Patents by Inventor Hisahiro Ito

Hisahiro Ito 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: 10784817
    Abstract: Provided is an oscillator including a resonator which includes a resonator element and a resonator element container accommodating the resonator element, an integrated circuit element which includes an inductor, and a nonconductive spacer member, in which the resonator and the integrated circuit element are stacked above each other, the resonator has a metal member, and the spacer member is provided between the resonator and the integrated circuit element.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: September 22, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Hisahiro Ito
  • Patent number: 10771013
    Abstract: An oscillator includes: an external terminal, a resonator, and an oscillation circuit that oscillates the resonator, in which the oscillation circuit includes an amplification circuit and a current source which supplies a current to the amplification circuit, in which the current is set according to a first control signal which is input from the external terminal and a drive level of the resonator is changed according to the setting of the current.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: September 8, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Hisahiro Ito
  • Patent number: 10742169
    Abstract: An oscillator includes a resonator and an integrated circuit element. The resonator includes a resonator element and a resonator element container accommodating the resonator element. The integrated circuit element includes an inductor. The resonator and the integrated circuit element are stacked on each other. The resonator includes a metal member, and the metal member does not overlap the inductor when viewed in a plan view.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: August 11, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hisahiro Ito, Tetsuya Otsuki, Shoichiro Kasahara
  • Patent number: 10734969
    Abstract: A vibrator device includes a circuit element, which has a first terminal and is a quadrangle in plan view, a vibrator, which is disposed on an active surface and is a quadrangle in plan view, a base, on which the circuit element is disposed and which has a second terminal, and a wire which connects the first terminal and the second terminal together. In plan view of the circuit element, at least one side of the vibrator is disposed along a direction where the one side intersects each of two adjacent sides of the circuit element, and the vibrator does not overlap the first terminal.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: August 4, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Hisahiro Ito
  • Patent number: 10673382
    Abstract: An oscillator includes an external terminal, a resonator, and an oscillation circuit that oscillates the resonator. The oscillation circuit includes an amplification circuit and a current source that supplies a current to the amplification circuit, and the current is variably set according to a control signal input from the external terminal.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: June 2, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Hisahiro Ito, Nobutaka Shiozaki, Seiichiro Tamura
  • Publication number: 20200136558
    Abstract: Provided is an oscillator including a resonator which includes a resonator element and a resonator element container accommodating the resonator element, an integrated circuit element which includes an inductor, and a nonconductive spacer member, in which the resonator and the integrated circuit element are stacked above each other, the resonator has a metal member, and the spacer member is provided between the resonator and the integrated circuit element.
    Type: Application
    Filed: October 28, 2019
    Publication date: April 30, 2020
    Inventor: Hisahiro ITO
  • Patent number: 10613576
    Abstract: An oscillator includes a circuit device, a clock output terminal, an error output terminal via which an error signal is outputted, and a clock input terminal, and the circuit device includes a clock signal generation circuit that generates a clock signal, an error signal generation circuit that generates the error signal, and a selection circuit that selects one of the clock signal and a signal inputted via the clock input terminal based on the error signal and outputs the selected signal via the clock output terminal.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: April 7, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Yuichi Toriumi, Hisahiro Ito
  • Patent number: 10615747
    Abstract: A vibrator device has a base that has a first terminal, a circuit element that is disposed on the base and has a second terminal, a vibrator that includes a vibrator element and a vibrator element package, and is positioned between the first terminal and the second terminal in plan view of the base, a wiring unit that is disposed on the vibrator, a first wire that electrically connects the first terminal and the wiring unit together, and a second wire that electrically connects the wiring unit and the second terminal together.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: April 7, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hisahiro Ito, Tetsuya Otsuki, Mitsuaki Sawada
  • Patent number: 10396747
    Abstract: A temperature compensated oscillation circuit includes an oscillation circuit that oscillates a resonator, a fractional N-PLL circuit that multiplies frequency of an oscillation signal which is output by the oscillation circuit, on the basis of a frequency division ratio which is input, a temperature measurement unit that measures temperature, and a storage unit that stores a temperature correction table for correcting frequency temperature characteristics of the oscillation signal, in which the frequency division ratio of the fractional N-PLL circuit is set on the basis of a measurement value obtained by the temperature measurement unit and the temperature correction table.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: August 27, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Hisahiro Ito, Yuichi Toriumi, Nobutaka Shiozaki
  • Publication number: 20190196531
    Abstract: An oscillator includes a circuit device, a clock output terminal, an error output terminal via which an error signal is outputted, and a clock input terminal, and the circuit device includes a clock signal generation circuit that generates a clock signal, an error signal generation circuit that generates the error signal, and a selection circuit that selects one of the clock signal and a signal inputted via the clock input terminal based on the error signal and outputs the selected signal via the clock output terminal.
    Type: Application
    Filed: December 19, 2018
    Publication date: June 27, 2019
    Inventors: Yuichi TORIUMI, Hisahiro Ito
  • Publication number: 20190165732
    Abstract: An oscillator includes a resonator and an integrated circuit element. The resonator includes a resonator element and a resonator element container accommodating the resonator element. The integrated circuit element includes an inductor. The resonator and the integrated circuit element are stacked on each other. The resonator includes a metal member, and the metal member does not overlap the inductor when viewed in a plan view.
    Type: Application
    Filed: November 26, 2018
    Publication date: May 30, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hisahiro ITO, Tetsuya OTSUKI, Shoichiro KASAHARA
  • Patent number: 10098803
    Abstract: A main body frame 40 of a walking assist device 1, which is to be fixed to the waist of a user, has first frames 41 to be fixed to the waist of the user, second frames 42, and connection mechanisms 43, which connect the first frames 41 and the second frames 42 such that the relative positions of the second frames 42 with respect to the first frames 41 change according to the motions of the legs of the user.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: October 16, 2018
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hisahiro Ito, Kazushi Hamaya, Tatsuya Noda
  • Publication number: 20180269850
    Abstract: A vibrator device includes a circuit element, which has a first terminal and is a quadrangle in plan view, a vibrator, which is disposed on an active surface and is a quadrangle in plan view, a base, on which the circuit element is disposed and which has a second terminal, and a wire which connects the first terminal and the second terminal together. In plan view of the circuit element, at least one side of the vibrator is disposed along a direction where the one side intersects each of two adjacent sides of the circuit element, and the vibrator does not overlap the first terminal.
    Type: Application
    Filed: March 7, 2018
    Publication date: September 20, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Hisahiro ITO
  • Publication number: 20180265349
    Abstract: A vibrator device includes a base, a vibrator that includes a vibrator element and a vibrator element package, which accommodates the vibrator element and has a first terminal on a surface on a base side, a circuit element that is disposed between the base and the vibrator and has a first connection pad on a surface on a vibrator side, and a conductive connecting member that is disposed between the circuit element and the vibrator, bonds the circuit element and the vibrator together, and electrically connects the first connection pad and the first terminal together.
    Type: Application
    Filed: March 7, 2018
    Publication date: September 20, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Hisahiro ITO
  • Publication number: 20180269834
    Abstract: A vibrator device has a base that has a first terminal, a circuit element that is disposed on the base and has a second terminal, a vibrator that includes a vibrator element and a vibrator element package, and is positioned between the first terminal and the second terminal in plan view of the base, a wiring unit that is disposed on the vibrator, a first wire that electrically connects the first terminal and the wiring unit together, and a second wire that electrically connects the wiring unit and the second terminal together.
    Type: Application
    Filed: March 7, 2018
    Publication date: September 20, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hisahiro ITO, Tetsuya OTSUKI, Mitsuaki SAWADA
  • Publication number: 20180248517
    Abstract: An oscillator includes: an external terminal, a resonator, and an oscillation circuit that oscillates the resonator, in which the oscillation circuit includes an amplification circuit and a current source which supplies a current to the amplification circuit, in which the current is set according to a first control signal which is input from the external terminal and a drive level of the resonator is changed according to the setting of the current.
    Type: Application
    Filed: February 22, 2018
    Publication date: August 30, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Hisahiro ITO
  • Patent number: 9984991
    Abstract: In order to reduce crosstalk between analog and digital signals, a circuit device includes a vibrator element, a semiconductor device, and a package. In the semiconductor device, an analog pad is provided along a first side facing in a first direction when the semiconductor device is seen in plan view. In addition, a digital pad is provided along aside facing in a second direction opposite to the first direction, that is, a second side facing the first side. In the package, an analog terminal which is connected to the analog pad is provided on a first side of the package facing in the first direction. In addition, a digital terminal which is connected to the digital pad is provided on a second side of the package facing in the second direction.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: May 29, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Hisahiro Ito, Shoichiro Kasahara
  • Publication number: 20170353171
    Abstract: A temperature compensated oscillation circuit includes an oscillation circuit that oscillates a resonator, a fractional N-PLL circuit that multiplies frequency of an oscillation signal which is output by the oscillation circuit, on the basis of a frequency division ratio which is input, a temperature measurement unit that measures temperature, and a storage unit that stores a temperature correction table for correcting frequency temperature characteristics of the oscillation signal, in which the frequency division ratio of the fractional N-PLL circuit is set on the basis of a measurement value obtained by the temperature measurement unit and the temperature correction table.
    Type: Application
    Filed: June 5, 2017
    Publication date: December 7, 2017
    Inventors: Hisahiro ITO, Yuichi TORIUMI, Nobutaka SHIOZAKI
  • Publication number: 20170346442
    Abstract: An oscillator includes an external terminal, a resonator, and an oscillation circuit that oscillates the resonator. The oscillation circuit includes an amplification circuit and a current source that supplies a current to the amplification circuit, and the current is variably set according to a control signal input from the external terminal.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 30, 2017
    Inventors: Hisahiro ITO, Nobutaka SHIOZAKI, Seiichiro TAMURA
  • Patent number: D853985
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: July 16, 2019
    Assignee: SONY CORPORATION
    Inventors: Tomohiro Ito, Takeshi Inoue, Daisuke Matsuo, Hisahiro Tanaka