Patents by Inventor Kazunori Ishibashi

Kazunori Ishibashi 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: 10840827
    Abstract: A vibration energy harvester includes: a first electrode; and a second electrode that can be displaced relative to the first electrode along a predetermined vibrating direction. At least either of a surface of the first electrode and a surface of the second electrode facing opposite each other is electrically charged. Power is generated as the second electrode becomes displaced causing a change in electrostatic capacitance between the first electrode and the second electrode. A range having included therein at least a vibrational center of the second electrode, over which the electrostatic capacitance remains unchanged even as the second electrode is displaced, is set.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: November 17, 2020
    Assignees: The University of Tokyo, Saginomiya Seisakusho, Inc.
    Inventors: Hiroshi Toshiyoshi, Hiroyuki Fujita, Hisayuki Ashizawa, Hiroyuki Mitsuya, Kazunori Ishibashi
  • Patent number: 10833607
    Abstract: An electret element includes: an Si layer, an SiO2 layer formed at a surface of the Si layer; and an electret formed at the SiO2 layer near an interface of the SiO2 layer and the Si layer.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: November 10, 2020
    Assignees: The University of Tokyo, Saginomiya Seisakusho, Inc.
    Inventors: Hiroyuki Fujita, Gen Hashiguchi, Hisayuki Ashizawa, Hiroyuki Mitsuya, Kazunori Ishibashi
  • Publication number: 20200338608
    Abstract: Regarding each rolling mill, a rolling torque Gi before biting into a downstream stand is stored, the peripheral velocity of a most downstream stand Rn is controlled to be Gn?1=Gn?1* after biting into Rn, and a rolling torque Gn** of Rn after tension is stabilized is stored. After that, the peripheral velocity of a rolling mill Ri is controlled to be Gi=Gi* toward an upstream side, and the peripheral velocity of a rolling mill Rk at a downstream side of the rolling mill Ri is controlled to keep Gk=Gk** (k=i+1 to n) so that a rolling torque of a most upstream rolling mill R1 becomes equal to a stored G1*. Stabilization of material passage and improvement in accuracy of a product dimension are enabled by controlling tension between stands with high accuracy by using a simple control system without using table values or the like by each rolling condition even under a condition where a distance between stands is short.
    Type: Application
    Filed: December 27, 2018
    Publication date: October 29, 2020
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Kazunori SEKI, Hiroyuki ISHIBASHI
  • Patent number: 10511914
    Abstract: An electret element includes: an electret film that contains silicon oxide; and a protective film formed over the electret film and constituted of aluminum oxide deposited through an atomic layer deposition method.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: December 17, 2019
    Assignees: National University Corporation Shizuoka University, Saginomiya Seishakusho, Inc.
    Inventors: Gen Hashiguchi, Yuki Nishimori, Shinichi Arioka, Masato Suzuki, Kazunori Ishibashi
  • Patent number: 10405103
    Abstract: An electret element includes: an electret film that contains silicon oxide; and a protective film formed over the electret film and constituted of aluminum oxide deposited through an atomic layer deposition method.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: September 3, 2019
    Assignees: National University Corporation Shizuoka University, Saginomiya Seisakusho, Inc.
    Inventors: Gen Hashiguchi, Yuki Nishimori, Shinichi Arioka, Masato Suzuki, Kazunori Ishibashi
  • Patent number: 10352808
    Abstract: Provided is a pressure detection unit in which a waterproof property can be improved. In a pressure sensor, a sealing-resin portion is joined to an outside side surface of an element main body made of stainless steel, aluminum, or nickel such that the sealing-resin portion surrounds a plurality of lead pins. In the pressure sensor, a roughened annular surface portion is provided at a region where the sealing-resin portion is joined on an upper end surface of the element main body so as to be disposed in a manner to partition an external peripheral edge and an internal peripheral edge arranged at the outside side surface of an element main body in the sealing-resin portion.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: July 16, 2019
    Assignee: KABUSHIKI KAISHA SAGINOMIYA SEISAKUSHO
    Inventors: Takuro Ishikawa, Kazuya Takimoto, Kazunori Ishibashi, Hideaki Koga, Takahiro Kobayashi
  • Patent number: 10340818
    Abstract: An actuator includes: an electrostatic actuation mechanism including a stationary electrode and a movable electrode; a first movable part driven by the electrostatic actuation mechanism; a first elastic support part that elastically supports the first movable part; an electret formed in at least one of the stationary electrode and the movable electrode; and a drive control unit that controls application of voltage to the electrostatic actuation mechanism. In the actuator a plurality of stable states are set in which the first movable part is positioned at a stable position at which an electrostatic force generated by the electret matches with an elastic force exerted by the first elastic support part or at a stable position near such stable position. By applying a voltage to the electrostatic actuation mechanism, the first movable part may be displaced from any stable position to another stable position.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: July 2, 2019
    Assignees: National University Corporation Shizuoka University, OMRON Corporation, KABUSHIKI KAISHA SAGINOMIYA SEISAKUSHO
    Inventors: Masato Suzuki, Akito Mori, Gen Hashiguchi, Tatsuhiko Sugiyama, Hiroshi Imamoto, Masatoshi Oba, Hiroyuki Mitsuya, Hisayuki Ashizawa, Kazunori Ishibashi
  • Publication number: 20190058420
    Abstract: A vibration energy harvester includes: a first electrode; and a second electrode that can be displaced relative to the first electrode along a predetermined vibrating direction. At least either of a surface of the first electrode and a surface of the second electrode facing opposite each other is electrically charged. Power is generated as the second electrode becomes displaced causing a change in electrostatic capacitance between the first electrode and the second electrode. A range having included therein at least a vibrational center of the second electrode, over which the electrostatic capacitance remains unchanged even as the second electrode is displaced, is set.
    Type: Application
    Filed: September 27, 2016
    Publication date: February 21, 2019
    Inventors: Hiroshi TOSHIYOSHI, Hiroyuki FUJITA, Hisayuki ASHIZAWA, Hiroyuki MITSUYA, Kazunori ISHIBASHI
  • Publication number: 20190014419
    Abstract: An electret element includes: an electret film that contains silicon oxide; and a protective film formed over the electret film and constituted of aluminum oxide deposited through an atomic layer deposition method.
    Type: Application
    Filed: September 13, 2018
    Publication date: January 10, 2019
    Inventors: Gen HASHIGUCHI, Yuki NISHIMORI, Shinichi ARIOKA, Masato SUZUKI, Kazunori ISHIBASHI
  • Publication number: 20180041140
    Abstract: An electret element includes: an Si layer, an SiO2 layer formed at a surface of the Si layer; and an electret formed at the SiO2 layer near an interface of the SiO2 layer and the Si layer.
    Type: Application
    Filed: February 9, 2016
    Publication date: February 8, 2018
    Inventors: Hiroyuki FUJITA, Gen HASHIGUCHI, Hisayuki ASHIZAWA, Hiroyuki MITSUYA, Kazunori ISHIBASHI
  • Publication number: 20170318394
    Abstract: An electret element includes: an electret film that contains silicon oxide; and a protective film formed over the electret film and constituted of aluminum oxide deposited through an atomic layer deposition method.
    Type: Application
    Filed: October 14, 2015
    Publication date: November 2, 2017
    Inventors: Gen HASHIGUCHI, Yuki NISHIMORI, Shinichi ARIOKA, Masato SUZUKI, Kazunori ISHIBASHI
  • Publication number: 20160204716
    Abstract: An actuator includes: an electrostatic actuation mechanism including a stationary electrode and a movable electrode; a first movable part driven by the electrostatic actuation mechanism; a first elastic support part that elastically supports the first movable part; an electret formed in at least one of the stationary electrode and the movable electrode; and a drive control unit that controls application of voltage to the electrostatic actuation mechanism. In the actuator a plurality of stable states are set in which the first movable part is positioned at a stable position at which an electrostatic force generated by the electret matches with an elastic force exerted by the first elastic support part or at a stable position near such stable position. By applying a voltage to the electrostatic actuation mechanism, the first movable part may be displaced from any stable position to another stable position.
    Type: Application
    Filed: July 30, 2014
    Publication date: July 14, 2016
    Inventors: Masato SUZUKI, Akito MORI, Gen HASHIGUCHI, Tatsuhiko SUGIYAMA, Hiroshi IMAMOTO, Masatoshi OBA, Hiroyuki MITSUYA, Hisayuki ASHIZAWA, Kazunori ISHIBASHI
  • Publication number: 20160069765
    Abstract: Provided is a pressure detection unit in which a waterproof property can be improved. In a pressure sensor, a sealing-resin portion is joined to an outside side surface of an element main body made of stainless steel, aluminum, or nickel such that the sealing-resin portion surrounds a plurality of lead pins. In the pressure sensor, a roughened annular surface portion is provided at a region where the sealing-resin portion is joined on an upper end surface of the element main body so as to be disposed in a manner to partition an external peripheral edge and an internal peripheral edge arranged at the outside side surface of an element main body in the sealing-resin portion.
    Type: Application
    Filed: December 12, 2013
    Publication date: March 10, 2016
    Inventors: Takuro ISHIKAWA, Kazuya TAKIMOTO, Kazunori ISHIBASHI, Hideaki KOGA, Takahiro KOBAYASHI
  • Patent number: 8120458
    Abstract: A ferrite core includes an end face portion, a pair of outer legs protruding from the end face portion, and a center leg protruding from the end face portion between the pair of outer legs. A width W1 close to one end portion of the center leg in a Y-axis direction perpendicular to a facing direction of the outer legs is smaller than a width W2 close to the other end portion. According to this configuration, a circuit component may be positioned close to the end portion. A transformer includes the ferrite core.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: February 21, 2012
    Assignee: TDK Corporation
    Inventors: Masaaki Iwakura, Kazunori Ishibashi, Mitsuhiro Seki
  • Publication number: 20110187485
    Abstract: A transformer includes a bobbin, terminal electrodes, a core, a primary winding, a secondary winding, and an additional winding. The bobbin is made from an electrically insulating material and has a tubular portion defining an internal space. The tubular portion has an outer peripheral surface providing a first through third sections arrayed side by side in an axial direction of the tubular portion. The terminal electrodes are provided at the bobbin for electrical connection to the windings. The core is inserted into the internal space. The primary winding has an insulating layer and is wound over the first section. The secondary winding has an insulating layer and is wound over the third section. The additional winding is wound over the second section and has an insulation layer whose insulating performance is greater than that of the insulation layer of the primary winding and the secondary winding.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 4, 2011
    Applicant: TDK CORPORATION
    Inventors: Terumasa TOYODA, Hiroshi MAEDA, Toru HONMA, Nobuo KITAJIMA, Kazunori ISHIBASHI
  • Publication number: 20100141368
    Abstract: A ferrite core includes an end face portion, a pair of outer legs protruding from the end face portion, and a center leg protruding from the end face portion between the pair of outer legs. A width W1 close to one end portion of the center leg in a Y-axis direction perpendicular to a facing direction of the outer legs is smaller than a width W2 close to the other end portion. According to this configuration, a circuit component may be positioned close to the end portion. A transformer includes the ferrite core.
    Type: Application
    Filed: February 19, 2010
    Publication date: June 10, 2010
    Applicant: TDK CORPORATION
    Inventors: Masaaki IWAKURA, Kazunori Ishibashi, Mitsuhiro Seki
  • Patent number: 7701320
    Abstract: A ferrite core includes an end face portion, a pair of outer legs protruding from the end face portion, and a center leg protruding from the end face portion between the pair of outer legs. A width W1 close to one end portion of the center leg in a Y-axis direction perpendicular to a facing direction of the outer legs is smaller than a width W2 close to the other end portion. According to this configuration, a circuit component may be positioned close to the end portion. A transformer includes the ferrite core.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: April 20, 2010
    Assignee: TDK Corporation
    Inventors: Masaaki Iwakura, Kazunori Ishibashi, Mitsuhiro Seki
  • Publication number: 20060244561
    Abstract: A ferrite core includes an end face portion, a pair of outer legs protruding from the end face portion, and a center leg protruding from the end face portion between the pair of outer legs.. A width W1 close to one end portion of the center leg in a Y-axis direction perpendicular to a facing direction of the outer legs is smaller than a width W2 close to the other end portion. According to this configuration, a circuit component may be positioned close to the end portion. A transformer includes the ferrite core.
    Type: Application
    Filed: April 25, 2006
    Publication date: November 2, 2006
    Applicant: TDK CORPORATION
    Inventors: Masaaki Iwakura, Kazunori Ishibashi, Mitsuhiro Seki