predetermined direction, without operation for opening and closing a breather passage. An engine generator includes: a first breather passage having an opening at a position above a liquid fuel in a tank bulge section when the engine generator is inclined to the right (corresponding to a first direction); and a second breather passage having an opening at a position above the liquid fuel in the tank bulge section when the engine generator is inclined in the left direction (a second direction).
    Type: Application
    Filed: September 6, 2018
    Publication date: November 4, 2021
    Inventors: Hiroaki Kojima, Masashi Kai, Jun Yamamoto, Mitsuhiro Ito
  • Publication number: 20210288654
    Abstract: According to a clock generator, an oscillator outputs source oscillation clocks which are trimmed according to a trimming code. A first frequency divider generates X frequency division clocks by frequency-dividing the source oscillation clocks by a first frequency division ratio X. A trimming controller changes the trimming code within a period of the X frequency division clocks and supplies the changed trimming code to the oscillator.
    Type: Application
    Filed: September 4, 2020
    Publication date: September 16, 2021
    Inventor: Hiroaki Kojima
  • Publication number: 20210165045
    Abstract: The invention provides a diagnostic device including: an input/output unit that receives an input of a current value indicating a value of a current of an electric motor measured by a sensor; a frequency analysis unit that converts the current value measured by the sensor into a frequency intensity; a deterioration mode decomposition unit that uses a state mode model indicating a change situation of a frequency intensity in a part constituting the electric motor to calculate an activity level indicating a time series change of a deterioration intensity for each state mode model from the frequency intensity; and an abnormality determination unit that determines a deterioration and an abnormality of each part using the activity level.
    Type: Application
    Filed: November 17, 2020
    Publication date: June 3, 2021
    Inventors: Akari KUBO, Masayoshi OJIMA, Hiroaki KOJIMA
  • Publication number: 20210142599
    Abstract: A portable device includes a vibration sensor and a determination unit. The determination unit determines that vibration is detected when an amount of vibration applied to the portable device exceeds a determination threshold that is indicative of a vibration detection sensitivity of the vibration sensor. The determination unit selects one of determination thresholds that are indicative of different vibration detection sensitivities and determines whether or not vibration is detected based on the selected determination threshold.
    Type: Application
    Filed: May 29, 2018
    Publication date: May 13, 2021
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Tetsuya KAWAMURA, Hiroaki KOJIMA, Masayuki KAWAMURA, Tomohiko ISHIGAKI
  • Publication number: 20210050758
    Abstract: A dynamo-electric machine with discharge reduced in a core slot without relation to a position of a stator coil placed in the core slot is provided. For that purpose, the present invention includes: a stator coil including a coil conductor and a main insulation layer covering a surface of the coil conductor; a core slot containing the stator coil; a first semiconducting layer that is placed between the stator coil and the core slot and is wrapped around and in contact with the main insulation layer; and a second semiconducting layer that is wrapped around the stator coil and in contact with the core slot, with the second semiconducting layer overlaid on the first semiconducting layer. The first semiconducting layer has a surface facing toward the core slot and a release layer is formed on the surface facing toward the core slot. The first semiconducting layer has electric connection with an inner peripheral surface of the core slot via the second semiconducting layer.
    Type: Application
    Filed: January 7, 2019
    Publication date: February 18, 2021
    Inventors: Yuuki KASAI, Yuuichirou YOSHITAKE, Hiroaki KOJIMA
  • Publication number: 20200072615
    Abstract: A positioning system includes a detector arranged in a terminal to detect a dynamic physical quantity generated at the terminal, and a position calculator that obtains a position of the terminal when the terminal is moved relative to a communication peer. The detector includes a direction detector that detects a movement direction of the terminal, and a movement change amount detector that detects a movement change amount of the terminal.
    Type: Application
    Filed: February 16, 2018
    Publication date: March 5, 2020
    Inventors: Yuki KONO, Hiroaki KOJIMA, Masayuki KAWAMURA, Daisuke SENZAKI
  • Patent number: 10442949
    Abstract: A composition for an electric wire coating material that has excellent damage resistance, low-temperature flexibility, tear resistance, and thermal stability, and an insulated electric wire in which this composition is used. The composition for an electric wire coating material containing polyvinyl chloride contains a plasticizer in an amount of 15 to 30 parts by mass and one or more ethylene-based copolymers selected from ethylene-vinyl ester copolymers and ethylene-?,?-unsaturated carboxylic acid ester copolymers in an amount of 0.1 to 10 parts by mass, with respect to 100 parts by mass of the polyvinyl chloride. An insulated electric wire is obtained by coating an outer circumference of a conductor with an insulating coating layer, with this composition for an electric wire coating material used in an electric wire coating material.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: October 15, 2019
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Toyoki Furukawa, Hiroaki Kojima
  • Patent number: 10424984
    Abstract: A rotating electrical machine includes a plurality of coil conductors, and an insulating tape. The insulating tape is wound around the coil conductors a plurality of times to form an insulating layer. The insulating layer corresponds to at least a part of the coil conductors protruded from the core is provided so that a part of the wound insulating tape is adhered.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: September 24, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Hiroaki Kojima, Kenji Ikeda, Naohiro Hiruta, Daisuke Kamegawa
  • Publication number: 20190080539
    Abstract: This key security device is used together with a first terminal which may be a mobile phone with high functionality and a second terminal which may be an electronic key. The key security device is provided with: a location information acquiring unit which acquires location information about the first terminal from a global positioning system (GPS) receiver of the first terminal; a level setting unit which sets an alert level according to the acquired location information; and a security guard processor which sets a location determination parameter value according to the alert level, monitors the distance between the first terminal and the second terminal through communication between the first terminal and the second terminal according to the alert level and the location determination parameter, and executes a security guard processing of the second terminal according to the result of the monitoring.
    Type: Application
    Filed: April 20, 2017
    Publication date: March 14, 2019
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Sho YOSHIKAWA, Daisuke SENZAKI, Masayuki KAWAMURA, Hiroaki KOJIMA
  • Patent number: 10199900
    Abstract: The present invention provides a rotating machine which can maintain good contact state between the brush and the metal rotating body. A rotating machine of the present invention includes a stator including a stator winding, a rotor including a rotor winding and rotatably disposed apart from the stator with a gap, a metal rotating body electrically coupled with the rotor winding, a brush in contact with the metal rotating body, and a pressing mechanism for increasing pressure to press the brush against the metal rotating body when contact failure occurs between the metal rotating body and the brush.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: February 5, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Iwata, Hiroaki Kojima, Motonobu Iizuka