Patents by Inventor Atsushi Matsuo

Atsushi Matsuo 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: 20220271758
    Abstract: A vibrating element includes a quartz crystal substrate having a first vibrating portion having a pair of first excitation electrodes, a second vibrating portion having a pair of second excitation electrodes, and a third vibration portion having a pair of third excitation electrodes, in which at least one second excitation electrode of the pair of second excitation electrodes is formed into a first inclined surface inclined with respect to both main surfaces of the quartz crystal substrate, and at least one third excitation electrode of the pair of third excitation electrodes is formed into a second inclined surface inclined with respect to both the main surfaces and the first inclined surface.
    Type: Application
    Filed: February 22, 2022
    Publication date: August 25, 2022
    Inventors: Atsushi Matsuo, Ryuta Nishizawa
  • Publication number: 20220242934
    Abstract: The present inventors have successfully prepared an antibody Fc region dimer that has binding activity against each of an antigen and Fc?R, but does not bind to the antigen and the Fc?R at the same time, and a polypeptide comprising the Fc region dimer. The present invention enables the preparation of a multispecific binding polypeptide capable of avoiding an adverse reaction that may be caused by its binding to an antigen and Fc?R at the same time. Thus, the present invention provides a polypeptide suitable as a drug.
    Type: Application
    Filed: September 24, 2021
    Publication date: August 4, 2022
    Applicant: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Tomoyuki Igawa, Naoka Hironiwa, Shojiro Kadono, Atsushi Matsuo, Taichi Kuramochi, Futa Mimoto
  • Patent number: 11290081
    Abstract: A resonator element includes a quartz crystal substrate including a supporting section, a resonating section, and a coupling section coupling the supporting section and the resonating section and having thickness smaller than the thickness of the supporting section, the supporting section including a first principal plane and a first side surface coupling the first principal plane and the coupling section, a first excitation electrode disposed in the resonating section, a second excitation electrode disposed in the resonating section and overlapping the first excitation electrode via the resonating section, and first and second pad electrodes including portions disposed on the first principal plane, the first and second pad electrodes being electrically coupled to the first and second excitation electrodes.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: March 29, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Shinya Aoki, Byonhaku Yu, Atsushi Matsuo
  • Patent number: 11277111
    Abstract: A vibrator device includes a base; and a vibrator element including a quartz crystal vibrator element attached to the base via a first metal bump, in which the first metal bump is disposed on a straight line inclined within a range of +55° to +65° or ?65° to ?55° with respect to an X axis of the quartz crystal constituting the quartz crystal vibrator element in plan view seen from a direction in which the base and the quartz crystal vibrator element are arranged.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: March 15, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Atsushi Matsuo, Ryuta Nishizawa, Shinya Aoki, Shiro Murakami, Masashi Shimura
  • Patent number: 11264950
    Abstract: A vibration element includes: a quartz crystal substrate having a first vibration part and a second vibration part; a pair of first excitation electrodes formed at two main surfaces of the quartz crystal substrate, at the first vibration part; and a pair of second excitation electrodes formed in such a way as to sandwich the second vibration part in a direction of thickness of the quartz crystal substrate, at the second vibration part. At least one second excitation electrode of the pair of second excitation electrodes is formed at an inclined surface inclined to at least one of the two main surfaces.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: March 1, 2022
    Inventors: Ryuta Nishizawa, Atsushi Matsuo, Keiichi Yamaguchi, Byonhaku Yu
  • Patent number: 11196406
    Abstract: A vibrator device includes abase, a circuit element that is attached to the base, and a vibrator element that is arranged at an active surface of the circuit element and is attached to the circuit element, and the circuit element includes a terminal for frequency adjustment that is used for frequency adjustment of the vibrator element and is disposed in a region that does not overlap the vibrator element when viewed in a plan view of the active surface.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: December 7, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masashi Shimura, Atsushi Matsuo, Shinya Aoki, Shiro Murakami, Ryuta Nishizawa
  • Publication number: 20210367583
    Abstract: A vibration device includes a quartz substrate including a first vibration section, a second vibration section, and a third vibration section, a pair of first excitation electrodes formed at two principal surfaces of the quartz substrate, a pair of second excitation electrodes so formed as to sandwich the second vibration section in the thickness direction of the quartz substrate, and a pair of third excitation electrodes so formed as to sandwich the third vibration section in the thickness direction of the quartz substrate. At least one of the pair of second excitation electrodes is formed at a first inclining surface that inclines with respect to the two principal surfaces. At least one of the pair of third excitation electrodes is formed at a second inclining surface that inclines with respect to the two principal surfaces. The second inclining surface inclines with respect to the first inclining surface.
    Type: Application
    Filed: May 18, 2021
    Publication date: November 25, 2021
    Inventors: Ryuta NISHIZAWA, Atsushi MATSUO, Keiichi YAMAGUCHI, Taku MATSUNAGA
  • Patent number: 11183986
    Abstract: A resonator element includes a quartz crystal substrate including a first surface along an X axis which is an electrical axis, a second surface along the X axis, and a side surface, a first excitation electrode, a second excitation electrode, a first coupling electrode, a second coupling electrode, a first extraction electrode that couples the first excitation electrode and the first coupling electrode, and a second extraction electrode that couples the second excitation electrode and the second coupling electrode. In plan view, a virtual extension region is obtained by extending the first excitation electrode along the X axis.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: November 23, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Byonhaku Yu, Shinya Aoki, Atsushi Matsuo
  • Patent number: 11177429
    Abstract: A vibrator element includes a substrate that performs thickness-shear vibration, wherein an outer shape of the substrate in a plan view has a first side and a second side arranged in a first direction along a direction of the thickness-shear vibration and extending along a second direction crossing the first direction, a third side and a fourth side arranged in the second direction and extending in the first direction, a first connecting portion connecting the first side and the third side, and a second connecting portion connecting the first side and the fourth side, the first connecting portion and the second connecting portion are located inside of a region surrounded by the first side, the second side, the third side, the fourth side, and extension lines of these sides in the plan view, and the substrate has broken-off portions projecting from the first connecting portion and the second connecting portion.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: November 16, 2021
    Inventor: Atsushi Matsuo
  • Publication number: 20210336601
    Abstract: A method of manufacturing a vibrator element having a vibrating part which vibrates in a thickness-shear mode, and a thin-wall part which is coupled to the vibrating part, and which is thinner than the vibrating part includes a preparation step of preparing a quartz crystal substrate, a resist film formation step of forming a resist film in a vibrating part area of the quartz crystal substrate where the vibrating part is formed, an etching step of etching the quartz crystal substrate via the resist film, then ending the etching in a state in which the resist film remains in the vibrating part area to thereby form the vibrating part and the thin-wall part, and a resist film removal step of removing the resist film remaining.
    Type: Application
    Filed: April 16, 2021
    Publication date: October 28, 2021
    Inventors: Keiichi Yamaguchi, Atsushi Matsuo, Ryuta Nishizawa, Shigeru Shiraishi
  • Publication number: 20210336600
    Abstract: The vibrator device includes a vibrator element, a relay substrate, a base, an element-side bonding member for bonding the vibrator element and the relay substrate to each other, and a base-side bonding member for bonding the base and the relay substrate to each other. Further, the element-side bonding member has a first bonding member and s second bonding member arranged side by side along an A axis. Further, an X axis of a first quartz crystal substrate provided to the vibrator element is parallel to the A axis, and a second quartz crystal substrate provided to the relay substrate is a Z-cut quartz crystal substrate.
    Type: Application
    Filed: April 14, 2021
    Publication date: October 28, 2021
    Inventors: Ryuta Nishizawa, Shinya Aoki, Atsushi Matsuo
  • Publication number: 20210328566
    Abstract: A method of manufacturing a quartz crystal element includes the steps of preparing a quartz crystal wafer which has a predetermined cutting angle with respect to a crystal axis of a quartz crystal, and which has a first surface and a second surface having an obverse-reverse relationship, forming a first resist film on the first surface, the first resist film having a first tilted part tilted with respect to the first surface, and being dry-etched together with the quartz crystal, forming a first tilted surface tilted with respect to the first surface by dry-etching the quartz crystal wafer from the first surface side, forming a second resist film on the second surface, the second resist film having a second tilted part tilted with respect to the second surface, and being dry-etched together with the quartz crystal, and forming a second tilted surface tilted with respect to the second surface by dry-etching the quartz crystal wafer from the second surface side, wherein the quartz crystal element which is provi
    Type: Application
    Filed: April 13, 2021
    Publication date: October 21, 2021
    Inventors: Masaya Kanno, Shigeru Shiraishi, Atsushi Matsuo
  • Patent number: 11142563
    Abstract: The present inventors have successfully prepared an antibody Fc region dimer that has binding activity against each of an antigen and Fc?R, but does not bind to the antigen and the Fc?R at the same time, and a polypeptide comprising the Fc region dimer. The present invention enables the preparation of a multispecific binding polypeptide capable of avoiding an adverse reaction that may be caused by its binding to an antigen and Fc?R at the same time. Thus, the present invention provides a polypeptide suitable as a drug.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: October 12, 2021
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Tomoyuki Igawa, Naoka Hironiwa, Shojiro Kadono, Atsushi Matsuo, Taichi Kuramochi, Futa Mimoto
  • Publication number: 20210273609
    Abstract: A vibration element includes: a quartz crystal substrate having a first vibration part and a second vibration part; a pair of first excitation electrodes formed at two main surfaces of the quartz crystal substrate, at the first vibration part; and a pair of second excitation electrodes formed in such a way as to sandwich the second vibration part in a direction of thickness of the quartz crystal substrate, at the second vibration part. At least one second excitation electrode of the pair of second excitation electrodes is formed at an inclined surface inclined to at least one of the two main surfaces.
    Type: Application
    Filed: May 20, 2021
    Publication date: September 2, 2021
    Inventors: Ryuta NISHIZAWA, Atsushi MATSUO, Keiichi YAMAGUCHI, Byonhaku YU
  • Patent number: 11107852
    Abstract: A light receiving element includes a silicon substrate, a photodiode, an amplifier circuit adapted to amplify an output signal from the photodiode, and a light blocking section adapted to cover at least a part of the amplifier circuit to block light, and the photodiode, the amplifier circuit and the light blocking section are provided to the silicon substrate.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: August 31, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tsukasa Kosuda, Atsushi Matsuo
  • Patent number: 11075613
    Abstract: A vibrator device includes a base, a relay substrate that is supported by the base, and a vibrator element that is supported by the relay substrate. In addition, the vibrator element includes a vibration substrate formed of a piezoelectric single-crystalline body and an excitation electrode disposed on the vibration substrate. In addition, the relay substrate includes a substrate formed of the piezoelectric single-crystalline body. A crystal axis of the substrate and a crystal axis of the vibration substrate are shifted from each other.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: July 27, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Shiro Murakami, Atsushi Matsuo, Shinya Aoki, Masashi Shimura, Ryuta Nishizawa
  • Patent number: 11070169
    Abstract: A vibration element includes: a quartz crystal substrate having a first vibration part and a second vibration part; a pair of first excitation electrodes formed at two main surfaces of the quartz crystal substrate, at the first vibration part; and a pair of second excitation electrodes formed in such a way as to sandwich the second vibration part in a direction of thickness of the quartz crystal substrate, at the second vibration part. At least one second excitation electrode of the pair of second excitation electrodes is formed at an inclined surface inclined to at least one of the two main surfaces.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: July 20, 2021
    Inventors: Ryuta Nishizawa, Atsushi Matsuo, Keiichi Yamaguchi, Byonhaku Yu
  • Publication number: 20210216897
    Abstract: Systems and methods that address an optimized method to improve system and method for handling inequality constraints in mixed binary optimization problems on quantum computers and to solve local optima which significantly improves system performance. Embodiments employ an improved methodology that can optimize parameters, determine an optimal slack variable and optimize variational parameters for fixed slack variables. This procedure allows to move out of local minima, solve an optimization and improve th system performance by providing optimal results. These embodiments also extend to variational hybrid quantum/classical algorithms for gate-based quantum computers.
    Type: Application
    Filed: January 10, 2020
    Publication date: July 15, 2021
    Inventors: Stefan Woerner, Daniel Josef Egger, Jennifer Ranae Glick, Takashi Imamichi, Atsushi Matsuo
  • Patent number: 11010518
    Abstract: Swap insertion in mapping logical qubits on a quantum circuit is performed by obtaining an operation sequence including a plurality of operations to be executed on a quantum circuit. The quantum circuit including a plurality of physical qubits and a plurality of couplings. Finding a blocking set of operations including leading unresolved operation in the operation sequence. Calculating a first coupling score for each coupling of the plurality of couplings based on total reduction of shortest path lengths of a plurality of unresolved operations of the plurality of operations Selecting a coupling based on the first coupling score of each coupling. Updating the blocking set by removing any leading unresolved operations from the blocking set that can be performed after swapping a pair of logical qubits stored in a pair of physical qubits connected by the selected coupling.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: May 18, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Toshinari Itoko, Atsushi Matsuo
  • Patent number: 11009351
    Abstract: A vibrator device includes a base, a first relay substrate mounted on the base, a second relay substrate mounted on the first relay substrate, and a vibrator element mounted on the second relay substrate, in which the second relay substrate is disposed between the first relay substrate and the vibrator, and the second relay substrate includes a terminal that is electrically coupled to the vibrator element and is positioned in a region overlapping with the first relay substrate and not overlapping the vibrator element in a plan view. The vibrator device being configured to reduce a mounting stress applied to a vibrator element and to reduce frequency variation of the vibrator element due to the mounting stress, in a case of mounting on a package after adjusting a frequency of the vibrator element.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: May 18, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masashi Shimura, Atsushi Matsuo, Shinya Aoki, Shiro Murakami, Ryuta Nishizawa