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).

  • Publication number: 20190234735
    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: Application
    Filed: April 9, 2019
    Publication date: August 1, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Seiichiro OGURA, Ryuta NISHIZAWA
  • Publication number: 20190229706
    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: January 22, 2019
    Publication date: July 25, 2019
    Inventors: Seiichiro OGURA, Keiichi YAMAGUCHI, Masahiro OSHIO, Takashi YAMAZAKI
  • Patent number: 10295346
    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: October 19, 2015
    Date of Patent: May 21, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Seiichiro Ogura, Ryuta Nishizawa
  • Publication number: 20190006575
    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: Application
    Filed: June 29, 2018
    Publication date: January 3, 2019
    Inventors: Keiichi YAMAGUCHI, Seiichiro OGURA, Masahiro OSHIO, Ryuta NISHIZAWA
  • Patent number: 9631926
    Abstract: A vibration element includes a vibrating portion, a support portion that supports the vibrating portion, and a suspension arm that couples the vibrating portion to the support portion. In addition, the suspension arm includes a meandering portion extending out the support portion and an inclination portion that couples the meandering portion to the vibrating portion.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: April 25, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Seiichiro Ogura, Keiichi Yamaguchi, Ryuta Nishizawa, Takayuki Kikuchi
  • Patent number: 9546869
    Abstract: A vibrator element includes a pair of first and second drive vibrating arms that extend in opposite directions from a base portion; a first weight that is spaced from a tip of at least one of the first and second drive vibrating arms toward the base portion and is provided in a first region of the at least one of the drive vibrating arms; and a second weight that is provided in a second region that is a region between a tip of the first weight and the tip of the at least one of the drive vibrating arms. When an area of the first region is represented as A1, a mass of the first weight is represented as B1, an area of the second region is represented as A2, and a mass of the second weight is represented as B2, B1/A1>B2/A2 is established.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: January 17, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Keiichi Yamaguchi, Seiichiro Ogura, Takayuki Kikuchi, Ryuta Nishizawa, Seiji Osawa
  • Publication number: 20160223328
    Abstract: A vibrator element includes a pair of first and second drive vibrating arms that extend in opposite directions from a base portion; a first weight that is spaced from a tip of at least one of the first and second drive vibrating arms toward the base portion and is provided in a first region of the at least one of the drive vibrating arms; and a second weight that is provided in a second region that is a region between a tip of the first weight and the tip of the at least one of the drive vibrating arms. When an area of the first region is represented as A1, a mass of the first weight is represented as B1, an area of the second region is represented as A2, and a mass of the second weight is represented as B2, B1/A1>B2/A2 is established.
    Type: Application
    Filed: April 13, 2016
    Publication date: August 4, 2016
    Inventors: Keiichi YAMAGUCHI, Seiichiro OGURA, Takayuki KIKUCHI, Ryuta NISHIZAWA, Seiji OSAWA
  • Patent number: 9379307
    Abstract: A gyro element as a vibrator element fulfills the relationship: |fd?fy1|>|fd?fy2|, where fd is a drive vibrational frequency of first through fourth drive vibration arms, fy1 is a y1-mode vibrational frequency of a y1 mode, in which a base section and the first through fourth drive vibration arms vibrate in the same direction along a first direction (a y-axis direction) in which the first drive vibration arm extends, and fy2 is a y2-mode vibrational frequency of a y2 mode in which the base section vibrates along the first direction and the first through fourth drive vibration arms vibrate along the first direction in an opposite direction to a direction in which the base section vibrates.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: June 28, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Seiichiro Ogura, Takayuki Kikuchi, Keiichi Yamaguchi
  • Patent number: 9362483
    Abstract: A vibration gyro device has a base part and a pair of drive vibrating arms and a pair of detection vibrating arms respectively extended from both ends in a Y-axis direction of the base part. Further, adjustment vibrating arms extended from respective ends of connecting parts respectively extended from both ends in an X-axis direction of the base part in parallel to the drive vibrating arms are provided. At the end sides of the respective adjustment vibrating arms, spindle parts as wider parts are provided. On principal surfaces of the respective adjustment vibrating arms, adjustment electrodes as membranes for adjustment of leakage output of the vibration gyro device are provided.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: June 7, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Seiichiro Ogura, Takayuki Kikuchi
  • Patent number: 9341643
    Abstract: A vibrator element includes a pair of first and second drive vibrating arms that extend in opposite directions from a base portion; a first weight that is spaced from a tip of at least one of the first and second drive vibrating arms toward the base portion and is provided in a first region of the at least one of the drive vibrating arms; and a second weight that is provided in a second region that is a region between a tip of the first weight and the tip of the at least one of the drive vibrating arms. When an area of the first region is represented as A1, a mass of the first weight is represented as B1, an area of the second region is represented as A2, and a mass of the second weight is represented as B2, B1/A1>B2/A2 is established.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: May 17, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Keiichi Yamaguchi, Seiichiro Ogura, Takayuki Kikuchi, Ryuta Nishizawa, Seiji Osawa
  • Publication number: 20160116285
    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: Application
    Filed: October 19, 2015
    Publication date: April 28, 2016
    Inventors: Seiichiro Ogura, Ryuta Nishizawa
  • Publication number: 20150221860
    Abstract: A vibration gyro device has a base part and a pair of drive vibrating arms and a pair of detection vibrating arms respectively extended from both ends in a Y-axis direction of the base part. Further, adjustment vibrating arms extended from respective ends of connecting parts respectively extended from both ends in an X-axis direction of the base part in parallel to the drive vibrating arms are provided. At the end sides of the respective adjustment vibrating arms, spindle parts as wider parts are provided. On principal surfaces of the respective adjustment vibrating arms, adjustment electrodes as membranes for adjustment of leakage output of the vibration gyro device are provided.
    Type: Application
    Filed: April 15, 2015
    Publication date: August 6, 2015
    Inventors: Seiichiro OGURA, Takayuki KIKUCHI
  • Publication number: 20150222244
    Abstract: A vibration gyro device has a base part and a pair of drive vibrating arms and a pair of detection vibrating arms respectively extended from both ends in a Y-axis direction of the base part. Further, adjustment vibrating arms extended from respective ends of connecting parts respectively extended from both ends in an X-axis direction of the base part in parallel to the drive vibrating arms are provided. At the end sides of the respective adjustment vibrating arms, spindle parts as wider parts are provided. On principal surfaces of the respective adjustment vibrating arms, adjustment electrodes as membranes for adjustment of leakage output of the vibration gyro device are provided.
    Type: Application
    Filed: April 15, 2015
    Publication date: August 6, 2015
    Inventors: Seiichiro OGURA, Takayuki KIKUCHI
  • Patent number: 9083307
    Abstract: A flexural vibrator element has a vibrator arm extending from a base section and having a rectangular cross-sectional shape, the vibrator arm having first and second step sections composed of step surfaces intersecting respectively with a left side surface and a right side surface, and step side surfaces intersecting respectively with an upper surface and a lower surface, between the lower surface, the upper surface and the left side surface, the right side surface, and first and fourth detection electrodes on the left and right side surfaces and second and third detection electrodes on the step side surfaces are respectively separated in a thickness direction of the vibrator arm. The first through fourth detection electrodes are patterned with accuracy by exposure from the upper surface and the lower surface using a common exposure device by existing photo etching.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: July 14, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Ryuta Nishizawa, Seiichiro Ogura, Takayuki Kikuchi
  • Publication number: 20150162522
    Abstract: A vibration element includes a vibrating portion, a support portion that supports the vibrating portion, and a suspension arm that couples the vibrating portion to the support portion. In addition, the suspension arm includes a meandering portion extending out the support portion and an inclination portion that couples the meandering portion to the vibrating portion.
    Type: Application
    Filed: December 4, 2014
    Publication date: June 11, 2015
    Inventors: Seiichiro OGURA, Keiichi YAMAGUCHI, Ryuta NISHIZAWA, Takayuki KIKUCHI
  • Patent number: 9030082
    Abstract: A vibration gyro device has a base part and a pair of drive vibrating arms and a pair of detection vibrating arms respectively extended from both ends in a Y-axis direction of the base part. Further, adjustment vibrating arms extended from respective ends of connecting parts respectively extended from both ends in an X-axis direction of the base part in parallel to the drive vibrating arms are provided. At the end sides of the respective adjustment vibrating arms, spindle parts as wider parts are provided. On principal surfaces of the respective adjustment vibrating arms, adjustment electrodes as membranes for adjustment of leakage output of the vibration gyro device are provided.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: May 12, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Seiichiro Ogura, Takayuki Kikuchi
  • Patent number: 9013093
    Abstract: A vibrating reed includes a vibrating body (a base portion, a vibrating arm, and a detection arm) and a support portion that supports the vibrating body via a plate-like coupling portion. In both principal surfaces of the coupling portion, grooves (a first groove and a second groove) are disposed. The first groove arranged in one of the principal surfaces of the coupling portion and the second groove arranged in the other principal surface are arranged at positions different from each other in plan view.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: April 21, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Keiichi Yamaguchi, Seiji Osawa, Seiichiro Ogura, Takayuki Kikuchi
  • Publication number: 20140077664
    Abstract: A gyro element as a vibrator element fulfills the relationship: |fd?fy1|>|fd?fy2|, where fd is a drive vibrational frequency of first through fourth drive vibration arms, fy1 is a y1-mode vibrational frequency of a y1 mode, in which a base section and the first through fourth drive vibration arms vibrate in the same direction along a first direction (a y-axis direction) in which the first drive vibration arm extends, and fy2 is a y2-mode vibrational frequency of a y2 mode in which the base section vibrates along the first direction and the first through fourth drive vibration arms vibrate along the first direction in an opposite direction to a direction in which the base section vibrates.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 20, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Seiichiro Ogura, Takayuki Kikuchi, Keiichi Yamaguchi
  • Publication number: 20140020503
    Abstract: A vibrator element includes a pair of first and second drive vibrating arms that extend in opposite directions from a base portion; a first weight that is spaced from a tip of at least one of the first and second drive vibrating arms toward the base portion and is provided in a first region of the at least one of the drive vibrating arms; and a second weight that is provided in a second region that is a region between a tip of the first weight and the tip of the at least one of the drive vibrating arms. When an area of the first region is represented as A1, a mass of the first weight is represented as B1, an area of the second region is represented as A2, and a mass of the second weight is represented as B2, B1/A1>B2/A2 is established.
    Type: Application
    Filed: July 22, 2013
    Publication date: January 23, 2014
    Inventors: Keiichi YAMAGUCHI, Seiichiro OGURA, Takayuki KIKUCHI, Ryuta NISHIZAWA, Seiji OSAWA
  • Publication number: 20130320812
    Abstract: A vibrating reed includes a vibrating body (a base portion, a vibrating arm, and a detection arm) and a support portion that supports the vibrating body via a plate-like coupling portion. In both principal surfaces of the coupling portion, grooves (a first groove and a second groove) are disposed. The first groove arranged in one of the principal surfaces of the coupling portion and the second groove arranged in the other principal surface are arranged at positions different from each other in plan view.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 5, 2013
    Inventors: Keiichi YAMAGUCHI, Seiji OSAWA, Seiichiro OGURA, Takayuki KIKUCHI