Patents by Inventor Seiichiro Ogura

Seiichiro Ogura 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: 11307033
    Abstract: Provided is a vibrator device including a vibrator structure body. When the A axis, the B axis, and the C axis are three axes orthogonal to each other, the vibrator structure body includes a vibrator element and a support substrate that is aligned with the vibrator element along the C axis. The vibrator element includes vibrating arms configured to flexurally vibrate along a plane parallel to the A axis and the B axis and along the A axis. The support substrate includes a base that supports the vibrator element, a support that supports the base, and a beam that couples the base and the support. A relationship f0<f1 is satisfied in which f0 is a resonance frequency of a vibration of the vibrator structure body along the B axis and f1 is a drive frequency of the vibrator element.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: April 19, 2022
    Inventors: Ryuta Nishizawa, Seiichiro Ogura, Keiichi Yamaguchi
  • Patent number: 11293755
    Abstract: A vibrator device includes a vibrator element, a base, and a support configured to support the vibrator element with respect to the base. The support includes a frame shaped like a frame, a base mount disposed outside the frame, and fixed to the base, an element holder which is disposed inside the frame, and on which the vibrator element is mounted, a pair of first beams which extend along a first direction from the element holder, and couple the element holder and the frame to each other, and a pair of second beams which extend along a second direction from the frame, and couple the frame and the base mount to each other, and W12/L1<30, in which a length in the first direction of the first beam is L1 (?m), and a width in a direction perpendicular to the first direction of the first beam is W1 (?m).
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: April 5, 2022
    Inventors: Seiichiro Ogura, Keiichi Yamaguchi, Ryuta Nishizawa
  • Patent number: 11287260
    Abstract: A vibrator device includes: a vibrator element that includes a vibrator substrate including a vibrating arm, and an electrode arranged in the vibrator substrate; a base; a support substrate that includes a base mount fixed to the base, an element support that supports the vibrator element, and a beam that connects between the base mount and the element support, and supports the vibrator element relative to the base; a wiring pattern that is arranged in the support substrate, and is electrically connected to the vibrator element; and a buffer member that is arranged on the wiring pattern of the support substrate, and whose hardness is lower than that of the support substrate. Also the buffer member is arranged on a face of the support substrate, that opposes the vibrator element, and overlaps the vibrating arm in a plan view of the support substrate.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: March 29, 2022
    Inventors: Masahiro Oshio, Keiichi Yamaguchi, Seiichiro Ogura, Ryuta Nishizawa
  • Patent number: 11239407
    Abstract: A frequency adjustment method of a vibrator element includes preparing a vibrator element that has a vibrating arm, a first weight placed on one principal surface of the vibrating arm, and a second weight placed on the other principal surface of the vibrating arm, in which the first weight has a non-overlapping region which does not overlap the second weight in a plan view in a normal direction of the principal surface, preparing a substrate including a wiring portion, and fixing the vibrator element to the substrate by causing the other principal surface side of the vibrator element to face the substrate side, and irradiating the non-overlapping region of the first weight with an energy ray from one principal surface side, removing a portion of the non-overlapping region of the first weight, and adjusting a resonance frequency of the vibrating arm.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: February 1, 2022
    Inventors: Keiichi Yamaguchi, Seiichiro Ogura, Masahiro Oshio, Ryuta Nishizawa
  • Publication number: 20210408366
    Abstract: A vibrator includes: a base portion; a vibrating arm including an arm portion which extends from the base portion, and a weight portion which is located on a tip end side of the arm portion and which has a first main surface and a second main surface that are in a front-back relationship; and a weight film disposed at the first main surface of the weight portion. The first main surface includes a planar surface and an inclined surface inclined with respect to the planar surface. A method for manufacturing a vibrator includes: a preparation step of preparing the above-described vibrator; and a removing step of removing a part of the weight film by emitting an energy ray to the weight film. In the removing step, the weight film disposed at the planar surface is removed and the weight film disposed at the inclined surface is not removed by emitting the energy ray to the weight film from a normal direction of the planar surface.
    Type: Application
    Filed: June 29, 2021
    Publication date: December 30, 2021
    Inventor: Seiichiro OGURA
  • Publication number: 20210408365
    Abstract: A vibrator includes: a base portion; a vibrating arm including an arm portion which extends from the base portion, and a weight portion which is located on a tip end side of the arm portion and which has a first main surface and a second main surface that are in a front-back relationship; and a weight film disposed at the first main surface of the weight portion. The first main surface includes a first planar surface, a second planar surface which is located closer to the second main surface than is the first planar surface and which is parallel to the first planar surface, and an inclined surface which couples the first planar surface and the second planar surface and which forms an angle of 100° or less with the first planar surface. A method for manufacturing a vibrator includes: a preparation step of preparing the above-described vibrator; and a removing step of removing a part of the weight film by emitting an energy ray to the weight film from a normal direction of the first planar surface.
    Type: Application
    Filed: June 29, 2021
    Publication date: December 30, 2021
    Inventor: Seiichiro OGURA
  • Publication number: 20210313959
    Abstract: A vibration element includes a base and a vibrating arm extending from the base. The vibrating arm includes an arm positioned between the base and a weight. A weight film is disposed on the weight. The weight has a first principal surface and a second principal surface in a front and back relationship with respect to a center plane of the arm. A center of gravity of the weight is located between the first principal surface and the center plane of the arm. A center of gravity of the weight film is located between the second principal surface and the center plane of the arm.
    Type: Application
    Filed: April 29, 2021
    Publication date: October 7, 2021
    Inventors: Seiichiro OGURA, Keiichi YAMAGUCHI, Masahiro OSHIO, Takashi YAMAZAKI
  • Patent number: 11085765
    Abstract: A frequency adjustment method of a vibration element includes adjusting a resonance frequency of the vibration element by irradiating the vibration element, which includes a vibrating arm having a first principal surface and a second principal surface that are in a front and back relationship with each other with an energy ray, to remove a part of the vibrating arm on the first principal surface, and in which an activation amount by the energy ray on the second principal surface of the vibrating arm is smaller than an activation amount by the energy ray on the first principal surface of the vibrating arm.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: August 10, 2021
    Inventors: Shogo Sasaki, Masashi Shimura, Keiichi Yamaguchi, Masahiro Oshio, Ryuta Nishizawa, Seiichiro Ogura
  • Publication number: 20210231438
    Abstract: A vibrator device includes a vibrating body having a first surface, a package having a second surface opposed to the first surface of the vibrating body, a circuit board provided to the package so as to be opposed to the first surface of the vibrating body, a plurality of coupling electrodes provided to the first surface of the vibrating body, a first coupling line provided to the second surface of the package, a second coupling line provided to the circuit board, and a bonding material electrically coupling the coupling electrode and the first coupling line to each other, wherein the vibrating body has a protrusion protruding toward the package farther than the coupling electrode at the first surface side, and the protrusion has contact with the second surface of the package.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 29, 2021
    Inventors: Seiichiro Ogura, Keiichi Yamaguchi, Ryuta Nishizawa
  • Publication number: 20210226606
    Abstract: A vibrator device includes a vibrating body having obverse and reverse principal surfaces and a side surface connecting the obverse and reverse principal surfaces to each other, a package configured to house the vibrating body, and a bonding material configured to fix the vibrating body to the package, wherein the vibrating body has a coupling part including a recess recessed from the side surface toward a center of the principal surfaces, and a protrusion protruding from a side surface of the recess, the protrusion is one of breaking-off parts with which a plurality of the vibrating bodies is broken off from a wafer to which the plurality of the vibrating bodies is coupled, and the bonding material has contact with a side surface of the protrusion in the recess.
    Type: Application
    Filed: January 19, 2021
    Publication date: July 22, 2021
    Inventors: Seiichiro Ogura, Keiichi Yamaguchi, Ryuta Nishizawa
  • Patent number: 11025222
    Abstract: A vibration element includes a base and a vibrating arm extending from the base. The vibrating arm includes an arm positioned between the base and a weight. A weight film is disposed on the weight. The weight has a first principal surface and a second principal surface in a front and back relationship with respect to a center plane of the arm. A center of gravity of the weight is located between the first principal surface and the center plane of the arm. A center of gravity of the weight film is located between the second principal surface and the center plane of the arm.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: June 1, 2021
    Inventors: Seiichiro Ogura, Keiichi Yamaguchi, Masahiro Oshio, Takashi Yamazaki
  • Publication number: 20210135652
    Abstract: A vibrator device has the vibrator element, a support substrate supporting the vibrator element, and a plurality of interconnections disposed on the support substrate. The support substrate includes an element mounting base, a supporting base, a frame located between the element mounting base and the supporting base, inner beams for coupling the element mounting base and the frame to each other, and outer beams for coupling the frame and the supporting base to each other. The plurality of interconnections include a drive signal interconnection and a detection signal interconnection laid around to the element mounting base and the supporting base, and the drive signal interconnection and the detection signal interconnection are laid around to the element mounting base and the frame through the respective inner beams different from each other, and are laid around to the frame and the supporting base through the respective outer beams different from each other.
    Type: Application
    Filed: October 27, 2020
    Publication date: May 6, 2021
    Inventor: Seiichiro Ogura
  • Publication number: 20210063155
    Abstract: A vibrator device includes a vibrator element, a base, and a support configured to support the vibrator element with respect to the base. The support includes a frame shaped like a frame, a base mount disposed outside the frame, and fixed to the base, an element holder which is disposed inside the frame, and on which the vibrator element is mounted, a pair of first beams which extend along a first direction from the element holder, and couple the element holder and the frame to each other, and a pair of second beams which extend along a second direction from the frame, and couple the frame and the base mount to each other, and W12/L1<30, in which a length in the first direction of the first beam is L1 (?m), and a width in a direction perpendicular to the first direction of the first beam is W1 (?m).
    Type: Application
    Filed: August 28, 2020
    Publication date: March 4, 2021
    Inventors: Seiichiro OGURA, Keiichi YAMAGUCHI, Ryuta NISHIZAWA
  • Publication number: 20210063156
    Abstract: A vibrator device includes: a vibrator element that includes a vibrator substrate including a vibrating arm, and an electrode arranged in the vibrator substrate; a base; a support substrate that includes a base mount fixed to the base, an element support that supports the vibrator element, and a beam that connects between the base mount and the element support, and supports the vibrator element relative to the base; a wiring pattern that is arranged in the support substrate, and is electrically connected to the vibrator element; and a buffer member that is arranged on the wiring pattern of the support substrate, and whose hardness is lower than that of the support substrate. Also the buffer member is arranged on a face of the support substrate, that opposes the vibrator element, and overlaps the vibrating arm in a plan view of the support substrate.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 4, 2021
    Inventors: Masahiro OSHIO, Keiichi YAMAGUCHI, Seiichiro OGURA, Ryuta NISHIZAWA
  • Publication number: 20210033398
    Abstract: A vibrator device includes a vibrator element, and a support substrate disposed so as to be opposed to the vibrator element. The support substrate includes a base configured to support the vibrator element, a support configured to support the base, a plurality of beams configured to couple the base and the support to each other, and a drive signal interconnection, a drive constant-potential interconnection, a detection signal interconnection, and a detection constant-potential interconnection each laid around the base and the support passing the beams, and in predetermined one of the beams, at least one of the drive constant-potential interconnection and the detection constant-potential interconnection is disposed on a surface on the vibrator element side, and the detection signal interconnection is disposed on a surface on the opposite side.
    Type: Application
    Filed: July 28, 2020
    Publication date: February 4, 2021
    Inventors: Ryuta NISHIZAWA, Keiichi YAMAGUCHI, Seiichiro OGURA
  • Publication number: 20210033395
    Abstract: A vibrator device includes a vibrator element, and a support substrate configured to support the vibrator element. The vibrator element includes a drive arm provided with a drive signal electrode and a drive constant-potential electrode, and a detection arm provided with a detection signal electrode and a detection constant-potential electrode. The support substrate includes a base, and a drive signal interconnection electrically coupled to the drive signal electrode, a drive constant-potential interconnection electrically coupled to the drive constant-potential electrode, and a detection signal interconnection electrically coupled to the detection signal electrode all provided to the base, and the drive arm includes a first surface located at the support substrate side, and a second surface located at an opposite side to the first surface. Further, the drive constant-potential electrode is disposed on the first surface, and the drive signal electrode is disposed on the second surface.
    Type: Application
    Filed: July 29, 2020
    Publication date: February 4, 2021
    Inventors: Seiichiro OGURA, Keiichi YAMAGUCHI, Ryuta NISHIZAWA
  • Publication number: 20200309526
    Abstract: Provided is a vibrator device including a vibrator structure body. When the A axis, the B axis, and the C axis are three axes orthogonal to each other, the vibrator structure body includes a vibrator element and a support substrate that is aligned with the vibrator element along the C axis. The vibrator element includes vibrating arms configured to flexurally vibrate along a plane parallel to the A axis and the B axis and along the A axis. The support substrate includes a base that supports the vibrator element, a support that supports the base, and a beam that couples the base and the support. A relationship f0<f1 is satisfied in which f0 is a resonance frequency of a vibration of the vibrator structure body along the B axis and f1 is a drive frequency of the vibrator element.
    Type: Application
    Filed: March 24, 2020
    Publication date: October 1, 2020
    Inventors: Ryuta Nishizawa, Seiichiro Ogura, Keiichi Yamaguchi
  • Publication number: 20200284815
    Abstract: The vibrator device includes: a base; a circuit element disposed on the base; a vibrating element disposed to at least partially overlap the circuit element in a plan view; and a support substrate that is disposed between the circuit element and the vibrating element and supports the vibrating element. In addition, the vibrating element has a frequency adjustment portion that performs frequency adjustment by removing at least a part of the vibrating element, and the support substrate includes a base portion that supports the vibrating element, a support portion that supports the base portion, a beam portion that couples the base portion the support portion, and a shielding portion that is connected to the beam portion, overlaps the frequency adjustment portion in a plan view, and has light shielding properties.
    Type: Application
    Filed: March 6, 2020
    Publication date: September 10, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Seiichiro OGURA, Ryuta NISHIZAWA, Keiichi YAMAGUCHI
  • Patent number: 10520312
    Abstract: A vibration element includes a detection signal electrode provided in a detection vibrating arm, a detection signal terminal which is provided in a support portion and electrically connected to the detection signal electrode, and a detection ground terminal provided in the support portion, and the detection ground terminal is disposed between a first connection portion which is a connection portion with a beam portion of the support portion and a second connection portion which is a connection portion with a beam portion, and is provided to extend to the outside of the first connection portion, and the detection signal terminal is provided between the detection ground terminal and an end portion of the support portion.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: December 31, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Seiichiro Ogura, Ryuta Nishizawa
  • Publication number: 20190301869
    Abstract: A frequency adjustment method of a vibration element includes adjusting a resonance frequency of the vibration element by irradiating the vibration element, which includes a vibrating arm having a first principal surface and a second principal surface that are in a front and back relationship with each other with an energy ray, to remove a part of the vibrating arm on the first principal surface, and in which an activation amount by the energy ray on the second principal surface of the vibrating arm is smaller than an activation amount by the energy ray on the first principal surface of the vibrating arm.
    Type: Application
    Filed: March 28, 2019
    Publication date: October 3, 2019
    Inventors: Shogo SASAKI, Masashi SHIMURA, Keiichi YAMAGUCHI, Masahiro OSHIO, Ryuta NISHIZAWA, Seiichiro OGURA