Patents by Inventor MITSUNORI MIYANARI

MITSUNORI MIYANARI 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: 20210091381
    Abstract: A nonaqueous electrolyte secondary battery using a silicon compound as a negative electrode active material, suppress deformation of a negative electrode. An embodiment includes a winding type electrode body in which a positive electrode and a negative electrode are spirally wound with at least one separator interposed therebetween. In a negative electrode mixture layer, a silicon compound is contained as a negative electrode active material. A winding-start side end of the negative electrode mixture layer extends to a winding-start end side of the electrode body past a winding-start side end of a positive electrode mixture layer. A length Y (mm) of a portion of the negative electrode mixture layer extending from the winding-start side end of the positive electrode mixture layer and a rate X (percent by mass) of the silicon compound with respect to the total mass of the negative electrode active material satisfy a relationship of Y?3X?15 (6?X?15).
    Type: Application
    Filed: December 6, 2018
    Publication date: March 25, 2021
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Mitsunori Miyanari, Syunsuke Natsumeda, Kei Kobayashi, Atsushi Mizawa
  • Publication number: 20210013489
    Abstract: A non-aqueous electrolyte secondary battery according to one aspect of the present invention includes: a positive electrode plate in which a positive electrode mixture layer containing a positive electrode active material is formed on a positive electrode current collector; a negative electrode plate in which a negative electrode mixture layer containing a negative electrode active material is formed on a negative electrode current collector; a separator; a non-aqueous electrolyte; a sealing member; and an outer casing. The negative electrode active material contains graphite and a silicon material. The silicon material contains silicon oxide represented by SiOx (0.5?x<1.6) and a silicon-lithium silicate composite in which a silicon phase is dispersed in a lithium silicate phase represented by Li2zSiO(2+z) (0<z<2). The amount of the silicon-lithium silicate composite is 33% by mass or more and 93% by mass or less relative to the silicon material.
    Type: Application
    Filed: January 11, 2019
    Publication date: January 14, 2021
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Sanae Hashitani, Mitsunori Miyanari, Masashi Takigawa
  • Publication number: 20190379346
    Abstract: A surface acoustic wave device comprises a substrate and an interdigital transducer (IDT) electrode disposed on the substrate. The IDT electrode includes a lower electrode layer having a lower surface in contact with an upper surface of the substrate and an upper electrode layer having a lower surface defining a base in contact with an upper surface of the lower electrode layer. Side surfaces of the lower electrode layer are substantially perpendicular to the upper surface of the substrate. Side surfaces of the upper electrode layer are disposed at an acute angle relative to the upper surface of the substrate.
    Type: Application
    Filed: August 20, 2019
    Publication date: December 12, 2019
    Inventors: Tomohiro Iwasaki, Hiroyuki Nakamura, Toru Yamaji, Mitsunori Miyanari, Masahiro Yasumi, Shoji Okamoto
  • Patent number: 10439585
    Abstract: An acoustic wave device comprises an IDT electrode disposed above an upper surface of a piezoelectric substrate and includes a plurality of electrode fingers configured to excite a main acoustic wave. A first dielectric film made of an oxide is disposed above the upper surface of the piezoelectric substrate and covers the plurality of electrode fingers. A second dielectric film made of non-oxide is disposed between the first dielectric film and each of the plurality of electrode fingers. A third dielectric film is disposed between the piezoelectric substrate and the plurality of electrode fingers. A speed of a transverse wave propagating through the third dielectric film is greater than a speed of the main acoustic wave propagating through the piezoelectric substrate. The third dielectric film contacts the first dielectric film between adjacent electrode fingers of the plurality of electrode fingers.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: October 8, 2019
    Assignee: SKYWORKS FILTER SOLUTIONS JAPAN CO., LTD.
    Inventors: Tomohiro Iwasaki, Hiroyuki Nakamura, Toru Yamaji, Mitsunori Miyanari, Masahiro Yasumi, Shoji Okamoto
  • Patent number: 10389326
    Abstract: Methods and apparatus for reducing electric loss in an elastic wave element. In one example such a method includes forming an IDT electrode on a piezoelectric body, and forming the connection wiring on the piezoelectric body and electrically connecting the connection wiring to the IDT electrode. Forming the connection wiring includes sequentially forming a lower connection wiring on an upper surface of the piezoelectric body and forming an upper connection wiring over the lower connection wiring. The method further includes forming a reinforcement electrode over the connection wiring that divides the upper connection wiring into first and second upper connection wirings electrically connected to one another by the reinforcement electrode. The reinforcement electrode is formed abutting an upper surface of the lower connection wiring between the first and second upper connection wirings and electrically connected to the lower connection wiring and to the first and second upper connection wirings.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: August 20, 2019
    Assignee: SKYWORKS FILTER SOLUTIONS JAPAN CO., LTD.
    Inventors: Yosuke Hamaoka, Mitsunori Miyanari, Hiroyuki Nakamura, Hidekazu Nakanishi
  • Patent number: 10305445
    Abstract: An elastic wave resonator including a pair of comb-shaped electrodes and a pair of reflector electrodes formed on a piezoelectric substrate. In one example, the pair of comb-shaped electrodes includes first and second overlapping regions in which electrode fingers of the comb-shaped electrodes interdigitate, the second overlapping region being provided on both outside edges of the first overlapping region in an overlapping width direction, an overlapping width of the first overlapping region being greater than an overlapping width of the second overlapping region, the pair of comb-shaped electrodes being configured to excite a first elastic wave in the first overlapping region and to excite a second elastic wave in the second overlapping region, a frequency of the first elastic wave being higher than a frequency of the second elastic wave.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: May 28, 2019
    Assignee: SKYWORKS FILTER SOLUTIONS JAPAN CO., LTD.
    Inventors: Hiroyuki Nakamura, Mitsunori Miyanari
  • Patent number: 10284171
    Abstract: An elastic wave device including a substrate, an interdigital transducer (IDT) electrode provided on an upper surface of the substrate, a first wiring electrode provided on the upper surface of the substrate and connected to the IDT electrode, a dielectric film that does not cover a first region of the first wiring electrode but covers a second region of the first wiring electrode above the substrate, the first wiring electrode including a cutout in the second region, and a second wiring electrode that covers an upper surface of the first wiring electrode in the first region and an upper surface of the dielectric film in the second region above the substrate.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: May 7, 2019
    Assignee: SKYWORKS FILTER SOLUTIONS JAPAN CO., LTD.
    Inventors: Mitsunori Miyanari, Yosuke Hamaoka, Toru Yamaji, Hidekazu Nakanishi, Hiroyuki Nakamura
  • Publication number: 20170244384
    Abstract: An elastic wave resonator including a pair of comb-shaped electrodes and a pair of reflector electrodes formed on a piezoelectric substrate. In one example, the pair of comb-shaped electrodes includes first and second overlapping regions in which electrode fingers of the comb-shaped electrodes interdigitate, the second overlapping region being provided on both outside edges of the first overlapping region in an overlapping width direction, an overlapping width of the first overlapping region being greater than an overlapping width of the second overlapping region, the pair of comb-shaped electrodes being configured to excite a first elastic wave in the first overlapping region and to excite a second elastic wave in the second overlapping region, a frequency of the first elastic wave being higher than a frequency of the second elastic wave.
    Type: Application
    Filed: May 5, 2017
    Publication date: August 24, 2017
    Inventors: Hiroyuki Nakamura, Mitsunori Miyanari
  • Publication number: 20170179921
    Abstract: An elastic wave device including a substrate, an interdigital transducer (IDT) electrode provided on an upper surface of the substrate, a first wiring electrode provided on the upper surface of the substrate and connected to the IDT electrode, a dielectric film that does not cover a first region of the first wiring electrode but covers a second region of the first wiring electrode above the substrate, the first wiring electrode including a cutout in the second region, and a second wiring electrode that covers an upper surface of the first wiring electrode in the first region and an upper surface of the dielectric film in the second region above the substrate.
    Type: Application
    Filed: March 3, 2017
    Publication date: June 22, 2017
    Inventors: Mitsunori Miyanari, Yosuke Hamaoka, Toru Yamaji, Hidekazu Nakanishi, Hiroyuki Nakamura
  • Publication number: 20170170797
    Abstract: Methods and apparatus for reducing electric loss in an elastic wave element. In one example such a method includes forming an IDT electrode on a piezoelectric body, and forming the connection wiring on the piezoelectric body and electrically connecting the connection wiring to the IDT electrode. Forming the connection wiring includes sequentially forming a lower connection wiring on an upper surface of the piezoelectric body and forming an upper connection wiring over the lower connection wiring. The method further includes forming a reinforcement electrode over the connection wiring that divides the upper connection wiring into first and second upper connection wirings electrically connected to one another by the reinforcement electrode. The reinforcement electrode is formed abutting an upper surface of the lower connection wiring between the first and second upper connection wirings and electrically connected to the lower connection wiring and to the first and second upper connection wirings.
    Type: Application
    Filed: February 21, 2017
    Publication date: June 15, 2017
    Inventors: Yosuke Hamaoka, Mitsunori Miyanari, Hiroyuki Nakamura, Hidekazu Nakanishi
  • Patent number: 9647635
    Abstract: An elastic wave resonator including comb-shaped electrodes and reflector electrodes formed on a piezoelectric substrate. In one example, an overlapping portion between the comb-shaped electrodes includes a first overlapping region and second overlapping regions. The second overlapping regions can be provided on both outside edges of the first overlapping region. In one example, the overlapping width of the first overlapping region is greater than the overlapping width of the second overlapping region, and the electrode finger pitch in the second overlapping region is greater than the electrode finger pitch in the first overlapping region.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: May 9, 2017
    Assignee: SKYWORKS FILTER SOLUTIONS JAPAN CO., LTD.
    Inventors: Hiroyuki Nakamura, Mitsunori Miyanari
  • Patent number: 9628047
    Abstract: An elastic wave device including a substrate, an interdigital transducer (IDT) electrode provided on an upper surface of the substrate, a first wiring electrode provided on the upper surface of the substrate and connected to the IDT electrode, a dielectric film that does not cover a first region of the first wiring electrode but covers a second region of the first wiring electrode above the substrate, the first wiring electrode including a cutout in the second region, and a second wiring electrode that covers an upper surface of the first wiring electrode in the first region and an upper surface of the dielectric film in the second region above the substrate.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: April 18, 2017
    Assignee: SKYWORKS FILTER SOLUTIONS JAPAN CO., LTD.
    Inventors: Mitsunori Miyanari, Yosuke Hamaoka, Toru Yamaji, Hidekazu Nakanishi, Hiroyuki Nakamura
  • Patent number: 9614495
    Abstract: Methods and apparatus for reducing electric loss in an elastic wave element. In one example, the elastic wave element includes a piezoelectric body having a upper surface, an interdigital transducer (IDT) electrode disposed on the piezoelectric body, a connection wiring disposed on the piezoelectric body and electrically connected to the IDT electrode, the connection wiring having a lower connection wiring and an upper connection wiring provided above the lower connection wiring, and a reinforcement electrode provided above the connection wiring, the reinforcement electrode being in contact with and electrically connected to the lower connection wiring.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: April 4, 2017
    Assignee: SKYWORKS FILTER SOLUTIONS JAPAN CO., LTD.
    Inventors: Yosuke Hamaoka, Mitsunori Miyanari, Hiroyuki Nakamura, Hidekazu Nakanishi
  • Publication number: 20170040969
    Abstract: An acoustic wave device comprises an IDT electrode disposed above an upper surface of a piezoelectric substrate and includes a plurality of electrode fingers configured to excite a main acoustic wave. A first dielectric film made of an oxide is disposed above the upper surface of the piezoelectric substrate and covers the plurality of electrode fingers. A second dielectric film made of non-oxide is disposed between the first dielectric film and each of the plurality of electrode fingers. A third dielectric film is disposed between the piezoelectric substrate and the plurality of electrode fingers. A speed of a transverse wave propagating through the third dielectric film is greater than a speed of the main acoustic wave propagating through the piezoelectric substrate. The third dielectric film contacts the first dielectric film between adjacent electrode fingers of the plurality of electrode fingers.
    Type: Application
    Filed: October 24, 2016
    Publication date: February 9, 2017
    Inventors: Tomohiro Iwasaki, Hiroyuki Nakamura, Toru Yamaji, Mitsunori Miyanari, Masahiro Yasumi, Shoji Okamoto
  • Patent number: 9496846
    Abstract: An acoustic wave device includes a piezoelectric substrate, an IDT electrode including plural electrode fingers disposed above an upper surface of the piezoelectric substrate, a first dielectric film made of oxide disposed above the upper surface of the substrate for covering the electrode fingers, and a second dielectric film made of non-oxide disposed on upper surfaces of the electrode fingers and between the first dielectric film and each of the electrode fingers. The first dielectric film contacts the upper surface of the piezoelectric substrate at a position between electrode fingers out of the plural electrode fingers adjacent to each other. The acoustic wave device prevents the electrode fingers of the IDT electrode from corrosion.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: November 15, 2016
    Assignee: SKYWORKS FILTER SOLUTIONS JAPAN CO., LTD.
    Inventors: Tomohiro Iwasaki, Hiroyuki Nakamura, Toru Yamaji, Mitsunori Miyanari, Masahiro Yasumi, Shoji Okamoto
  • Publication number: 20160006410
    Abstract: An elastic wave device including a substrate, an interdigital transducer (IDT) electrode provided on an upper surface of the substrate, a first wiring electrode provided on the upper surface of the substrate and connected to the IDT electrode, a dielectric film that does not cover a first region of the first wiring electrode but covers a second region of the first wiring electrode above the substrate, the first wiring electrode including a cutout in the second region, and a second wiring electrode that covers an upper surface of the first wiring electrode in the first region and an upper surface of the dielectric film in the second region above the substrate.
    Type: Application
    Filed: July 1, 2015
    Publication date: January 7, 2016
    Inventors: Mitsunori Miyanari, Yosuke Hamaoka, Toru Yamaji, Hidekazu Nakanishi, Hiroyuki Nakamura
  • Publication number: 20150288346
    Abstract: An elastic wave resonator including comb-shaped electrodes and reflector electrodes formed on a piezoelectric substrate. In one example, an overlapping portion between the comb-shaped electrodes includes a first overlapping region and second overlapping regions. The second overlapping regions can be provided on both outside edges of the first overlapping region. In one example, the overlapping width of the first overlapping region is greater than the overlapping width of the second overlapping region, and the electrode finger pitch in the second overlapping region is greater than the electrode finger pitch in the first overlapping region.
    Type: Application
    Filed: April 7, 2015
    Publication date: October 8, 2015
    Inventors: Hiroyuki Nakamura, Mitsunori Miyanari
  • Publication number: 20150236238
    Abstract: Methods and apparatus for reducing electric loss in an elastic wave element. In one example, the elastic wave element includes a piezoelectric body having a upper surface, an interdigital transducer (IDT) electrode disposed on the piezoelectric body, a connection wiring disposed on the piezoelectric body and electrically connected to the IDT electrode, the connection wiring having a lower connection wiring and an upper connection wiring provided above the lower connection wiring, and a reinforcement electrode provided above the connection wiring, the reinforcement electrode being in contact with and electrically connected to the lower connection wiring.
    Type: Application
    Filed: February 18, 2015
    Publication date: August 20, 2015
    Inventors: Yosuke Hamaoka, Mitsunori Miyanari, Hiroyuki Nakamura, Hidekazu Nakanishi
  • Publication number: 20140232239
    Abstract: An acoustic wave device includes a piezoelectric substrate, an IDT electrode including plural electrode fingers disposed above an upper surface of the piezoelectric substrate, a first dielectric film made of oxide disposed above the upper surface of the substrate for covering the electrode fingers, and a second dielectric film made of non-oxide disposed on upper surfaces of the electrode fingers and between the first dielectric film and each of the electrode fingers. The first dielectric film contacts the upper surface of the piezoelectric substrate at a position between electrode fingers out of the plural electrode fingers adjacent to each other. The acoustic wave device prevents the electrode fingers of the IDT electrode from corrosion.
    Type: Application
    Filed: February 10, 2014
    Publication date: August 21, 2014
    Applicant: Panasonic Corporation
    Inventors: TOMOHIRO IWASAKI, HIROYUKI NAKAMURA, TORU YAMAJI, MITSUNORI MIYANARI, MASAHIRO YASUMI, SHOJI OKAMOTO