Patents by Inventor Yoshihisa Inoue

Yoshihisa Inoue 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: 11909379
    Abstract: A MEMS device that includes a substrate including an element and a connection wiring electrically connected to the element, and a connection portion electrically connected to the connection wiring. The connection portion is formed of a eutectic alloy of a first metal and a second metal. A line width of the connection wiring is smaller than a width of the connection portion when a main surface of the substrate is viewed in a plan view.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: February 20, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihisa Inoue, Masakazu Fukumitsu, Yuichi Goto
  • Patent number: 11909375
    Abstract: A resonance device is provided for reducing the influence on the resonant frequency of the resonance device of the electric charge borne by an insulating film of a frame. The resonance device includes a resonator including a vibration portion and a frame disposed in at least a part of a vicinity of the vibration portion. The frame includes a holding body and an insulating film, with the holding body holding the vibration portion to vibrate and the insulating film being formed above the holding body. A lower cover is provided having a recess forming at least a part of a space in which the vibration portion vibrates. An inner side surface of the insulating film is disposed at a first distance from an inner surface of a side wall defining the recess.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: February 20, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Keiichi Umeda, Naoto Yatani, Ryota Kawai, Yoshihisa Inoue
  • Publication number: 20230365789
    Abstract: The present invention provides a rubber composition, containing 10 parts by mass or more and 90 parts by mass or less of a rubber-like polymer having an iodine value of 10 to 200 (g/100 g), a content of an ethylene structure of 3% by mass or more, a content of an aromatic vinyl monomer block of less than 10% by mass, and a content of a conjugated diene monomer unit of 2% by mass or more; 10 parts by mass or more and 90 parts by mass or less of a natural rubber; and 20 parts by mass or more and 80 parts by mass or less of a silica-based inorganic filler and a carbon black, with respect to 100 parts by mass of a total amount of a rubber component.
    Type: Application
    Filed: October 22, 2021
    Publication date: November 16, 2023
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventor: Yoshihisa Inoue
  • Patent number: 11804820
    Abstract: A resonator is provided that includes a vibration member including three or more vibration arms that each have a fixed end with at least two vibration arms performing out-of-plane bending at different phases. The resonator also includes a base having a front end connected to the fixed end of each of the vibration arms and a rear end opposing the front end. A frame holds the vibration member and two support arms are provided with first ends connected to the frame. The second ends of the two support arms are connected to a location in the rear end of the base.
    Type: Grant
    Filed: September 15, 2022
    Date of Patent: October 31, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Ryota Kawai, Yoshihisa Inoue, Yoshiyuki Higuchi
  • Patent number: 11629046
    Abstract: A MEMS device is provided that includes a piezoelectric film, a first electrode and a second electrode sandwiching the piezoelectric film, a protective film that covers at least part of the second electrode and having a cavity that opens part of the second electrode, a third electrode that contacts the second electrode at least in the cavity and is provided so as to cover at least part of the protective film, and a first wiring layer having a first contact portion in contact with the third electrode.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: April 18, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Keiichi Umeda, Tadayuki Okawa, Taku Kamoto, Yuichi Goto, Yoshihisa Inoue, Takehiko Kishi
  • Publication number: 20230015447
    Abstract: A resonator is provided that includes a vibration member including three or more vibration arms that each have a fixed end with at least two vibration arms performing out-of-plane bending at different phases. The resonator also includes a base having a front end connected to the fixed end of each of the vibration arms and a rear end opposing the front end. A frame holds the vibration member and two support arms are provided with first ends connected to the frame. The second ends of the two support arms are connected to a location in the rear end of the base.
    Type: Application
    Filed: September 15, 2022
    Publication date: January 19, 2023
    Inventors: Ryota KAWAI, Yoshihisa INOUE, Yoshiyuki HIGUCHI
  • Publication number: 20230018209
    Abstract: A vibration member is provided that includes a base with front and rear ends opposite to each other, and vibration arms fixed to the front end, extending away therefrom, and including at least one first vibration arm and a pair of second vibration arms positioned on both sides of a first vibration arm group including the at least one first vibration arm in a direction intersecting a longitudinal direction. A holding arm is provided that has one end connected to the base and the other end connected to a frame. A plurality of vibration portions include a piezoelectric film, and a lower electrode and an upper electrode that sandwich the piezoelectric film. A connection wiring line that connects the respective upper electrodes of the pair of second vibration arms to each other is provided in a region of at least either of the base or the holding arm.
    Type: Application
    Filed: September 14, 2022
    Publication date: January 19, 2023
    Inventors: Yoshiyuki HIGUCHI, Ryota KAWAI, Yoshihisa INOUE, Masakazu FUKUMITSU
  • Patent number: 11405016
    Abstract: A resonator includes a vibration portion with a vibration arm extending from a base and having an open end that performs bending vibration. The vibration portion includes upper and lower electrodes with a piezoelectric film disposed therebetween that causes bending vibration of the vibration arm when a voltage is applied between the upper and lower electrodes. A protective film faces the piezoelectric film with the upper electrode interposed therebetween and a conductive film faces the piezoelectric film with the protective film interposed therebetween. Moreover, the conductive film is exposed in a region at the open end and a via electrode is formed in the protective film to electrically connect the conductive film to one of the upper and lower electrodes. The via electrode is positioned closer to a first region than the open end in the second region of the vibration arm in a plan view of the piezoelectric film.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: August 2, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihisa Inoue, Ryota Kawai
  • Patent number: 11368141
    Abstract: A resonator is provided that includes a base, and three or more vibrating arms each including a first and second electrodes and a piezoelectric film disposed therebetween and having a top surface facing the first electrode. The piezoelectric film vibrates in a predetermined vibration mode when a voltage is applied between the first and second electrodes. Moreover, the three or more vibrating arms include two first arms each located on an outermost side in a direction in which the three or more vibrating arms are arranged and that vibrate in a same phase, and one or more second arms disposed between the two first arms. Each first arm is greater in mass than each second arm.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: June 21, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihisa Inoue, Ryota Kawai
  • Publication number: 20220029598
    Abstract: A resonance device is provided that includes a resonator having a base, a vibrating arm extending from one end of the base along a first direction, a frame disposed around at least a part of the vibrating arm and holding the vibrating arm such that the vibrating arm is configured to vibrate, and a support arm connecting the base to the frame. Moreover, a first substrate is provided that includes a first recess forming at least a part of a vibration space for the resonator and a first limiting portion provided away from the support arm by a first distance in a thickness direction, in which the first distance is smaller than a distance between a bottom surface of the first recess and the vibrating arm in the thickness direction of the first substrate.
    Type: Application
    Filed: October 4, 2021
    Publication date: January 27, 2022
    Inventors: Yoshihisa Inoue, Ville Kaajakari, Ryota Kawai
  • Publication number: 20220002535
    Abstract: A molded bale of a rubber-like block copolymer, the rubber-like block copolymer containing 5% by mass or more and 95% by mass or less of a polymer block (a) having a content of a vinyl aromatic monomer unit of 22% by mass or less; and 5% by mass or more and 95% by mass or less of a polymer block (b) having a content of a vinyl aromatic monomer unit of 23% by mass or more and less than 50% by mass, in which the rubber-like block copolymer has an iodine value of 10 to 250, an ethylene structure content of 3% by mass or more, and a vinyl aromatic monomer block content of less than 10% by mass.
    Type: Application
    Filed: July 2, 2021
    Publication date: January 6, 2022
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Yoshifumi Araki, Atsushi Yasumoto, Daigo Matsuoka, Yoshihisa Inoue, Tomohiro Kondo
  • Patent number: 11196407
    Abstract: A resonator is provided that includes a vibrating portion including a three or more vibrating arms each having a fixed end and a free end, with at least two of the vibrating arms configured to bend out of plane in different phases, and a base having a front end connected to the fixed end of each vibrating arm and a rear end opposite from the front end. Moreover, a frame is disposed at least partially around the vibrating portion, a holding arm is provided between the vibrating portion and the holding portion and includes a first end connected to the base and a second end connected to the frame, and a plurality of holes disposed in the vibrating portion. Moreover, the plurality of holes are each formed in a region between any one pair of adjacent two of the plurality of vibrating arms in the base portion.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: December 7, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Ryota Kawai, Yoshihisa Inoue, Ville Kaajakari
  • Publication number: 20210203304
    Abstract: A resonator includes a base; and at least three vibrating arms having first ends connected to a front end of the base and second ends that are open ends spaced away from the front end. Each vibrating arm includes an arm portion having a part that extends from the fixed end in a direction toward the open end with a constant width and a mass-adding portion that is connected to a tip of the arm portion and has a larger width than the arm portion. An interval between the mass-adding portions is larger than an interval between the arm portions for any two vibrating arms that are adjacent to each other.
    Type: Application
    Filed: February 22, 2021
    Publication date: July 1, 2021
    Inventors: Yoshihisa Inoue, Ryota Kawai, Yuichi Goto
  • Publication number: 20210194454
    Abstract: A resonance device is provided for reducing the influence on the resonant frequency of the resonance device of the electric charge borne by an insulating film of a frame. The resonance device includes a resonator including a vibration portion and a frame disposed in at least a part of a vicinity of the vibration portion. The frame includes a holding body and an insulating film, with the holding body holding the vibration portion to vibrate and the insulating film being formed above the holding body. A lower cover is provided having a recess forming at least a part of a space in which the vibration portion vibrates. An inner side surface of the insulating film is disposed at a first distance from an inner surface of a side wall defining the recess.
    Type: Application
    Filed: March 9, 2021
    Publication date: June 24, 2021
    Inventors: Keiichi Umeda, Naoto Yatani, Ryota Kawai, Yoshihisa Inoue
  • Publication number: 20210184651
    Abstract: A resonator includes a base, at least one vibration arm, a frame, and a holding arm. The vibration arm includes a piezoelectric film, an upper electrode, and a lower electrode. The inequality Fs/Fm<1.9 or the inequality 2.1<Fs/Fm holds, where Fm is a frequency of a main or primary mode in the vibration arm, and Fs is a frequency of a spurious mode in the holding arm.
    Type: Application
    Filed: March 2, 2021
    Publication date: June 17, 2021
    Inventors: Ryota Kawai, Yuichi Goto, Yoshihisa Inoue
  • Publication number: 20210167754
    Abstract: A resonator is provided that includes a base; at least three vibrating arms that include a piezoelectric film, an upper electrode, and a lower electrode; a frame; and a holding arm. Each vibrating arm includes an arm portion and a tip portion. The holding arm includes a holding side arm that extends parallel to the outer vibrating arm. A release width between the tip portion of the outer vibrating arm and the frame is larger than a release width between the holding side arm and the frame or a release width between the arm portion of the outer vibrating arm and the holding side arm.
    Type: Application
    Filed: February 8, 2021
    Publication date: June 3, 2021
    Inventors: Yoshihisa Inoue, Ryota Kawai, Yuichi Goto
  • Publication number: 20210083647
    Abstract: A MEMS device that includes a substrate including an element and a connection wiring electrically connected to the element, and a connection portion electrically connected to the connection wiring. The connection portion is formed of a eutectic alloy of a first metal and a second metal. A line width of the connection wiring is smaller than a width of the connection portion when a main surface of the substrate is viewed in a plan view.
    Type: Application
    Filed: December 1, 2020
    Publication date: March 18, 2021
    Inventors: Yoshihisa Inoue, Masakazu Fukumitsu, Yuichi Goto
  • Patent number: 10879873
    Abstract: A resonator includes a vibration portion with upper and lower electrodes with a piezoelectric film disposed therebetween. Moreover, a protective film is provided to face the piezoelectric film with the upper electrode interposed therebetween and is exposed in a first region in the vibration portion. A conductive film is provided to face the piezoelectric film with the protective film interposed therebetween and is exposed in a second region that is adjacent to the first region in the vibration portion. A connection electrode is formed in the protective film to electrically connect the conductive film to the lower electrode. The upper electrode is formed such that an area of a region overlapping the conductive film is equal to or smaller than half of a total area of the conductive film and/or avoids the region overlapping the conductive film.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: December 29, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihisa Inoue, Ryota Kawai
  • Publication number: 20200290865
    Abstract: A MEMS device is provided that includes a piezoelectric film, a first electrode and a second electrode sandwiching the piezoelectric film, a protective film that covers at least part of the second electrode and having a cavity that opens part of the second electrode, a third electrode that contacts the second electrode at least in the cavity and is provided so as to cover at least part of the protective film, and a first wiring layer having a first contact portion in contact with the third electrode.
    Type: Application
    Filed: May 28, 2020
    Publication date: September 17, 2020
    Inventors: Keiichi Umeda, Tadayuki Okawa, Taku Kamoto, Yuichi Goto, Yoshihisa Inoue, Takehiko Kishi
  • Patent number: 10749496
    Abstract: A resonator is provided having a first electrode and a second electrode; and a piezoelectric film that is disposed between the first and second electrodes, has an upper surface opposing the first electrode, and that vibrates in a predetermined vibration mode when a voltage is applied between the first and second electrodes. Moreover, the resonator includes a protective film made of an insulator and disposed opposing the upper surface of the piezoelectric film with the first electrode interposed therebetween. Furthermore, a conductive film made of a conductor is provided that is disposed opposing the upper surface of the piezoelectric film with the protective film interposed therebetween, where the conductive film is electrically connected to any one of the first and second electrodes.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: August 18, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kentaro Yoshii, Yuichi Goto, Keisuke Takeyama, Toshio Nishimura, Shungo Morinaga, Ryota Kawai, Yoshihisa Inoue