Patents by Inventor Yuta Nakamura

Yuta Nakamura 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: 11456685
    Abstract: The present motor control device includes an inverter, a converter, and a control device. The control device has a rotation speed calculation unit that calculates a rotation speed of a motor; an optimum voltage calculation unit that calculates an optimum input voltage; a minimum voltage calculation unit that calculates a minimum input voltage required to operate the motor at a motor operating point; and a target value setting unit that sets either one of the optimum input voltage and the minimum input voltage as a target input voltage. In a case in which the set target torque exceeds a predetermined value, the target value setting unit sets the minimum input voltage lower than the optimum input voltage as the target input voltage.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: September 27, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Shogo Tokita, Kazunari Kurokawa, Masahiro Shimada, Yuta Nakamura, Takami Suzuki
  • Patent number: 11421124
    Abstract: An ink contains a coloring material, an organic solvent, a resin, and a compound represented by Chemical Formula 1 having a weight average molecular weight of from 390 to 610, where R1 represents a hydrocarbon group, and n represents an integer of 2 or greater.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: August 23, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Naoto Shimura, Yuta Nakamura, Yoshiaki Masuda
  • Patent number: 11415866
    Abstract: An image capturing apparatus having a forced air cooling function and capable of having an accessory attached thereto includes an image capturing apparatus body. A lens mount is provided on the apparatus body and can have a shooting lens removably attached thereto. An attachment portion is provided on the apparatus body and can have the accessory removably attached thereto. A built-in microphone is arranged on a side of a surface of the apparatus body, different from any of a surface where an air outlet port for discharging air used for forced cooling is arranged, a surface where the lens mount is arranged, and a surface where the attachment portion is arranged. The built-in microphone is arranged at a location closer to a top surface of the image capturing apparatus body than a bottom surface thereof.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: August 16, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuta Nakamura, Yasuhiro Kojima, Hideki Toichi, Hayato Mano, Yusuke Mogi
  • Patent number: 11405536
    Abstract: An imaging device includes an image sensor that captures an image of a subject, a first substrate on which the image sensor is mounted, a second substrate located frontward from the first substrate in an optical axis direction and having a first opening, and a lens barrel holding a lens. The image sensor receives light passing through the lens and the first opening.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: August 2, 2022
    Assignee: NIDEC COPAL CORPORATION
    Inventor: Yuta Nakamura
  • Patent number: 11404989
    Abstract: A power supply system (1) includes: a drive motor (M) coupled to drive wheels (W); a first inverter (23) which converts DC electric power into three-phase AC electric power; a first current sensor (23I) which generates a current detection signal according to electrical current flowing in the first inverter (23), and a system ECU (8) which executes discharge control for discharging electrical charge of a second smoothing capacitor (C2) connected to the first inverter (23), in a case of a discharge start condition being established. The system ECU (8), in a case of the drive motor (M) rotating upon starting the discharge control, executes the discharge control, after executing three-phase short-circuit control to turn ON all switching elements of an upper arm or all switching elements of a lower arm of the three-phase arm of the first inverter (23), based on the current detection signal of the sensor (23I).
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: August 2, 2022
    Assignees: HONDA MOTOR CO., LTD., HITACHI ASTEMO, LTD.
    Inventors: Yasuhiko Kondo, Yuta Nakamura, Nobukatsu Yamaguchi
  • Patent number: 11381719
    Abstract: An imaging device includes an imaging unit that captures an image of a subject, a substrate on which the imaging unit is mounted, a lens barrel holding a lens, a shield plate surrounding the substrate and including a metal, and a case accommodating the substrate, the lens barrel, and the shield plate and including a metal. The shield plate is in contact with the case. The substrate includes a ground potential portion electrically connected to the shield plate and the case.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: July 5, 2022
    Assignee: NIDEC COPAL CORPORATION
    Inventor: Yuta Nakamura
  • Publication number: 20220199934
    Abstract: A luminescent film includes a host compound, a blue phosphorescent compound, and a blue fluorescent compound, in which an emission spectrum of the blue phosphorescent compound and an absorption spectrum of the blue fluorescent compound have portions overlapping with each other; shortest wavelength-side maximum emission wavelengths of the blue phosphorescent compound (abbreviated as “BPM” in the expression) and the blue fluorescent compound (abbreviated as “BFM” in the expression) satisfy the following expression (1): ?BFM??BPM: expression (1) in which ?BFM represents the shortest wavelength-side maximum emission wavelength of the blue fluorescent compound and ?BPM represents the shortest wavelength-side maximum emission wavelength of the blue phosphorescent compound; and light emission derived from the blue fluorescent compound is detected.
    Type: Application
    Filed: March 4, 2022
    Publication date: June 23, 2022
    Inventors: Kenichi TABATA, Yuta NAKAMURA, Taketo NAMIKAWA, Satoru INOUE, Yasuo MIYATA, Hiromoto II
  • Patent number: 11362597
    Abstract: The present power control device includes an inverter, a step-up/down converter, a first capacitor, a second capacitor, and a control device. The step-up/down converter includes an upper arm and a lower arm that are switching elements, and a reactor that has a first end and a second end, the first end being connected to the first capacitor, and the second end being connected between the upper arm and the lower arm. The control device is configured to fix the lower arm in an off state and control the upper arm such that the upper arm switches at a predetermined duty ratio.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: June 14, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Nobukatsu Yamaguchi, Yuta Nakamura, Takami Suzuki
  • Publication number: 20220182006
    Abstract: A control device that does not require arithmetic processing of a phase current can be provided. A control device in which a plurality of switching legs including a pair of semiconductor switching elements constituting an upper arm and a lower arm are provided in a number corresponding to the number of phases of a motor that is a load includes a switch short circuit detection unit configured to detect a short circuit failure of the semiconductor switching element, and a control unit configured to execute determination processing of determining whether the short circuit failure has occurred in the upper arm or the lower arm on the basis of a result of detection by the switch short circuit detection unit, and to set all the semiconductor switching elements that constitute an arm in which a short circuit failure has occurred on the basis of a result of the determination processing.
    Type: Application
    Filed: December 2, 2021
    Publication date: June 9, 2022
    Inventors: Yuta NAKAMURA, Masatoshi GOTO, Yoshinori SAGIYA, Kazunari KUROKAWA, Shugo UENO, Shintaro TAI
  • Publication number: 20220166305
    Abstract: A gate driving power source device can be miniaturized by sharing power source units, and a large current can be prevented from locally flowing in a single chip even when a short-circuit failure occurs in a multi-phase conversion circuit included in a power conversion device. There is provided a shared power source unit supplying a shared DC power source to a gate drive circuit provided in any one of a plurality of lower arms of multi-phase conversion circuits or any one of a plurality of upper arms of the multi-phase conversion circuit and gate drive circuits provided in upper arms or lower arms of other conversion circuits.
    Type: Application
    Filed: November 17, 2021
    Publication date: May 26, 2022
    Inventors: Masatoshi GOTO, Yuta NAKAMURA, Yoshinori SAGIYA, Kazunari KUROKAWA, Shugo UENO, Shintaro TAI
  • Patent number: 11332909
    Abstract: There is provided a working vehicle capable of simplifying a structure and reducing manufacturing costs by realizing a configuration in which a tying-down attachment point doubles as a lifting attachment point. A working vehicle according to the present invention includes tying-down attachment points for locking a tightening member for preventing reversal at the time of transportation or parking in at least the front of a vehicle body, in which the tying-down attachment points are arranged at right-and-left two places on a front end surface of the vehicle body, capable of locking a lifting member for lifting the vehicle body upward and having strength in a vertical direction enough to withstand a load applied at the time of lifting the vehicle body upward after locking the lifting member, thereby doubling as lifting attachment points.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: May 17, 2022
    Assignee: TAKEUCHI MFG. CO., LTD.
    Inventors: Shingo Takeuchi, Yuta Nakamura
  • Publication number: 20220137735
    Abstract: A touch panel device includes a first conductive film having first and second regions, at least a part of the first conductive film between the first and the second regions being removed, a second conductive film laminated on the first conductive film across a gap, first and second terminals that output signals, a first electrode electrically connected to the first terminal, a second electrode facing the first electrode across the first region, a first resistor provided on the first conductive film in the second region and having a pair of electrodes, the pair of electrodes facing each other across a first resistance region in the first conductive film, one of the electrodes being electrically connected to the second electrode, the other of the electrodes being electrically connected to the second terminal, and a first switch electrically connecting the first conductive film to the second conductive film, in the second region.
    Type: Application
    Filed: September 17, 2021
    Publication date: May 5, 2022
    Applicant: FUJITSU COMPONENT LIMITED
    Inventors: Yuta NAKAMURA, Yutaka UENO, Masaya MOROHASHI, Takuya OZAWA, Hideyuki HAGIHARA, Yuji MAKIUCHI
  • Patent number: 11310401
    Abstract: An image capture apparatus to which a module having a predetermined function can be attached, the apparatus comprises a connecting unit configured to attach the module, a heat transfer unit configured to exchange heat with the module, a communication unit configured to communicate with the module, and a control unit configured to control a heat dissipation state of a system including the image capture apparatus and the module on the basis of information pertaining to heat dissipation performance of the module and position information pertaining to an attachment position of the module, the information having been acquired by the communication unit.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: April 19, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hironobu Makara, Tadanori Saito, Kazuaki Maruhashi, Takamichi Kosugi, Takutomi Ogawa, Tsubasa Nakatani, Naohiro Arai, Manabu Abe, Takeshi Hamada, Manami Gunji, Yuya Nagata, Yuta Nakamura, Hiroshi Yano
  • Patent number: 11302882
    Abstract: A luminescent film includes a host compound, a blue phosphorescent compound, and a blue fluorescent compound, in which an emission spectrum of the blue phosphorescent compound and an absorption spectrum of the blue fluorescent compound have portions overlapping with each other; shortest wavelength-side maximum emission wavelengths of the blue phosphorescent compound (abbreviated as “BPM” in the expression) and the blue fluorescent compound (abbreviated as “BFM” in the expression) satisfy the following expression (1): ?BFM??BPM: expression (1) in which ?BFM represents the shortest wavelength-side maximum emission wavelength of the blue fluorescent compound and ?BPM represents the shortest wavelength-side maximum emission wavelength of the blue phosphorescent compound; and light emission derived from the blue fluorescent compound is detected.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: April 12, 2022
    Assignee: Merck Patent GmbH
    Inventors: Kenichi Tabata, Yuta Nakamura, Taketo Namikawa, Satoru Inoue, Yasuo Miyata, Hiromoto Ii
  • Patent number: 11274222
    Abstract: An ink contains a coloring material, a urethane resin, diethylene glycol diethyl ether, and a siloxane compound, wherein diethylene glycol diethyl ether has a proportion of 6.0 percent or greater by mass of the total amount of the ink.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: March 15, 2022
    Assignee: Ricoh Company, LTD.
    Inventors: Yuta Nakamura, Naoto Shimura
  • Patent number: 11255570
    Abstract: A ceiling-embedded air conditioner includes: a box-shaped housing that is embedded in a ceiling of an air-conditioned room; a square decorative panel that is attached to a lower surface of the housing and covers the ceiling; main body outlets that are provided along respective four sides of a bottom surface of the housing and blow heat-exchanged air; outlets that are provided in the decorative panel in correspondence with the main body outlets; corner blowoff units that are provided in the decorative panel in correspondence with coupling portions for coupling the outlets; a blowoff path that is circumferentially provided in the decorative panel in correspondence with the outlets and the corner blowoff units; and wind direction plates that are rotatably provided along the respective sides of the decorative panel so as to cover or open the blowoff path and are longer than a long side of the outlets.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: February 22, 2022
    Assignee: FUJITSU GENERAL LIMITED
    Inventors: Naoto Fujita, Yuta Nakamura
  • Publication number: 20220024217
    Abstract: Provided is an ink set including: an ink containing a cyan pigment; an ink containing a magenta pigment; and an ink containing a yellow pigment, wherein the proportion of the cyan pigment is 0.70% by mass or greater but 1.40% by mass or less, and wherein the proportion of the magenta pigment and the proportion of the yellow pigment are both higher than the proportion of the cyan pigment.
    Type: Application
    Filed: January 21, 2020
    Publication date: January 27, 2022
    Inventors: Hiromi SAKAGUCHI, Itsuro SASAKI, Ayaka TANAKA, Naoto SHIMURA, Shunsuke HORIE, Hiroshi GOTOU, Yuta NAKAMURA
  • Publication number: 20220020802
    Abstract: There is provided an image sensor including: a light polarizing unit configured to transmit light in a specific light polarization direction out of incident light; a pixel configured to generate an image signal corresponding to the light transmitted through the light polarizing unit; and a signal transfer unit formed simultaneously with the light polarizing unit and configured to transfer either of the image signal and a control signal that controls generation of the image signal.
    Type: Application
    Filed: September 29, 2021
    Publication date: January 20, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventor: Yuta NAKAMURA
  • Publication number: 20210397277
    Abstract: A touch panel comprises: a first electrode substrate having a first conductive film; a second electrode substrate having a decorative portion facing the first conductive film; and a case configured to contain the first electrode substrate, wherein the first electrode substrate has a larger area than the second electrode substrate, and wherein the case is configured to cover an outer peripheral portion of the first electrode substrate outside the second electrode substrate, and not to cover the second electrode substrate.
    Type: Application
    Filed: June 15, 2021
    Publication date: December 23, 2021
    Inventors: Hideyuki Hagihara, Yutaka Ueno, Masaya Morohashi, Takuya Ozawa, Yuta Nakamura
  • Patent number: 11199757
    Abstract: An imaging device includes a first case, a second case joined to the first case, a substrate receiving an electronic component accommodated in an internal space defined by the first and second cases, a lens barrel holding a lens and supported by the first or second case, and a waterproof seal held in a waterproof-seal holding space between the first and second cases. The first case has a first surface substantially perpendicular to an optical axis, a second surface substantially parallel to the optical axis, and an inner surface meeting the first surface and extending in the optical axis direction. The first and second surfaces form the waterproof-seal holding space. The inner surface faces the substrate edge. The second case has a third surface substantially perpendicular to the optical axis and a fourth surface substantially parallel to the optical axis. The third and fourth surfaces form the waterproof-seal holding space.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: December 14, 2021
    Assignee: NIDEC COPAL CORPORATION
    Inventor: Yuta Nakamura