Patents by Inventor Masayuki Kikushima

Masayuki Kikushima 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: 20200067454
    Abstract: A vibrator includes a first substrate, a first lead frame provided in the first substrate, a package supported by the first lead frame, and a vibrating element housed in the package, in which the first lead frame has a first part coupled to the first substrate, a second part coupled to the package, and a third part coupling the first part with the second part, and including a curved portion, the first substrate has a first side and a second side opposite to each other in plan view, and a plurality of the first lead frames are provided at a side of the first side along the first side and provided at a side of the second side along the second side.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 27, 2020
    Inventors: Masayuki KIKUSHIMA, Manabu KONDO
  • Patent number: 9590585
    Abstract: A resonation device includes substrate, a resonation element that is attached to first main surface of substrate at first and second attachment portion, and heat-generating unit that is disposed on second main surface which is side opposite to first main surface so as to overlap with resonation element in a planar view. When an angle formed by line which connects center of resonation element and center of first attachment portion and virtual line which connects center of heat-generating unit and center of resonation element in a planar view is ?1 and an angle formed by a line which connects center of resonation element and center of second attachment portion and virtual line which connects center of heat-generating unit and center of resonation element in a planar view is ?2, conditions 0°<?1<90°, 0°<?2<90°, and 0°<|?1??2|<10° are satisfied.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: March 7, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Masayuki Kikushima
  • Publication number: 20160204759
    Abstract: A resonation device includes substrate, a resonation element that is attached to first main surface of substrate at first and second attachment portion, and heat-generating unit that is disposed on second main surface which is side opposite to first main surface so as to overlap with resonation element in a planar view. When an angle formed by line which connects center of resonation element and center of first attachment portion and virtual line which connects center of heat-generating unit and center of resonation element in a planar view is ?1 and an angle formed by a line which connects center of resonation element and center of second attachment portion and virtual line which connects center of heat-generating unit and center of resonation element in a planar view is ?2, conditions 0°<?1<90°, 0°<?2<90°, and 0°<|?1??2|<10° are satisfied.
    Type: Application
    Filed: January 7, 2016
    Publication date: July 14, 2016
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Masayuki KIKUSHIMA
  • Publication number: 20160197594
    Abstract: A quartz crystal resonator includes a quartz crystal resonator element, a thermistor, and a package base having a first main surface and a second main surface which are respectively a front surface and a back surface. The quartz crystal resonator element is mounted on the first mounting surface on the first main surface side of the package base. The thermistor is mounted on the second mounting surface on the second main surface side of the package base. The package base has an overlapping section in which at least a portion of the first mounting surface overlaps at least a portion of the second mounting surface in a planar view. A thickness of the overlapping section is equal to or greater than 0.04 mm and less than 0.10 mm.
    Type: Application
    Filed: January 5, 2016
    Publication date: July 7, 2016
    Inventors: Masanori HANZAWA, Toshiaki SATO, Masayuki KIKUSHIMA
  • Patent number: 9337801
    Abstract: A vibration element includes a piezoelectric substrate including a vibrating section and a thick section having a thickness larger than that of the vibrating section. The thick section includes a first thick section provided along a first outer edge of the vibrating section, a second thick section provided along a second outer edge thereof, and a third thick section provided along a third outer edge thereof. When a maximum size of the second thick section in the vibration direction is Lmax and a minimum size thereof is Lmin, an average size expressed by (Lmax+Lmin)/2 is 100 ?m or smaller.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: May 10, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Masayuki Kikushima, Masako Tanaka, Naohisa Obata, Yukihiro Unno
  • Patent number: 9264015
    Abstract: A quartz crystal resonator includes a quartz crystal resonator element, a thermistor, a second layer including a first principal surface and a second principal surface, and a third layer having a through hole. internal terminals are provided on the first principal surface side, and electrode pads are provided in a portion exposed from the through hole on the second principal surface side. The quartz crystal resonator element is attached to the internal terminals, and the thermistor is attached to the electrode pads. Two mounting terminals are provided on a first diagonal line on the third principal surface side of the third layer, and two mounting terminals are provided on a second diagonal line. At least one of the two electrode pads is connected to any one of the two mounting terminals on the second diagonal line through a first conductive film provided on an inner wall of the through hole.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: February 16, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Masayuki Kikushima, Toshiaki Sato
  • Patent number: 9252350
    Abstract: An oscillation piece includes a first oscillation arm and a second oscillation arm, a first base that connects ends of the first oscillation arm and the second oscillation arm on one side to each other and a second base that connects ends of the first oscillation arm and the second oscillation arm on the other side to each other, and weight films provided on each of the first oscillation arm and the second oscillation arm. The drive electrodes are disposed in positions where the amount of distortion produced in the first oscillation arm and the second oscillation arm is maximized, and the weight films are disposed in positions where the amount of distortion produced in the first oscillation arm and the second oscillation arm is minimized. The oscillation frequency of the oscillation piece can be precisely adjusted by removing part of the weight films.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: February 2, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Masayuki Kikushima
  • Patent number: 9143113
    Abstract: A resonator element includes a piezoelectric substrate including a vibrating section and a thick section having a thickness larger than that of the vibrating section. The thick section includes a first thick section provided along a first outer edge of the vibrating section, a second thick section provided along a second outer edge, and a third thick section provided along a third outer edge. A first inclined outer edge section that is inclined with respect to both of an X axis direction and a Z? axis direction is provided in a corner section of the piezoelectric substrate where the second thick section and the third thick section are connected to each other.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: September 22, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Masako Tanaka, Naohisa Obata, Masayuki Kikushima
  • Publication number: 20150222243
    Abstract: A vibration element includes a piezoelectric substrate including a vibrating section and a thick section having a thickness larger than that of the vibrating section. The thick section includes a first thick section provided along a first outer edge of the vibrating section, a second thick section provided along a second outer edge, and a third thick section provided along another first outer edge. An inclined outer edge section that intersects with each of an X axis and a Z? axis is provided in a tip section of the piezoelectric substrate.
    Type: Application
    Filed: April 17, 2015
    Publication date: August 6, 2015
    Inventors: Masayuki KIKUSHIMA, Masako TANAKA, Naohisa OBATA, Yukihiro UNNO
  • Patent number: 9070863
    Abstract: A resonator element includes a piezoelectric substrate that includes a vibration portion, and a thick portion which is integrally formed with an outer edge excluding a partial outer edge in an outer edge of the vibration portion and which is thicker than the vibration portion, and a pair of excitation electrodes that are respectively provided on a first main surface and a second main surface of a vibration region which are in front and rear relationships. In addition, the piezoelectric substrate includes first and second beam portions that are provided along a fourth side of the vibration portion.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: June 30, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masayuki Kikushima, Masako Tanaka, Naohisa Obata, Yukihiro Unno
  • Patent number: 9035709
    Abstract: A vibration element includes a piezoelectric substrate including a vibrating section and a thick section having a thickness larger than that of the vibrating section. The thick section includes a first thick section provided along a first outer edge of the vibrating section, a second thick section provided along a second outer edge, and a third thick section provided along another first outer edge. An inclined outer edge section that intersects with each of an X axis and a Z? axis is provided in a tip section of the piezoelectric substrate.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: May 19, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masayuki Kikushima, Masako Tanaka, Naohisa Obata, Yukihiro Unno
  • Publication number: 20150116052
    Abstract: A quartz crystal resonator includes a quartz crystal resonator element, a thermistor, a second layer including a first principal surface and a second principal surface, and a third layer having a through hole. internal terminals are provided on the first principal surface side, and electrode pads are provided in a portion exposed from the through hole on the second principal surface side. The quartz crystal resonator element is attached to the internal terminals, and the thermistor is attached to the electrode pads. Two mounting terminals are provided on a first diagonal line on the third principal surface side of the third layer, and two mounting terminals are provided on a second diagonal line. At least one of the two electrode pads is connected to any one of the two mounting terminals on the second diagonal line through a first conductive film provided on an inner wall of the through hole.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Inventors: Masayuki KIKUSHIMA, Toshiaki SATO
  • Publication number: 20140292434
    Abstract: A vibration element includes a piezoelectric substrate including a vibrating section and a thick section having a thickness larger than that of the vibrating section. The thick section includes a first thick section provided along a first outer edge of the vibrating section, a second thick section provided along a second outer edge, and a third thick section provided along another first outer edge. An inclined outer edge section that intersects with each of an X axis and a Z? axis is provided in a tip section of the piezoelectric substrate.
    Type: Application
    Filed: March 20, 2014
    Publication date: October 2, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Masayuki KIKUSHIMA, Masako TANAKA, Naohisa OBATA, Yukihiro UNNO
  • Publication number: 20140292437
    Abstract: A resonator element includes a piezoelectric substrate including a vibrating section and a thick section having a thickness larger than that of the vibrating section. The thick section includes a first thick section provided along a first outer edge of the vibrating section, a second thick section provided along a second outer edge, and a third thick section provided along a third outer edge. A first inclined outer edge section that is inclined with respect to both of an X axis direction and a Z? axis direction is provided in a corner section of the piezoelectric substrate where the second thick section and the third thick section are connected to each other.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Masako TANAKA, Naohisa OBATA, Masayuki KIKUSHIMA
  • Publication number: 20140292436
    Abstract: A vibration element includes a piezoelectric substrate including a vibrating section and a thick section having a thickness larger than that of the vibrating section. The thick section includes a first thick section provided along a first outer edge of the vibrating section, a second thick section provided along a second outer edge thereof, and a third thick section provided along a third outer edge thereof. When a maximum size of the second thick section in the vibration direction is Lmax and a minimum size thereof is Lmin, an average size expressed by (Lmax+Lmin)/2 is 100 ?m or smaller.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Masayuki KIKUSHIMA, Masako TANAKA, Naohisa OBATA, Yukihiro UNNO
  • Publication number: 20140253253
    Abstract: A resonator element includes a piezoelectric substrate that includes a vibration portion, and a thick portion which is integrally formed with an outer edge excluding a partial outer edge in an outer edge of the vibration portion and which is thicker than the vibration portion, and a pair of excitation electrodes that are respectively provided on a first main surface and a second main surface of a vibration region which are in front and rear relationships. In addition, the piezoelectric substrate includes first and second beam portions that are provided along a fourth side of the vibration portion.
    Type: Application
    Filed: February 27, 2014
    Publication date: September 11, 2014
    Inventors: Masayuki KIKUSHIMA, Masako TANAKA, Naohisa OBATA, Yukihiro UNNO
  • Patent number: 8633638
    Abstract: A piezoelectric resonator element includes: a resonating arm extending in a first direction and cantilever-supported; a base portion cantilever-supporting the resonating arm; and an excitation electrode allowing the resonating arm to perform flexural vibration in a second direction that is orthogonal to the first direction. In the piezoelectric resonator element, the resonating arm includes an adjusting part adjusting rigidity with respect to a bend in a third direction that is orthogonal to the first and second directions.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: January 21, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Masayuki Kikushima
  • Publication number: 20140015381
    Abstract: An oscillation piece includes a first oscillation arm and a second oscillation arm, a first base that connects ends of the first oscillation arm and the second oscillation arm on one side to each other and a second base that connects ends of the first oscillation arm and the second oscillation arm on the other side to each other, and weight films provided on each of the first oscillation arm and the second oscillation arm. The drive electrodes are disposed in positions where the amount of distortion produced in the first oscillation arm and the second oscillation arm is maximized, and the weight films are disposed in positions where the amount of distortion produced in the first oscillation arm and the second oscillation arm is minimized. The oscillation frequency of the oscillation piece can be precisely adjusted by removing part of the weight films.
    Type: Application
    Filed: July 8, 2013
    Publication date: January 16, 2014
    Inventor: Masayuki Kikushima
  • Patent number: 8497620
    Abstract: A piezoelectric resonator element includes: a resonating arm extending in a first direction and cantilever-supported; a base portion cantilever-supporting the resonating arm; and an excitation electrode allowing the resonating arm to perform flexural vibration in a second direction that is orthogonal to the first direction. In the piezoelectric resonator element, the resonating arm includes an adjusting part adjusting rigidity with respect to a bend in a third direction that is orthogonal to the first and second directions.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: July 30, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Masayuki Kikushima
  • Patent number: 8294338
    Abstract: A piezoelectric resonator element includes: a resonating arm extending in a first direction and cantilever-supported; a base portion cantilever-supporting the resonating arm; and an excitation electrode allowing the resonating arm to perform flexural vibration in a second direction that is orthogonal to the first direction. In the piezoelectric resonator element, the resonating arm includes an adjusting part adjusting rigidity with respect to a bend in a third direction that is orthogonal to the first and second directions.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: October 23, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Masayuki Kikushima