Patents by Inventor Takuya Fujii

Takuya Fujii 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: 20240128887
    Abstract: A first voltage control circuitry controls a first representative value, i.e., an average-value corresponding value of DC capacitor voltages of all converter cells to follow an overall voltage command value. A phase balance control circuitry controls second representative values, i.e., average-value corresponding values of DC capacitor voltages of the converter cells in leg circuits for respective phases to follow the first representative value. A positive-negative balance control circuitry controls deviations of third representative values, i.e., average-value corresponding values of the DC capacitor voltages of the converter cells in the positive and negative arms of the leg circuits for respective phases to become zero between the positive and negative arms. An individual balance control circuitry controls DC capacitor voltages of all the converter cells to follow the third representative values.
    Type: Application
    Filed: April 5, 2021
    Publication date: April 18, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Miwako TANAKA, Toshiyuki FUJII, Takuya KAJIYAMA, Akito NAKAYAMA
  • Patent number: 11936306
    Abstract: In an MMC-based power conversion device, a control device generates, for each leg circuit, a first voltage command value not based on circulating current circulating between a plurality of leg circuits and a second voltage command value based on the circulating current. A plurality of individual controllers are provided respectively corresponding to a plurality of converter cells and generate a gate control signal for controlling turning on and off of a switching element of the corresponding converter cell, based on the first voltage command value and the second voltage command value. When generating the gate control signal using pulse width modulation, each individual controller modulates a carrier signal in accordance with the second voltage command value such that the pulse width of the gate control signal changes in accordance with the second voltage command value.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: March 19, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Fuminori Nakamura, Takeshi Kikuchi, Daisuke Yamanaka, Takuya Kajiyama, Toshiyuki Fujii
  • Publication number: 20240081718
    Abstract: A biological information measurement device includes a sensor unit that detects predetermined biological information related to an organ of a living body, an A/D conversion unit that converts a measurement signal output from the sensor unit into a digital signal, a storage unit that stores information including a digital signal related to the measurement signal output from the A/D conversion unit, an analysis processing unit that determines presence or absence of a suspicion of an abnormality in the organ by analyzing the digital signal, and a measurement control unit that changes a sampling frequency related to A/D conversion of the measurement signal under a predetermined condition when the analysis processing unit has determined that a suspicion of an abnormality is present in the organ.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: Kenji FUJII, Yasuhiro KAWABATA, Naomi MATSUMURA, Akito ITO, Yuki SAKAGUCHI, Daizo OKA, Takuya YOSHIDA, Seiji FUKUNAGA, Tatsuaki OKA
  • Publication number: 20240072642
    Abstract: A power conversion device includes a power converter connected between a multi-phase alternating-current circuit and a direct-current circuit, and a control device to control the power converter. The control device detects an unbalanced component indicating a voltage unbalanced component or a current unbalanced component of the alternating-current circuit and limits a magnitude of an alternating current flowing between the power converter and the alternating-current circuit based on the unbalanced component.
    Type: Application
    Filed: January 15, 2021
    Publication date: February 29, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Takuya KAJIYAMA, Toshiyuki FUJII, Shuhei FUJIWARA, Yoshiyuki KONO, Ryosuke UDA
  • Patent number: 11796550
    Abstract: A sample analyzer includes: a reagent container holder including a reagent container holder body configured to hold a reagent container, and a tilt changing part configured to change a tilt of the reagent container holder body; a reagent dispenser configured to aspirate a reagent contained in the reagent container held in the reagent container holder body; a detector configured to detect a signal for analysis from a measurement specimen containing a sample and the reagent dispensed by the reagent dispenser; and a controller that analyzes the sample on the basis of the signal detected by the detector.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: October 24, 2023
    Assignee: SYSMEX CORPORATION
    Inventors: Takuya Fujii, Hironori Katsumi, Akio Toyoda
  • Patent number: 11772100
    Abstract: Disclosed is a reagent container rack used in a specimen analyzer configured to analyze a specimen by use of a reagent. The reagent container rack includes a holder configured to hold a reagent container that contains the reagent; and a lid configured to cover a mouth portion of the reagent container to form an airtight space between the lid and the mouth portion.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: October 3, 2023
    Assignee: SYSMEX CORPORATION
    Inventor: Takuya Fujii
  • Publication number: 20230193962
    Abstract: An identification structure for components of a clutch piston mechanism capable of facilitating distinction of types of the components of the clutch piston mechanism. The identification structure for components of the clutch piston mechanism according to an embodiment of the present invention includes an identifying part that is provided to a piston seal as a component of the clutch piston mechanism and is used for identifying the piston seal. The identifying part has a pattern formed by differences in surface roughness.
    Type: Application
    Filed: April 23, 2021
    Publication date: June 22, 2023
    Applicant: NOK CORPORATION
    Inventor: Takuya FUJII
  • Publication number: 20220291665
    Abstract: Communication with a user is more naturally and effectively realized. An information processing apparatus includes a first sensor (1101) that detects an object present in a first direction with respect to an autonomous mobile body; second sensors (1102, 1103) that detect the object present in the first direction with respect to the autonomous mobile body by a system different from a system of the first sensor; and an operation control unit (230) that controls an operation of the autonomous mobile body based on a detection result acquired by the first sensor and a detection result acquired by the second sensors.
    Type: Application
    Filed: July 17, 2020
    Publication date: September 15, 2022
    Inventors: REIICHI SATO, JUNNA IMAI, MASASHI KISHIKAWA, TAKUYA FUJII
  • Publication number: 20220280418
    Abstract: Provided is a means that is capable of preventing initial excessive release of an active ingredient and that allows for sustained release of the active ingredient in a pharmaceutically active amount over a long period of time.
    Type: Application
    Filed: August 13, 2020
    Publication date: September 8, 2022
    Applicant: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Motoyasu YOSHIMURA, Takuya FUJII, Naoki KAMADA, Ryohei TOGASHI, Ryuta AONO, Xinyu WANG
  • Publication number: 20220273647
    Abstract: Provided is a means that is capable of preventing initial excessive release of an active ingredient and that allows for sustained release of the active ingredient in a pharmaceutically active amount over a long period of time.
    Type: Application
    Filed: August 13, 2020
    Publication date: September 1, 2022
    Applicant: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Motoyasu YOSHIMURA, Takuya FUJII, Naoki KAMADA, Ryohei TOGASHI, Ryuta AONO, Xinyu WANG
  • Patent number: 10756507
    Abstract: A process of forming a semiconductor optical device is disclosed. The semiconductor optical device provides a waveguide structure accompanied with a heater for varying a temperature of the waveguide structure. The process includes steps of: (a) forming a striped mask on a semiconductor substrate; (b) selectively growing a dummy layer on the semiconductor substrate; (c) removing the patterned mask; (d) burying the dummy layer by a supplemental layer; (e) exposing a portion of the dummy layer by etching a portion of the supplemental layer; (f) and removing the dummy layer by immersing the dummy layer within a solution that shows an etching rate for the dummy layer enough faster than an etching rate for the supplemental layer and the substrate so as to leave a void in a region the dummy layer had existed.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: August 25, 2020
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Device Innovations, Inc.
    Inventors: Toshimitsu Kaneko, Takuya Fujii, Masami Ishiura, Taro Hasegawa, Toshiyuki Taguchi
  • Publication number: 20200174031
    Abstract: A sample analyzer includes: a reagent container holder including a reagent container holder body configured to hold a reagent container, and a tilt changing part configured to change a tilt of the reagent container holder body; a reagent dispenser configured to aspirate a reagent contained in the reagent container held in the reagent container holder body; a detector configured to detect a signal for analysis from a measurement specimen containing a sample and the reagent dispensed by the reagent dispenser; and a controller that analyzes the sample on the basis of the signal detected by the detector.
    Type: Application
    Filed: February 10, 2020
    Publication date: June 4, 2020
    Applicant: SYSMEX CORPORATION
    Inventors: Takuya FUJII, Hironori KATSUMI, Akio TOYODA
  • Publication number: 20200159646
    Abstract: An information processing apparatus is configured to execute a monitor program with a first amount of log information to be output during an execution of the program, detect an occurrence of a failure while the program is being executed with the first amount, change an amount of the log information from the first amount to a second amount larger than the first amount when the occurrence is detected while the program is being executed with the first amount, execute the program with the second amount, change the amount from the second amount to a third amount smaller than the second amount when the occurrence is not detected while the program is being executed with the second amount, execute the program with the third amount, and analyze the log information when the occurrence is detected while the program is being executed with the second amount or executed with the third amount.
    Type: Application
    Filed: October 30, 2019
    Publication date: May 21, 2020
    Applicant: FUJITSU LIMITED
    Inventor: TAKUYA FUJII
  • Publication number: 20200101464
    Abstract: Disclosed is a reagent container rack used in a specimen analyzer configured to analyze a specimen by use of a reagent. The reagent container rack includes a holder configured to hold a reagent container that contains the reagent; and a lid configured to cover a mouth portion of the reagent container to form an airtight space between the lid and the mouth portion.
    Type: Application
    Filed: September 18, 2019
    Publication date: April 2, 2020
    Inventor: Takuya FUJII
  • Patent number: 10591500
    Abstract: A sample analyzer includes: a reagent container holder including a reagent container holder body configured to hold a reagent container, and a tilt changing part configured to change a tilt of the reagent container holder body; a reagent dispenser configured to aspirate a reagent contained in the reagent container held in the reagent container holder body; a detector configured to detect a signal for analysis from a measurement specimen containing a sample and the reagent dispensed by the reagent dispenser; and a controller that analyzes the sample on the basis of the signal detected by the detector.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: March 17, 2020
    Assignee: SYSMEX CORPORATION
    Inventors: Takuya Fujii, Hironori Katsumi, Akio Toyoda
  • Patent number: 10576700
    Abstract: A first continuous fiber component and a second continuous fiber component are stacked with a non-woven fabric interposed therebetween to thereby prepare a fiber base material. The fiber base material is placed between an upper mold and a lower mold. The upper mold and the lower mold are brought close to each other to thereby form an enclosed space therebetween. The enclosed space is larger in volume than a product cavity. A liquid matrix resin is supplied to the enclosed space. The upper mold and the lower mold are brought closer to each other to thereby form the product cavity in a manner that a pressing load is applied to the fiber base material. Then, the liquid matrix resin with which the fiber base material has been impregnated is hardened in the product cavity, whereby a fiber-reinforced plastic molded article is produced.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: March 3, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masaki Namaizawa, Makoto Uda, Hiroyuki Tanaka, Hitoshi Iwadate, Takuya Fujii, Satoru Shinkawa, Iku Koike, Kazuhiro Kagawa, Hirohide Azuma
  • Publication number: 20180212400
    Abstract: A process of forming a semiconductor optical device is disclosed. The semiconductor optical device provides a waveguide structure accompanied with a heater for varying a temperature of the waveguide structure. The process includes steps of: (a) forming a striped mask on a semiconductor substrate; (b) selectively growing a dummy layer on the semiconductor substrate; (c) removing the patterned mask; (d) burying the dummy layer by a supplemental layer; (e) exposing a portion of the dummy layer by etching a portion of the supplemental layer; (f) and removing the dummy layer by immersing the dummy layer within a solution that shows an etching rate for the dummy layer enough faster than an etching rate for the supplemental layer and the substrate so as to leave a void in a region the dummy layer had existed.
    Type: Application
    Filed: January 22, 2018
    Publication date: July 26, 2018
    Inventors: Toshimitsu Kaneko, Takuya Fujii, Masami Ishiura, Taro Hasegawa, Toshiyuki Taguchi
  • Publication number: 20180169973
    Abstract: A first continuous fiber component and a second continuous fiber component are stacked with a non-woven fabric interposed therebetween to thereby prepare a fiber base material. The fiber base material is placed between an upper mold and a lower mold. The upper mold and the lower mold are brought close to each other to thereby form an enclosed space therebetween. The enclosed space is larger in volume than a product cavity. A liquid matrix resin is supplied to the enclosed space. The upper mold and the lower mold are brought closer to each other to thereby form the product cavity in a manner that a pressing load is applied to the fiber base material. Then, the liquid matrix resin with which the fiber base material has been impregnated is hardened in the product cavity, whereby a fiber-reinforced plastic molded article is produced.
    Type: Application
    Filed: December 5, 2017
    Publication date: June 21, 2018
    Inventors: Masaki Namaizawa, Makoto Uda, Hiroyuki Tanaka, Hitoshi Iwadate, Takuya Fujii, Satoru Shinkawa, Iku Koike, Kazuhiro Kagawa, Hirohide Azuma
  • Publication number: 20170352581
    Abstract: A semiconductor wafer in accordance with an embodiment includes: a support substrate semiconductor wafer having a first surface and a second surface opposite to the first surface; and an active layer formed on the first surface. The support substrate semiconductor wafer includes a support substrate semiconductor and an insulating film which is formed on a first surface side and a second surface side of the support substrate semiconductor. An area of the insulating film of the second surface is smaller than an area of the insulating film of the first surface.
    Type: Application
    Filed: June 6, 2017
    Publication date: December 7, 2017
    Applicant: Renesas Electronics Corporation
    Inventors: Makoto NISHIDA, Takuya FUJII
  • Publication number: 20170176482
    Abstract: A sample analyzer includes: a reagent container holder including a reagent container holder body configured to hold a reagent container, and a tilt changing part configured to change a tilt of the reagent container holder body; a reagent dispenser configured to aspirate a reagent contained in the reagent container held in the reagent container holder body; a detector configured to detect a signal for analysis from a measurement specimen containing a sample and the reagent dispensed by the reagent dispenser; and a controller that analyzes the sample on the basis of the signal detected by the detector.
    Type: Application
    Filed: December 15, 2016
    Publication date: June 22, 2017
    Applicant: SYSMEX CORPORATION
    Inventors: Takuya FUJII, Hironori KATSUMI, Akio TOYODA