Patents by Inventor Hiroaki Tamura

Hiroaki Tamura 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: 20220126209
    Abstract: During a predetermined period, a team competition event is held. If a game regarding the team competition event is performed using a character belonging to a user team to which a user belongs, the user can acquire team medals, and the team medals are added to the user team. If, on the other hand, the game is performed using a character belonging to a team other than the user team to which the user belongs, the team medals are not added to the user team. After the lapse of the predetermined period, in accordance with team medals of each team, the result of the team competition event is displayed.
    Type: Application
    Filed: September 3, 2021
    Publication date: April 28, 2022
    Inventors: Daiji IMAI, Hiroaki TAMURA, Takahiro IWASAKI, Kenichiro YOSHIOKA
  • Patent number: 11192367
    Abstract: There is provided a piezoelectric device including a pressure chamber, a piezoelectric element, and a diaphragm disposed between the pressure chamber and the piezoelectric element. The diaphragm has a vibration region that overlaps the pressure chamber in plan view. The piezoelectric element overlaps the vibration region in plan view. The diaphragm has a crystal plane {110} of a single crystal silicon base, or a crystal plane of a single crystal silicon base of which a Young's modulus and a Poisson's ratio vary according to a crystal orientation.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: December 7, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Hiroaki Tamura, Sayaka Yamasaki
  • Patent number: 10849596
    Abstract: A piezoelectric element includes: a piezoelectric body; and a vibrating plate including single crystal silicon having anisotropy having orientation with a relatively high Young's modulus and orientation with a relatively low Young's modulus (hereinafter, referred to as “low Young's modulus orientation”) as a vibrating material, in which the piezoelectric body and the vibrating plate are laminated on each other so that the low Young's modulus orientation is in a direction along a high expansion and contraction direction among a direction where a degree of expansion and contraction caused according to a support structure of the piezoelectric body is relatively high (hereinafter, referred to as “high expansion and contraction direction”) and a direction where a degree thereof is relatively low.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: December 1, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Sayaka Yamasaki, Hiroaki Tamura
  • Patent number: 10828013
    Abstract: A piezoelectric element includes: a piezoelectric body; and a vibrating plate including single crystal silicon having anisotropy having orientation with a relatively high Poisson's ratio and orientation with a relatively low Poisson's ratio (hereinafter, referred to as “low Poisson's ratio orientation”) as a vibrating material, in which the piezoelectric body and the vibrating plate are laminated on each other so that the low Poisson's ratio orientation is in a direction along a high expansion and contraction direction among a direction where a degree of expansion and contraction caused according to a support structure of the piezoelectric body is relatively high (hereinafter, referred to as “high expansion and contraction direction”) and a direction where a degree thereof is relatively low.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: November 10, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Sayaka Yamasaki, Hiroaki Tamura
  • Publication number: 20200206620
    Abstract: An in-game event occurring based on a user's input is detected in a game of each time, where the game is performed a plurality of times. A first parameter is increased or decreased based on the in-game event occurring in the game of each time, the first parameter being reset for the game of each time, to calculate a score in the game of each time. A second parameter is increased or decreased based on a result of the game determined based on an assessment parameter different from a final score, the second parameter being used in the game of the plurality of times without being reset for the game of each time.
    Type: Application
    Filed: December 20, 2019
    Publication date: July 2, 2020
    Inventors: Yugo HAYASHI, Miyuki KIMURA, Shinya FUJIWARA, Kyosuke SHIMOKAWA, Hiroaki TAMURA
  • Patent number: 10647117
    Abstract: There is provided a piezoelectric device including a pressure chamber, a piezoelectric element, and a diaphragm disposed between the pressure chamber and the piezoelectric element. The piezoelectric element is disposed on the diaphragm so as to overlap an inner periphery of the pressure chamber in plan view, and has an inner edge on a center side of the pressure chamber with the inner periphery of the pressure chamber being sandwiched within the piezoelectric element in plan view. A shape of the inner edge of the piezoelectric element is such that in the smallest first rectangle, which includes the inner edge in plan view.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: May 12, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Hiroaki Tamura, Sayaka Yamasaki
  • Patent number: 10639893
    Abstract: There is provided a piezoelectric device including a pressure chamber, a piezoelectric element, and a diaphragm disposed between the pressure chamber and the piezoelectric element. The diaphragm has a crystal plane of an anisotropic single crystal silicon base of which a Young's modulus varies according to a direction in the crystal plane. In a vibration region of the diaphragm, which overlaps the pressure chamber in plan view, a first Young's modulus in a first direction, out of Young's modulus in the crystal plane, is higher than a second Young's modulus in the crystal plane in a second direction intersecting the first direction. A width of the piezoelectric element in the first direction is larger than a width of the piezoelectric element in the second direction.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: May 5, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Sayaka Yamasaki, Hiroaki Tamura
  • Patent number: 10363016
    Abstract: A piezoelectric element, in which a piezoelectric body, and a vibrating plate having [111]-oriented single crystal silicon as a vibrating material are laminated is provided. In addition, a manufacturing method of a piezoelectric element including: cutting out a vibrating material to be used in the vibrating plate from a [111]-oriented single crystal silicon wafer; and laminating a piezoelectric body and the vibrating plate is provided.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: July 30, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Sayaka Yamasaki, Hiroaki Tamura
  • Publication number: 20180342665
    Abstract: There is provided a piezoelectric device including a pressure chamber, a piezoelectric element, and a diaphragm disposed between the pressure chamber and the piezoelectric element. The diaphragm has a crystal plane of an anisotropic single crystal silicon base of which a Poisson's ratio varies according to a direction in the crystal plane. In a vibration region of the diaphragm, which overlaps the pressure chamber in plan view, the Poisson's ratio of the diaphragm in a short axis direction of the smallest rectangle, which includes the vibration region, is included in a range of a minimum value of the Poisson's ratio in the crystal plane inclusive to an average value of the Poisson's ratios in the crystal plane exclusive.
    Type: Application
    Filed: May 29, 2018
    Publication date: November 29, 2018
    Inventors: Sayaka YAMASAKI, Hiroaki TAMURA
  • Publication number: 20180339514
    Abstract: There is provided a piezoelectric device including a pressure chamber, a piezoelectric element, and a diaphragm disposed between the pressure chamber and the piezoelectric element. The diaphragm has a vibration region that overlaps the pressure chamber in plan view. The piezoelectric element overlaps the vibration region in plan view. The diaphragm has a crystal plane {110} of a single crystal silicon base, or a crystal plane of a single crystal silicon base of which a Young's modulus and a Poisson's ratio vary according to a crystal orientation.
    Type: Application
    Filed: May 23, 2018
    Publication date: November 29, 2018
    Inventors: Hiroaki TAMURA, Sayaka YAMASAKI
  • Publication number: 20180339515
    Abstract: There is provided a piezoelectric device including a pressure chamber, a piezoelectric element, and a diaphragm disposed between the pressure chamber and the piezoelectric element. The diaphragm has a crystal plane of an anisotropic single crystal silicon base of which a Young's modulus varies according to a direction in the crystal plane. In a vibration region of the diaphragm, which overlaps the pressure chamber in plan view, a first Young's modulus in a first direction, out of Young's modulus in the crystal plane, is higher than a second Young's modulus in the crystal plane in a second direction intersecting the first direction. A width of the piezoelectric element in the first direction is larger than a width of the piezoelectric element in the second direction.
    Type: Application
    Filed: May 24, 2018
    Publication date: November 29, 2018
    Inventors: Sayaka YAMASAKI, Hiroaki TAMURA
  • Publication number: 20180339513
    Abstract: There is provided a piezoelectric device including a pressure chamber, a piezoelectric element, and a diaphragm disposed between the pressure chamber and the piezoelectric element. The diaphragm has a crystal plane of an anisotropic single crystal silicon base of which a Poisson's ratio varies according to a direction in the crystal plane. In a vibration region of the diaphragm, which overlaps the pressure chamber in plan view, the Poisson's ratio of the diaphragm in a short axis direction of the smallest rectangle, which includes the vibration region, is included in a range of an average value of the Poisson's ratios in the crystal plane exclusive to a maximum value of the Poisson's ratio in the crystal plane inclusive.
    Type: Application
    Filed: May 23, 2018
    Publication date: November 29, 2018
    Inventors: Sayaka YAMASAKI, Hiroaki TAMURA
  • Publication number: 20180339516
    Abstract: There is provided a piezoelectric device including a pressure chamber, a piezoelectric element, and a diaphragm disposed between the pressure chamber and the piezoelectric element. The piezoelectric element is disposed on the diaphragm so as to overlap an inner periphery of the pressure chamber in plan view, and has an inner edge on a center side of the pressure chamber with the inner periphery of the pressure chamber being sandwiched within the piezoelectric element in plan view. A shape of the inner edge of the piezoelectric element is such that in the smallest first rectangle, which includes the inner edge in plan view.
    Type: Application
    Filed: May 24, 2018
    Publication date: November 29, 2018
    Inventors: Hiroaki TAMURA, Sayaka YAMASAKI
  • Patent number: 9741979
    Abstract: To provide a battery pack less subject to vibration, shock, or the like and stable in characteristics. A battery pack includes a unit battery obtained by accommodating, in a casing film, a battery element in which positive and negative electrodes are stacked via separators, the unit battery having a sealing portion obtained by sealing opposing synthetic resin layers formed on inner surface of the casing film; and a lithium ion secondary battery stacked body obtained by stacking a plurality of the unit batteries and winding a fixing tape therearound. A sealing surface of the sealing portion is substantially parallel to a unit battery stacking surface, and an end surface of the sealing portion is brought into contact with the fixing tape.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: August 22, 2017
    Assignee: NEC ENERGY DEVICES, LTD.
    Inventors: Hiroaki Tamura, Kazunori Maruoka
  • Publication number: 20170143308
    Abstract: A piezoelectric element, in which a piezoelectric body, and a vibrating plate having [111]-oriented single crystal silicon as a vibrating material are laminated is provided. In addition, a manufacturing method of a piezoelectric element including: cutting out a vibrating material to be used in the vibrating plate from a [111]-oriented single crystal silicon wafer; and laminating a piezoelectric body and the vibrating plate is provided.
    Type: Application
    Filed: November 23, 2016
    Publication date: May 25, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Sayaka YAMASAKI, Hiroaki TAMURA
  • Publication number: 20170119350
    Abstract: A piezoelectric element includes: a piezoelectric body; and a vibrating plate including single crystal silicon having anisotropy having orientation with a relatively high Poisson's ratio and orientation with a relatively low Poisson's ratio (hereinafter, referred to as “low Poisson's ratio orientation”) as a vibrating material, in which the piezoelectric body and the vibrating plate are laminated on each other so that the low Poisson's ratio orientation is in a direction along a high expansion and contraction direction among a direction where a degree of expansion and contraction caused according to a support structure of the piezoelectric body is relatively high (hereinafter, referred to as “high expansion and contraction direction”) and a direction where a degree thereof is relatively low.
    Type: Application
    Filed: November 1, 2016
    Publication date: May 4, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Sayaka YAMASAKI, Hiroaki TAMURA
  • Publication number: 20170119351
    Abstract: A piezoelectric element includes: a piezoelectric body; and a vibrating plate including single crystal silicon having anisotropy having orientation with a relatively high Young's modulus and orientation with a relatively low Young's modulus (hereinafter, referred to as “low Young's modulus orientation”) as a vibrating material, in which the piezoelectric body and the vibrating plate are laminated on each other so that the low Young's modulus orientation is in a direction along a high expansion and contraction direction among a direction where a degree of expansion and contraction caused according to a support structure of the piezoelectric body is relatively high (hereinafter, referred to as “high expansion and contraction direction”) and a direction where a degree thereof is relatively low.
    Type: Application
    Filed: November 2, 2016
    Publication date: May 4, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Sayaka YAMASAKI, Hiroaki TAMURA
  • Publication number: 20150147638
    Abstract: To provide a battery pack less subject to vibration, shock, or the like and stable in characteristics. A battery pack includes a unit battery obtained by accommodating, in a casing film, a battery element in which positive and negative electrodes are stacked via separators, the unit battery having a sealing portion obtained by sealing opposing synthetic resin layers formed on inner surface of the casing film; and a lithium ion secondary battery stacked body obtained by stacking a plurality of the unit batteries and winding a fixing tape therearound. A sealing surface of the sealing portion is substantially parallel to a unit battery stacking surface, and an end surface of the sealing portion is brought into contact with the fixing tape.
    Type: Application
    Filed: June 24, 2013
    Publication date: May 28, 2015
    Applicant: NEC ENERGY DEVICES, LTD.
    Inventors: Hiroaki Tamura, Kazunori Maruoka
  • Patent number: 8878067
    Abstract: An electronic-component lead terminal includes a lead terminal one end of which is connectable to an electronic component and the other end of which is connectable to an electrode, and a solder-wicking prevention area formed on a surface of the lead terminal so as to intersect a solder-wicking direction oriented from the other end toward the one end, the solder-wicking prevention area including a plurality of portions projecting to a downstream side in the solder-wicking direction.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: November 4, 2014
    Assignee: Fujitsu Limited
    Inventors: Hiroaki Tamura, Fumihiko Tokura
  • Patent number: 8816938
    Abstract: A large-scale display device having a plurality of display units which each include a plurality of elongated plasma tubes each filled with a discharge gas, and at least one pair of display electrodes disposed outside the plasma tubes, voltage applying means which applies a drive voltage to the display electrodes to cause electric discharge in the plasma tubes for display. Vertically adjoining ones of the display units respectively have adjoining portions which are offset thicknesswise from each other for prevention of contact between the plasma tubes of the vertically adjoining display units. The voltage applying means is disposed away from the adjoining portions of the vertically adjoining display units.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: August 26, 2014
    Assignee: Shinoda Plasma Corporation
    Inventors: Hiroaki Tamura, Hitoshi Hirakawa, Koji Shinohe, Yoshio Shibukawa, Takamitsu Bunno, Kenji Awamoto, Yoko Shinoda, Tetsuya Makino