Patents by Inventor Keisuke Hirabayashi

Keisuke Hirabayashi 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: 11958600
    Abstract: A roadable vehicle includes main wings, a fuselage, a sliding door on a lateral side surface of the fuselage, and hinge mechanisms. The hinge mechanisms connect the main wings to the fuselage. The hinge mechanisms allow the main wings to turn between a first state where the main wings are folded beside the fuselage and a second state where the main wings are opened on the lateral sides of the fuselage. In the first state, the sliding door is opened and closed by sliding the sliding door in a space formed between one of the main wings and the fuselage while an outer side of the fuselage and an inner side of the sliding door facing each other.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: April 16, 2024
    Assignee: SUBARU CORPORATION
    Inventors: Daisuke Hirabayashi, Keisuke Tajiri, Yutaka Sasaki
  • Patent number: 11953347
    Abstract: A position detection device includes a first position detector, a second position detector, and a signal generator. The first position detector includes a first magnetic field generation unit, a second magnetic field generation unit, and a first magnetic sensor. The second position detector includes a third magnetic field generation unit, a fourth magnetic field generation unit, and a second magnetic sensor. The positions of the second and fourth magnetic field generation units vary in response to variations in a detection-target position. The signal generator generates a position detection signal, which is the sum of a first detection signal generated by the first magnetic sensor and a second detection signal generated by the second magnetic sensor. Each of the first and second position detectors includes a bias magnetic field generation unit.
    Type: Grant
    Filed: April 27, 2023
    Date of Patent: April 9, 2024
    Assignee: TDK CORPORATION
    Inventors: Tsuyoshi Umehara, Hayato Miyashita, Keisuke Uchida, Hiraku Hirabayashi
  • Patent number: 11918986
    Abstract: There is provided an exhaust gas purification device that shows a high HC removal performance under a condition in which a rich air-fuel mixture is introduced. The exhaust gas purification device includes a substrate, a first catalyst layer, and a second catalyst layer. The substrate includes an upstream end and a downstream end. The first catalyst layer is disposed on a surface of the partition wall in an upstream region including the upstream end of the substrate. The second catalyst layer is disposed inside the partition wall in a downstream region including the downstream end of the substrate. The first catalyst layer contains a first metal catalyst and alumina-zirconia composite oxide. The second catalyst layer contains a second metal catalyst.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: March 5, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATION
    Inventors: Koji Sugiura, Takeshi Hirabayashi, Akemi Satou, Keisuke Murawaki, Takaya Ota, Masatoshi Ikebe, Kohei Takasaki, Takeshi Morishima
  • Patent number: 11914008
    Abstract: The magnetic sensor can prevent an increase of a positional detection error of a subject/object even in the case of applying an external magnetic field with a magnetic field intensity exceeding a predetermined range. A magnetic sensor is equipped with a magnetoresistive effect element (MR element) 11 that can detect an external magnetic field and a soft magnetic body shield 12. The soft magnetic body shield(s) 12 are/is positioned above and/or below the MR element 11 in a side view, and the size of the MR element 11 is physically included within a perimeter of the soft magnetic body shield 12.
    Type: Grant
    Filed: April 5, 2023
    Date of Patent: February 27, 2024
    Assignee: TDK Corporation
    Inventors: Keisuke Uchida, Hiraku Hirabayashi
  • Patent number: 8365127
    Abstract: A semiconductor device, includes a first wiring pattern in a first region, a second wiring pattern in a second region, and at least one first dummy pattern formed in the first region and at least one second dummy pattern formed in the second region. A total area of the at least one first dummy pattern is the same as a total area of the at least one second dummy pattern and a total length of pattern periphery of the at least one second dummy pattern is longer than a total length of pattern periphery of the at least one first dummy pattern. The first region and the second region have same area.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: January 29, 2013
    Assignee: Renesas Electronics Corporation
    Inventor: Keisuke Hirabayashi
  • Publication number: 20120199979
    Abstract: A semiconductor device, includes a first wiring pattern in a first region, a second wiring pattern in a second region, and at least one first dummy pattern formed in the first region and at least one second dummy pattern formed in the second region. A total area of the at least one first dummy pattern is the same as a total area of the at least one second dummy pattern and a total length of pattern periphery of the at least one second dummy pattern is longer than a total length of pattern periphery of the at least one first dummy pattern. The first region and the second region have same area.
    Type: Application
    Filed: April 18, 2012
    Publication date: August 9, 2012
    Applicant: Renesas Electronics Corporation
    Inventor: Keisuke HIRABAYASHI
  • Patent number: 8181142
    Abstract: A semiconductor device, includes a first wiring pattern in a first region, a second wiring pattern in a second region, and at least one first dummy pattern formed in the first region and at least one second dummy pattern formed in the second region. A total area of the at least one first dummy pattern is the same as a total area of the at least one second dummy pattern and a total length of pattern periphery of the at least one second dummy pattern is longer than a total length of pattern periphery of the at least one first dummy pattern.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: May 15, 2012
    Assignee: Renesas Electronics Corporation
    Inventor: Keisuke Hirabayashi
  • Patent number: 7900177
    Abstract: A method of placing a dummy pattern in a wiring region includes calculating a density of a wiring pattern in the wiring region and calculating a value of a length of a periphery of the wiring pattern. The dummy pattern is then set such that a total of the pattern density and the value of the length of the periphery of the wiring pattern and the dummy pattern in the wiring region falls within specified ranges in the wiring region.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: March 1, 2011
    Assignee: Renesas Electronics Corporation
    Inventor: Keisuke Hirabayashi
  • Publication number: 20100327467
    Abstract: A semiconductor device, includes a first wiring pattern in a first region, a second wiring pattern in a second region, and at least one first dummy pattern formed in the first region and at least one second dummy pattern formed in the second region. A total area of the at least one first dummy pattern is the same as a total area of the at least one second dummy pattern and a total length of pattern periphery of the at least one second dummy pattern is longer than a total length of pattern periphery of the at least one first dummy pattern.
    Type: Application
    Filed: September 3, 2010
    Publication date: December 30, 2010
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Keisuke Hirabayashi
  • Publication number: 20100131915
    Abstract: Provided is a method of predicting a manufacturing defect part of a semiconductor device, which results from optical pattern displacement in an exposure process. The prediction method includes: performing repetitive processing a plurality of times, the repetitive processing including: a site generating step of setting a site at a predetermined position of a layout pattern; an edge shifting step of shifting an edge of the layout pattern according to a predetermined rule; an image forming position calculating step of calculating an image forming position corresponding to the shifted edge on the site; and an error check step of storing error information between the image forming position on the site and the edge of the layout pattern; and extracting, based on the error information, from the first layout data, apart in which the image forming position is unstable, and predicting the extracted part as a hot spot.
    Type: Application
    Filed: September 15, 2009
    Publication date: May 27, 2010
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Keisuke Hirabayashi
  • Patent number: 7692257
    Abstract: A semiconductor element, a semiconductor sensor, and a semiconductor memory element are provided, in which an MFMIS structure having a lower electrode and an integrated circuit can be integrated. An epitaxially grown ?-Al2O3 single crystal film (2) is disposed on a semiconductor single crystal substrate (1), and an epitaxial single crystal Pt thin film (3) is disposed on the ?-Al2O3 single crystal film (2).
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: April 6, 2010
    Assignee: National University Corporation Toyohashi University of Technology
    Inventors: Makoto Ishida, Kazuaki Sawada, Daisuke Akai, Mikako Yokawa, Keisuke Hirabayashi
  • Publication number: 20090278212
    Abstract: An integrated device including a sensor and the like formed on a ?-alumina layer epitaxially grown on a silicon substrate is provided at low cost. This integrated device includes: a silicon substrate; a first function area formed on a ?-alumina film epitaxially grown on a portion of the silicon substrate; a second function area formed on an area of the silicon substrate other than an area where the ?-alumina film is grown; and wiring means for connecting the first function area with the second function area.
    Type: Application
    Filed: June 2, 2006
    Publication date: November 12, 2009
    Inventors: Makoto Ishida, Kazuaki Sawada, Daisuke Akai, Keisuke Hirabayashi
  • Publication number: 20080179754
    Abstract: A method of placing a dummy pattern in a wiring region includes calculating a density of a wiring pattern in the wiring region and calculating a value of a length of a periphery of the wiring pattern. The dummy pattern is then set such that a total of the pattern density and the value of the length of the periphery of the wiring pattern and the dummy pattern in the wiring region falls within specified ranges in the wiring region.
    Type: Application
    Filed: January 10, 2008
    Publication date: July 31, 2008
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Keisuke Hirabayashi
  • Publication number: 20060278907
    Abstract: A semiconductor element, a semiconductor sensor, and a semiconductor memory element are provided, in which an MFMIS structure having a lower electrode and an integrated circuit can be integrated. An epitaxially grown ?-Al2O3 single crystal film (2) is disposed on a semiconductor single crystal substrate (1), and an epitaxial single crystal Pt thin film (3) is disposed on the ?-Al2O3 single crystal film (2).
    Type: Application
    Filed: March 5, 2004
    Publication date: December 14, 2006
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Makoto Ishida, Kazuaki Sawada, Daisuke Akai, Mikako Yokawa, Keisuke Hirabayashi