Patents by Inventor Shinichi Nakamura

Shinichi 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).

  • Publication number: 20210059053
    Abstract: This electrical connection structure for wiring boards comprises: a plurality of wiring boards which are arranged along one side of a display panel and distribute electric power and/or an electric signal for driving the display panel; and a connector which is mounted on the wiring boards adjacent to each other, and electrically connects the wiring boards via a belt-like wiring material. Terminal connecting region and connector fixing region of the wiring board are configured to enable both first mounting of the connector with a direction in which the belt-like wiring material is inserted from the display panel end and second mounting of the connector with a direction in which the belt-like wiring material is inserted from an end opposite to the display panel. Thus, the present invention provides an electrical connection structure for wiring boards, in which an insertion direction of a connector can be reversed.
    Type: Application
    Filed: January 24, 2018
    Publication date: February 25, 2021
    Inventor: SHINICHI NAKAMURA
  • Publication number: 20210043993
    Abstract: A filter circuit includes a signal path connecting first and second terminals having a pass band. An additional circuit is connected to a node between the first terminal and the filter circuit on the signal path and a node between the second terminal and the filter circuit on the signal path. The additional circuit includes a parallel circuit including first and second resonator groups connected in parallel and capacitor elements connected in series to the parallel circuit. The first and second resonator groups each include IDT electrodes in line in an acoustic-wave propagation direction. The additional circuit generates a signal having a phase opposite to a phase of a signal component in a frequency band that is not included in the pass band, among signals transmitted through filter circuit.
    Type: Application
    Filed: October 29, 2020
    Publication date: February 11, 2021
    Inventor: Shinichi NAKAMURA
  • Patent number: 10892738
    Abstract: A reception filter includes a parallel arm resonator, a first longitudinally coupled resonance device including first acoustic wave resonators, and a second longitudinally coupled resonance device including second acoustic wave resonators, and cascade-connected to the first longitudinally coupled resonance device. Each of the first and second acoustic wave resonators include one end connected to a ground, the parallel arm resonator and the first and second longitudinally coupled resonance devices are provided on a piezoelectric substrate, and a ground to which the parallel arm resonator is connected, a ground to which at least one of the first acoustic wave resonators is connected, and a ground to which at least one of the second acoustic wave resonators is connected are commonly connected on the piezoelectric substrate.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: January 12, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Tomoko Taguchi, Shinichi Nakamura
  • Publication number: 20200412334
    Abstract: A filter includes a transmission filter circuit and an additional circuit that is electrically connected in parallel with at least a portion of the transmission filter circuit. The additional circuit includes a resonator group including a plurality of interdigital transducer electrodes provided adjacent to or in a vicinity of each other in an acoustic wave propagation direction, a first capacitive element electrically connected between the resonator group and one end of the additional circuit, and a second capacitive element connected between a ground and a signal path electrically connecting the resonator group and the first capacitive element. A capacitance of the second capacitive element is greater than about 0 pF and less than or substantially equal to about 2.0 pF.
    Type: Application
    Filed: June 11, 2020
    Publication date: December 31, 2020
    Inventor: Shinichi NAKAMURA
  • Publication number: 20200207081
    Abstract: A liquid-discharging-head includes a nozzle having a first-nozzle-portion having a first-sectional-area and a second-nozzle-portion having a second-sectional-area larger than the first-sectional-area, a liquid chamber which communicates with the nozzle, and a piezoelectric-element which changes a pressure inside the liquid chamber, in which the piezoelectric-element is driven from the control section, and the liquid-discharging-head executes a first control in which an apex of a liquid surface is drawn into the second-nozzle-portion in a state in which an inner wall surface of the first-nozzle-portion is covered by a liquid film by decreasing the pressure inside the liquid chamber, and a second control in which a shape of the apex of the liquid surface is inverted to a protruding shape towed the opening and the droplet is discharged from the nozzle by increasing the pressure inside the liquid chamber in a state in which the inner wall surface is covered by the liquid film.
    Type: Application
    Filed: December 20, 2019
    Publication date: July 2, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takahiro KATAKURA, Hirofumi SAKAI, Keigo SUGAI, Shinichi NAKAMURA
  • Publication number: 20200162057
    Abstract: A transmission filter includes a transmission filter circuit and an additional circuit. The transmission filter circuit is provided between a first terminal and a second terminal. Between the first terminal and the second terminal, the additional circuit is connected in parallel with at least a portion of the transmission filter circuit. The additional circuit includes an IDT electrode group including a plurality of IDT electrodes located next to each other in an acoustic wave propagation direction and two reflectors that sandwich the IDT electrode group and having different numbers of pairs of electrode fingers.
    Type: Application
    Filed: October 18, 2019
    Publication date: May 21, 2020
    Inventor: Shinichi NAKAMURA
  • Publication number: 20200124362
    Abstract: In this flat extruded aluminum multi-port tube, the corrosion-resistance, at inner surfaces of a plurality of flow passages independently and parallelly extending in the tube axial direction, is effectively enhanced. In a flat extruded aluminum multi-port tube 10 formed by an extrusion by employing an aluminum tube material and an aluminum sacrificial anode material having an electrochemically lower potential than the aluminum tube material, the aluminum sacrificial anode material is exposed to form a sacrificial anode portion 18 at least in a part of an inner circumferential portion in each of the plurality of flow passages 12.
    Type: Application
    Filed: December 18, 2019
    Publication date: April 23, 2020
    Applicants: UACJ CORPORATION, UACJ EXTRUSION CORPORATION, DENSO CORPORATION
    Inventors: Shinichi NAKAMURA, Naoki YAMASHITA, Seiichi NAGAO, Satoshi SHIBATA, Kazuhisa NAITOU, Takeshi OKINOTANI, Susumu ICHIKAWA, Akira ITOH
  • Patent number: 10618062
    Abstract: A fluid discharge apparatus includes a storage chamber, a moving body, a drive mechanism, and a coupling member. The storage chamber includes a discharge port to discharge the fluid. The moving body includes a leading end portion facing the discharge port inside the storage chamber. The drive mechanism is positioned on the opposite side of the moving body to the discharge port, and performs an operation to reciprocate the moving body. The coupling member couples the moving body to the drive mechanism such that the moving body is attachable and detachable. The coupling member includes a biasing section to apply an elastic force in a direction to move the moving body toward the drive mechanism, and, while pressing the moving body against the coupling member, to support the moving body in a state in which the moving body is capable of elastic displacement in a direction toward the discharge port.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: April 14, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Shinichi Nakamura, Takahiro Katakura, Keigo Sugai, Hirofumi Sakai, Junichi Sano
  • Patent number: 10618279
    Abstract: A liquid discharging apparatus includes: a liquid compartment; a flowing-in passage that is in communication with the liquid compartment through a flowing-in opening, the liquid flowing through the flowing-in passage into the liquid compartment; a nozzle that is in communication with the liquid compartment through a communication opening; a capacity changer that causes the liquid contained in the liquid compartment to be discharged from the nozzle by causing a displacement of an inner wall surface of the liquid component and changing capacity of the liquid compartment; and a flowing-in passage resistance changer that changes capacity of the flowing-in passage to change flow resistance of the flowing-in passage. In the liquid compartment, as viewed from the flowing-in opening, the communication opening is located in front of a center-of-displacement portion, an amount of the displacement of which is largest in the inner wall surface displaced by the capacity changer.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: April 14, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Hirofumi Sakai, Takahiro Katakura, Keigo Sugai, Shinichi Nakamura, Junichi Sano
  • Patent number: 10618276
    Abstract: A liquid ejecting apparatus includes a plurality of nozzles, a plurality of pressure chambers, a plurality of pressure-generation-elements, a plurality of inflow channels, a first-channel-resistance-changing-section, and a control-unit. The control-unit repeats control of switching between a first state in which the control-unit controls the first-channel-resistance-changing-section to collectively increase channel resistance of the inflow channels and a second state in which the control-unit controls the first-channel-resistance-changing-section to collectively decrease the channel resistance of the inflow channels.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: April 14, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Takahiro Katakura, Keigo Sugai, Hirofumi Sakai, Shinichi Nakamura, Junichi Sano
  • Patent number: 10549532
    Abstract: A liquid ejecting apparatus including; a first liquid chamber that communicates with a first nozzle, a first channel, and a first outflow channel; a second liquid chamber that communicates with a second nozzle, a second channel, and a second outflow channel; a first volume changing portion that changes a volume of the first liquid chamber to eject liquid from the first nozzle; a second volume changing portion that changes a volume of the second liquid chamber to eject the liquid from the second nozzle; a first inflow channel resistance changing portion that changes a flow channel resistance of the first inflow channel, a second inflow channel resistance changing portion that changes a flow channel resistance of the second inflow channel, and an inflow channel-side common drive portion that applies drive forces to the first inflow channel resistance changing portion and the second inflow channel resistance changing portion.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: February 4, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Keigo Sugai, Takahiro Katakura, Hirofumi Sakai, Shinichi Nakamura, Junichi Sano
  • Patent number: 10523174
    Abstract: An elastic wave device includes an unbalanced first bandpass filter and a second bandpass filter. The first bandpass filter includes first and second longitudinally coupled resonator elastic wave filters that are connected in parallel between an output terminal and an antenna terminal, and first and second elastic wave resonators respectively connected between the first and second longitudinally coupled resonator elastic wave filters and the antenna terminal. The second bandpass filter is connected to the antenna terminal and has a passband different from a passband of the first bandpass filter. An elastic wave wavelength specified by an electrode finger pitch of an IDT electrode included in the first elastic wave resonator and an elastic wave wavelength specified by an electrode finger pitch of an IDT electrode included in the second elastic wave resonator are different from each other.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: December 31, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Shinichi Nakamura
  • Publication number: 20190372335
    Abstract: A body of a power feed control device includes a housing recess to house a module including a holder, the first sub-bus bar, the second sub-bus bar, the third sub-bus bar, and a zero-phase-sequence current transformer. Lengths of respective extended pieces of the first sub-bus bar, the second sub-bus bar, and the third sub-bus bar are different from each other. The holder includes a rod portion, a post portion, and an extended portion. The extended portion covers the respective extended pieces of the first sub-bus bar, the second sub-bus bar, and the third sub-bus bar.
    Type: Application
    Filed: January 29, 2018
    Publication date: December 5, 2019
    Inventors: Takashi KAWAMOTO, Takao AKIOKA, Naoki FUKUO, Shinichi NAKAMURA, Masahiko KIMURA
  • Patent number: 10479097
    Abstract: A liquid ejecting apparatus includes a liquid chamber that is in communication with a nozzle that ejects liquid, a volume changing device that changes volume of the liquid chamber, an inflow channel that is connected to the liquid chamber and enables the liquid to flow into the liquid chamber, a discharge channel that discharges the liquid, a first flow path resistance changing device that changes flow path resistance of the inflow channel, a liquid supply section that supplies the liquid to the inflow channel by pressurizing the liquid, and a bypass channel that enables the liquid supplied from the liquid supply section to bypass the inflow channel and to flow into the discharge channel.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: November 19, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Takahiro Katakura, Shinichi Nakamura, Junichi Sano, Hirofumi Sakai, Keigo Sugai
  • Patent number: 10434535
    Abstract: A fluid ejection device is a fluid ejection device adapted to eject a fluent material, including a fluent material chamber supplied with the fluent material, a moving object, which can reciprocate in the fluent material chamber, a nozzle part having a discharge port communicating with the fluent material chamber, and an inner wall on a periphery of the discharge port on which a tip part of the moving object can contact from the fluent material chamber side, and an actuator having contact with a back end part of the moving object to reciprocate the moving object to thereby discharge the fluent material from the discharge port. The actuator has a plurality of solid-state displacement elements connected in series to each other, and one end of one of the plurality of solid-state displacement elements has contact with the back end part of the moving object.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: October 8, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Keigo Sugai, Eiji Okamoto, Shinichi Nakamura
  • Patent number: 10399336
    Abstract: A liquid ejecting apparatus includes a liquid chamber in communication with a nozzle, a volume changing unit configured to change a volume of the liquid chamber, an inflow passage through which the liquid flows into the liquid chamber, an outflow passage through which the liquid flows out of the liquid chamber, a passage resistance changing unit configured to change a passage resistance of the outflow passage, and a controller configured to control the volume changing unit to reduce the volume of the liquid chamber so as to cause the liquid to be ejected through the nozzle. In filling the liquid chamber with the liquid for ejection of the liquid through the nozzle, the controller controls the passage resistance changing unit to change the passage resistance of the outflow passage to an increased passage resistance and controls the volume changing unit to increase the volume of the liquid chamber.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: September 3, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Takahiro Katakura, Keigo Sugai, Hirofumi Sakai, Shinichi Nakamura, Junichi Sano
  • Patent number: 10384227
    Abstract: A fluid discharging apparatus includes an accommodation unit that accommodates a fluid, a discharge port that communicates with the accommodation unit, a moving object that moves in a first direction toward the discharge port and in a second direction away from the discharge port in the accommodation unit, and a control unit that controls driving of the moving object. The control unit performs discharging processing and moving processing. In the discharging processing, the discharge port is opened by moving the moving object from a closed position at which the discharge port is closed, in the second direction, and then the fluid is extruded and discharged from the discharge port by moving the moving object in the first direction. In the moving processing, the moving object is moved in the second direction during a period when the fluid is discharged from the discharge port in the discharging processing.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: August 20, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Hirofumi Sakai, Takahiro Katakura, Keigo Sugai, Junichi Sano, Shinichi Nakamura
  • Publication number: 20190245516
    Abstract: A reception filter includes a parallel arm resonator, a first longitudinally coupled resonance device including first acoustic wave resonators, and a second longitudinally coupled resonance device including second acoustic wave resonators, and cascade-connected to the first longitudinally coupled resonance device. Each of the first and second acoustic wave resonators include one end connected to a ground, the parallel arm resonator and the first and second longitudinally coupled resonance devices are provided on a piezoelectric substrate, and a ground to which the parallel arm resonator is connected, a ground to which at least one of the first acoustic wave resonators is connected, and a ground to which at least one of the second acoustic wave resonators is connected are commonly connected on the piezoelectric substrate.
    Type: Application
    Filed: April 17, 2019
    Publication date: August 8, 2019
    Inventors: Tomoko TAGUCHI, Shinichi NAKAMURA
  • Patent number: 10363752
    Abstract: A liquid discharge apparatus includes a liquid chamber communicating with a nozzle that discharges liquid; a capacity changer that changes a capacity of the chamber; an inflow path connected to the chamber allowing the liquid to enter the chamber; an outflow path connected to the liquid chamber allowing the liquid to exit the chamber; a first resistance changer changing a flow resistance of the inflow path; a second resistance changer changing a flow resistance of the outflow path; and a controller controlling the capacity changer, the first resistance changer, and the second resistance changer. The controller allows the nozzle to discharge the liquid by increasing the flow resistance of the inflow and outflow paths, increasing the capacity of the chamber, and then, while the flow resistance of the inflow and outflow paths remain increased, decreasing the capacity of the chamber.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: July 30, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Hirofumi Sakai, Shinichi Nakamura, Junichi Sano, Takahiro Katakura, Keigo Sugai
  • Patent number: 10336009
    Abstract: The color of object data that indicates the shape and the color of an object is reproduced faithfully when modeling an object. A model is formed by discharging droplets having the same color from droplet discharging units onto a medium, based on the same reference signal. Colorimetry is performed on the model, and a first-portion and a second-portion having a color with a higher density are specified. The liquid amount of droplets per unit area to be discharged from droplets discharging units that formed the first-portion and the liquid amount of droplets per unit area to be discharged from droplets discharging units that formed the second-portion are adjusted such that a difference in density of colors to be reproduced decreases. The object is modeled by repeating processing for discharging droplets from the droplet discharging units based on the object data.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: July 2, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Shinichi Nakamura, Hiroshi Wada