Patents by Inventor Hiroyuki Nakamura

Hiroyuki 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).

  • Liquid ejecting apparatus
    Patent number: 11110718
    Abstract: A liquid ejecting apparatus includes a liquid ejecting head configured to eject a liquid, a liquid supply flow path configured to supply the liquid from a liquid container containing the liquid to the liquid ejecting head, a pressurizing portion pressurizing an inside of the liquid supply flow path, and an solenoid valve which is provided in the liquid supply flow path and which opens the liquid supply flow path during energization and closes the liquid supply flow path during de-energization, in which open and closed states of the solenoid valve are forcibly switched in accordance with a pressure change by the pressurizing portion.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: September 7, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Hiroyuki Nakamura, Ayumi Yokoo, Kazuhiko Sato
  • RADIO COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND TRANSMITTING STATION DEVICE
    Publication number: 20210273705
    Abstract: A radio communication system includes a transmitting station, and at least one receiving apparatus.
    Type: Application
    Filed: July 23, 2019
    Publication date: September 2, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hayato FUKUZONO, Keita KURIYAMA, Toshio ITO, Shuta UENO, Masafumi YOSHIOKA, Tsutomu TATSUTA, Hiroyuki NAKAMURA
  • METHOD FOR PRODUCING AMIDE
    Publication number: 20210261610
    Abstract: A method for producing an amide includes: reacting arginines, arginine derivatives or arginine analogs in which two amino groups or imino groups in the side chain are protected by protecting groups with a halogenated formate ester and then reacting with an amine.
    Type: Application
    Filed: May 28, 2019
    Publication date: August 26, 2021
    Inventors: Shinichiro FUSE, Hiroyuki NAKAMURA, Yuma OTAKE, Jun-ichi OGAWA, Shun-ichi MIYAZAKI, Atsushi ITO
  • Multiplexer including filter with two types of acoustic wave resonators
    Patent number: 11101787
    Abstract: Multiplexers are disclosed. A multiplexer can include a first filter and a second filter that are coupled to a common node. The second filter can include a first type of acoustic wave resonators (e.g., bulk acoustic wave resonators) and a series acoustic wave resonator of a second type (e.g., a surface acoustic wave resonator) that is coupled between the acoustic wave resonators of the first type and the common node. The first filter can provide a single-ended radio frequency signal. In certain embodiments, the first filter can be a receive filter and the second filter can be a transmit filter.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: August 24, 2021
    Assignee: Skyworks Solutions, Inc.
    Inventors: Yoshiaki Ando, Yasuyuki Saito, Hiroyuki Nakamura
  • LIQUID EJECTING APPARATUS AND RECORDING SYSTEM
    Publication number: 20210237458
    Abstract: A liquid ejecting apparatus includes a transport unit that transports a medium along a transport path, a liquid ejecting head that performs recording on the transported medium by ejecting liquid from a nozzle formed at a nozzle surface, a mounting portion on which a liquid storage portion for storing the liquid supplied to the liquid ejecting head is mounted, and a first discharge port that delivers the medium on which the recording is performed toward a media processing apparatus that performs processing on the medium, in which the mounting portion is disposed at a position higher than the nozzle surface, and a first transport path which is a portion of the transport path from a position corresponding to the liquid ejecting head to the first discharge port passes above the mounting portion.
    Type: Application
    Filed: April 22, 2021
    Publication date: August 5, 2021
    Inventors: Hiroyuki NAKAMURA, Izumi NOZAWA
  • Filter including two types of acoustic wave resonators
    Patent number: 11075616
    Abstract: An acoustic wave device is disclosed. The acoustic wave device can include a transmit filter that includes bulk acoustic wave resonators and a series surface acoustic wave resonator that is coupled between the bulk acoustic wave resonators and a transmit output node. The acoustic wave device can also include a loop circuit that is coupled to the transmit filter. The loop circuit can generate an anti-phase signal to a target signal at a particular frequency.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: July 27, 2021
    Assignee: Skyworks Solutions, Inc.
    Inventors: Yoshiaki Ando, Yasuyuki Saito, Hiroyuki Nakamura
  • SEMICONDUCTOR DEVICE AND CRACK DETECTION METHOD
    Publication number: 20210223305
    Abstract: Provided is a semiconductor device that can detect the cracking progress with high precision. A semiconductor device is formed using a semiconductor substrate, and includes an active region in which a semiconductor element is formed, and an edge termination region outside the active region. A crack detection structure is termed in the edge termination region of the semiconductor substrate. The crack detection structure includes: a trench formed in the semiconductor substrate and extending in a circumferential direction of the edge termination region; an inner-wall insulating film formed on an inner wall of the trench; an embedded electrode formed on the inner-wall insulating film and embedded into the trench; and a monitor electrode formed on the semiconductor substrate and connected to the embedded electrode.
    Type: Application
    Filed: November 10, 2020
    Publication date: July 22, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kazutoyo TAKANO, Hiroyuki NAKAMURA
  • LIQUID EJECTING APPARATUS
    Publication number: 20210170756
    Abstract: A liquid ejecting apparatus includes a liquid ejecting head that ejects liquid and an attachment portion to which a liquid container that stores the liquid supplied to the liquid ejecting head is detachably attached. The attachment portion includes a liquid inlet portion that is coupled to a liquid outlet provided in the liquid container, and an urging mechanism that urges the liquid container in a direction opposite to an attaching direction in which the liquid container is attached to the attachment portion. The urging mechanism includes an elastic member that is in close contact with the liquid container attached to the attachment portion and that is provided below the liquid inlet portion in a direction of gravity.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 10, 2021
    Inventors: Hiroyuki NAKAMURA, Masaru KOBASHI
  • Liquid ejecting apparatus and recording system
    Patent number: 11020975
    Abstract: A liquid ejecting apparatus includes a transport unit that transports a medium along a transport path, a liquid ejecting head that performs recording on the transported medium by ejecting liquid from a nozzle formed at a nozzle surface, a mounting portion on which a liquid storage portion for storing the liquid supplied to the liquid ejecting head is mounted, and a first discharge port that delivers the medium on which the recording is performed toward a media processing apparatus that performs processing on the medium, in which the mounting portion is disposed at a position higher than the nozzle surface, and a first transport path which is a portion of the transport path from a position corresponding to the liquid ejecting head to the first discharge port passes above the mounting portion.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: June 1, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Hiroyuki Nakamura, Izumi Nozawa
  • ACOUSTIC WAVE DEVICE WITH ACOUSTIC VELOCITY REGIONS
    Publication number: 20210159879
    Abstract: Aspects of this disclosure relate to a surface acoustic wave device with a vertical stack over a piezoelectric layer. The vertical stack can include a first acoustic reflector disposed on the piezoelectric layer, a second acoustic reflector disposed on the piezoelectric layer, and an interdigital transducer electrode disposed on the piezoelectric layer and positioned between the first acoustic reflector and the second acoustic reflector. The interdigital transducer electrode has a first side that is closer to the first acoustic reflector and a second side that is closer to the second acoustic reflector. A vertical arrangement of the vertical stack can be configured such that an acoustic wave propagation velocity of a first region between the first side and a first reflector is faster than an acoustic wave propagation velocity of a second region between the first side and the second side.
    Type: Application
    Filed: November 16, 2020
    Publication date: May 27, 2021
    Inventors: Joshua James Caron, Rei Goto, Benjamin Paul Abbott, Hiroyuki Nakamura
  • ENERGY CONFINEMENT IN ACOUSTIC WAVE DEVICES
    Publication number: 20210159883
    Abstract: Energy confinement in acoustic wave devices. In some embodiments, a surface acoustic wave device can include a quartz substrate, a piezoelectric film formed from LiTaO3 or LiNbO3 and disposed over the quartz substrate, and an interdigital transducer electrode formed over the piezoelectric film. The surface acoustic wave device can further include a bonding layer implemented over the piezoelectric film, and a cap layer formed over the bonding layer to thereby substantially confine energy of a propagating wave below the cap layer.
    Type: Application
    Filed: November 22, 2020
    Publication date: May 27, 2021
    Inventors: Michio KADOTA, Shuji TANAKA, Yoshimi ISHII, Hiroyuki NAKAMURA, Keiichi MAKI, Rei GOTO
  • ACOUSTIC WAVE FILTER WITH ACOUSTIC VELOCITY ADJUSTMENT STRUCTURE
    Publication number: 20210159880
    Abstract: Aspects of this disclosure relate to a surface acoustic wave filter with an acoustic velocity adjustment structure. The surface acoustic wave filter can include a first interdigital transducer electrode disposed on a piezoelectric layer, an acoustic reflector disposed on the piezoelectric layer, and a second interdigital transducer electrode disposed on the piezoelectric layer. The second interdigital transducer electrode is longitudinally coupled to the first interdigital transducer electrode and positioned between the first interdigital transducer electrode and the acoustic reflector. The acoustic velocity adjustment structure can be positioned over at least a gap between the first interdigital transducer electrode and the second interdigital transducer electrode.
    Type: Application
    Filed: November 16, 2020
    Publication date: May 27, 2021
    Inventors: Joshua James Caron, Rei Goto, Benjamin Paul Abbott, Hiroyuki Nakamura
  • ACOUSTIC WAVE DEVICE WITH VELOCITY ADJUSTMENT LAYER
    Publication number: 20210159881
    Abstract: Aspects of this disclosure relate to a surface acoustic wave device that includes a first reflector over a piezoelectric layer, a second reflector over the piezoelectric layer, and an interdigital transducer electrode structure over the piezoelectric layer and positioned between the first reflector and the second reflector. The surface acoustic wave device includes a velocity adjustment layer arranged to adjust acoustic velocity in a region of the surface acoustic wave device. The velocity adjustment layer can be a high speed layer or a low speed layer.
    Type: Application
    Filed: November 16, 2020
    Publication date: May 27, 2021
    Inventors: Joshua James Caron, Rei Goto, Benjamin Paul Abbott, Hiroyuki Nakamura
  • SURFACE ACOUSTIC WAVE DEVICE
    Publication number: 20210152154
    Abstract: Aspects of this disclosure relate to a surface acoustic wave device. The surface acoustic wave device includes a piezoelectric layer and an interdigital transducer. The interdigital transducer electrode includes a pair of electrodes, each electrode having a bus bar and fingers extending from the bus bar. The interdigital transducer electrode has an interdigital region defined by a portion of the fingers of the electrodes that interdigitate with each other. A dielectric layer is disposed over the interdigital transducer electrode outside the interdigital region and configured to reduce a loss of the surface acoustic wave device.
    Type: Application
    Filed: November 12, 2020
    Publication date: May 20, 2021
    Inventors: Gong Bin Tang, Rei Goto, Hiroyuki Nakamura
  • Printing apparatus with jam release mechanism
    Patent number: 11001469
    Abstract: A printing apparatus includes: a conveyor including a first pair of conveyance rollers and a second pair of conveyance rollers each configured to nip and convey a sheet; a first jam releaser configured to separate rollers of the first pair of conveyance rollers from each other; a second jam releaser configured to separate rollers of the second pair of conveyance rollers from each other; and a controller configured to control the conveyor. In stopping sheet conveyance by the conveyor upon occurrence of a failure, the controller controls the conveyor to prevent a sheet from being nipped only by the first pair of conveyance rollers prior to separation of the rollers of the first pair of conveyance rollers from each other by the first jam releaser.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: May 11, 2021
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Hiroyuki Nakamura
  • METHOD FOR PRODUCING AMIDE
    Publication number: 20210130393
    Abstract: A method for producing an amide includes: dehydrating and condensing carboxylic acids and then reacting them with a base, and reacting them with an amine.
    Type: Application
    Filed: May 28, 2019
    Publication date: May 6, 2021
    Inventors: Shinichiro FUSE, Hiroyuki NAKAMURA, Yuma OTAKE, Jun-ichi OGAWA, Shun-ichi MIYAZAKI, Atsushi ITO
  • SEMICONDUCTOR DEVICE
    Publication number: 20210118781
    Abstract: A semiconductor device includes: a semiconductor chip including a field effect transistor for switching; a die pad on which the semiconductor chip is mounted via a first bonding material; a lead electrically connected to a pad for source of the semiconductor chip through a metal plate; a lead coupling portion formed integrally with the lead; and a sealing portion for sealing them. A back surface electrode for drain of the semiconductor chip and the die pad are bonded via the first bonding material, the metal plate and the pad for source of the semiconductor chip are bonded via a second bonding material, and the metal plate and the lead coupling portion are bonded via a third bonding material. The first, second, and third bonding materials have conductivity, and an elastic modulus of each of the first and second bonding materials is lower than that of the third bonding material.
    Type: Application
    Filed: October 1, 2020
    Publication date: April 22, 2021
    Inventors: Kazunori HASEGAWA, Yuichi YATO, Hiroyuki NAKAMURA, Yukihiro SATO, Hiroya SHIMOYAMA
  • NON-INSULATED POWER MODULE
    Publication number: 20210118780
    Abstract: An object of the present invention is to achieve both securing an insulation distance and securing a chip mounting area in a non-insulated power module. A non-insulated power module includes a plurality of die pads, a plurality of semiconductor chips mounted on upper surfaces of the plurality of die pads, and a package sealing the semiconductor chips, in which lower surfaces of the plurality of die pads are exposed from a lower surface of the package, on the lower surface of the package, first grooves are formed in areas between the plurality of die pads, and the plurality of die pads have a trapezoidal cross-sectional shape in the thickness direction, in which an area of an upper surface is larger than an area of the lower surface.
    Type: Application
    Filed: July 17, 2020
    Publication date: April 22, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventor: Hiroyuki NAKAMURA
  • Therapeutic agent for fibrosis and inhibitor of nuclear translocation of phosphorylated Smad
    Patent number: 10980789
    Abstract: A therapeutic agent for fibrosis, whose active ingredient is constituted by a glucosylceramide synthase inhibitor or lactosylceramide synthase inhibitor, or both, inhibits the nuclear translocation of phosphorylated Smad, thereby treating and preventing fibrosis.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: April 20, 2021
    Assignee: NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY
    Inventors: Hiroyuki Nakamura, Toshihiko Murayama
  • Projection video display device
    Patent number: 10986317
    Abstract: A projection video display device includes a projection video display main body (main body) including a light source and a video display element and generating a video to be projected, a portrait converter that rotates the video generated by the main body around an optical axis by 90°, and a projection lens that magnifies and projects the video rotated by the portrait converter. The main body rotates directions of OSD (On Screen Display) images and in the video generated by the video display element to an opposite direction to or in the same direction as a rotation direction of the video by the portrait converter by 90°. Accordingly, the OSD image can be displayed in a direction in which it is easy for the user to see in portrait projection screens.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: April 20, 2021
    Assignees: MAXELL, LTD., HITACHI INDUSTRY & CONTROL SOLUTIONS, LTD.
    Inventors: Hiroyuki Nakamura, Kazuo Shikita, Satoshi Nakayama, Nobutaka Hotta, Hiroyuki Shinji