Patents by Inventor Yasuhiro Shimizu

Yasuhiro Shimizu 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: 10274523
    Abstract: A current sensor including first and second current sensor units. Conductors of the first and second current sensor units extend in a length direction and are parallel or substantially parallel to each other with a space therebetween. An arch-shaped portion and an inverted arch-shaped portion of the first current sensor unit are at different positions in the length direction from positions of an arch-shaped portion and an inverted arch-shaped portion of the second current sensor unit. When seen in a width direction perpendicular or substantially perpendicular to the length direction, first and second magnetic sensor elements of the first current sensor unit are outside an opening of the second current sensor unit and first and second magnetic sensor elements of the second current sensor unit are outside an opening of the first current sensor unit.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: April 30, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yasuhiro Shimizu
  • Patent number: 10215780
    Abstract: A current sensor includes a primary conductor through which a current to be measured flows and a first magnetic sensor and a second magnetic sensor that each detects an intensity of a magnetic field generated by the current flowing through the primary conductor. The current is diverted into two flow channels and flows through the primary conductor in a length direction of the primary conductor. The primary conductor includes an arch portion that extends in the length direction while bending to project in one thickness direction of the primary conductor, and defines one of the two flow channels. The first magnetic sensor is disposed on an inner side of the arch portion and is located on a side of an undersurface of the primary conductor. The second magnetic sensor is located on a side of a surface of a portion of the primary conductor which defines the other one of the two flow channels.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: February 26, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yasuhiro Shimizu
  • Publication number: 20190041432
    Abstract: An electric current sensor includes at least one permanent magnet and at least one magnetosensitive body that detects a to-be-measured magnetic field in a state in which a bias magnetic field is applied thereto from the permanent magnet. The permanent magnet is shaped such that the value of a permeance coefficient obtained when taking the application direction of the to-be-measured magnetic field as the magnetization direction is less than or equal to about 1.5 times the value of the permeance coefficient in a magnetization direction of the permanent magnet.
    Type: Application
    Filed: October 5, 2018
    Publication date: February 7, 2019
    Inventor: Yasuhiro SHIMIZU
  • Publication number: 20190018046
    Abstract: A current sensor includes a conductor through which current to be measured flows and which has dimensions in a length direction, a width direction, and a height direction, and first and second magnetic sensors that detect the strength of a magnetic field generated by the current. Each of the first and second magnetic sensors is positioned in an area between first and second conductor portions in the width direction and an area extending from one end to the other end in the height direction of the first and second conductor portions.
    Type: Application
    Filed: September 20, 2018
    Publication date: January 17, 2019
    Inventor: Yasuhiro SHIMIZU
  • Patent number: 10161971
    Abstract: A current sensor includes a primary conductor in which a current flows, a magnetic sensor that detects a strength of a magnetic field produced by the current, and a magnetic body that surrounds a periphery of the primary conductor and the magnetic sensor. Output characteristics of the magnetic sensor include a low-output region in which a measured voltage value lower than a virtual output voltage proportional to a value of the current is outputted. Magnetization characteristics of the magnetic body include a magnetic saturation region in which permeability decreases in ranges where an absolute value of the current is no less than a threshold. An output of the magnetic sensor is corrected such that the measured voltage value increases as a result of a magnetic field leaking from the magnetic body that is within the magnetic saturation region acting on the magnetic sensor that is in the low-output region.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: December 25, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yasuhiro Shimizu, Takashi Kawanami
  • Patent number: 10117623
    Abstract: A biometric authentication device collates pre-registered biometric data for authentication with biometric data acquired during authentication. An imaging section images biometric data acquired by penetration through the finger by near-infrared light from a near-infrared light irradiating section. A control section acquires the biometric data acquired by the imaging section. A visible light irradiating section irradiates a finger inserting section where the finger is inserted with visible light. The visible light irradiating section starts irradiation of the visible light before the imaging section acquires the biometric data.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: November 6, 2018
    Assignee: Hitachi Industry & Control Solutions, Ltd.
    Inventors: Kazuki Shimano, Yasuhiro Shimizu
  • Patent number: 10111348
    Abstract: An electronic component package includes a carrier tape in which a plurality of substantially recess-shaped electronic component holding portions are provided in an elongated, narrow base material configured of a resin so that the electronic component holding portions include openings on one surface of the base material and bulge outward on the other surface of the base material, and a cover tape affixed to the one surface of the carrier tape so as to cover the openings in the respective electronic component holding portions. A thickness dimension of a base portion of the electronic component holding portion is smaller than a thickness dimension of the base material.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: October 23, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yasuhiro Shimizu, Kiyoyuki Nakagawa
  • Patent number: 10074352
    Abstract: An ultrasonic wave generation apparatus that includes an ultrasonic wave generation element having an inner space formed by bonding first and second vibrators so as to close off a through-hole or a groove provided in a frame body, and a connecting member that is bonded to the second vibrator supports the ultrasonic wave generation element and is electrically connected to at least one of the first and second vibrators. A ventilation hole that opens into a first side surface of the frame body and that allows the inner space to communicate with the exterior is provided in the frame body. When a direction parallel to the first main surface or the second main surface is a lengthwise direction, an outer side end portion of the ventilation hole in the lengthwise direction and an inner side end portion in the lengthwise direction of the connecting member do not match.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: September 11, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yasuhiro Shimizu, Akihiro Mitani
  • Patent number: 9939404
    Abstract: A CO sensor includes a solid electrolyte substrate, a sensing electrode, and a reference electrode, and outputs electromotive forces in accordance with CO concentrations. The sensing electrode and the reference electrode are provided on the same surface of the solid electrolyte substrate. The sensing electrode contains a metal oxide such as Bi2O3 that generates a positive electromotive force response when coming into contact with CO. The reference electrode contains a metal oxide such as CeO2 that generates a negative electromotive force response when coming into contact with CO.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: April 10, 2018
    Assignees: Figaro Engineering Inc., Nagasaki University
    Inventors: Yasuhiro Shimizu, Takeo Hyodo, Taro Ueda, Hirotaka Takeda, Kai Kamada
  • Publication number: 20180086877
    Abstract: The present invention provides: a copolymer (A) which is a copolymer obtained by copolymerizing one or plural cycloolefin monomers and one or plural acyclic olefin monomers, or by copolymerizing two or more cycloolefin monomers, wherein a glass transition temperature (Tg) is 100° C. or higher, a refractive index is 1.545 or higher, and an Abbe's number is 50 or larger; a polymer (B) selected from: a ring-opening homopolymer obtained by ring-opening polymerization of only a monomer represented by formula (I), a ring-opening copolymer obtained by ring-opening copolymerization of the monomer represented by formula (I) and a monomer capable of ring-opening copolymerization with the monomer represented by formula (I), a hydrogenated product of the ring-opening homopolymer and a hydrogenated product of the ring-opening copolymer; a forming material containing the copolymer (A) or the polymer (B); and a resin formed article obtained by forming the forming material.
    Type: Application
    Filed: April 5, 2016
    Publication date: March 29, 2018
    Applicant: ZEON CORPORATION
    Inventors: Kensaku FUJII, Takashi HOUKAWA, Takuya KOMATSUBARA, Yasuhiro SHIMIZU
  • Publication number: 20180045762
    Abstract: Conductors of first and second current sensor units are parallel or substantially parallel to each other with a space therebetween. An arch-shaped portion and an inverted arch-shaped portion of the first current sensor unit are at different positions from positions of an arch-shaped portion and an inverted arch-shaped portion of the second current sensor unit. When seen in a width direction, first and second magnetic sensor elements of the first current sensor unit are outside an opening of the second current sensor unit and first and second magnetic sensor elements of the second current sensor unit are outside an opening of the first current sensor unit.
    Type: Application
    Filed: October 26, 2017
    Publication date: February 15, 2018
    Inventor: Yasuhiro SHIMIZU
  • Publication number: 20180038898
    Abstract: A current sensor includes a conductor through which a current to be measured flows, and first and second magnetic sensor elements that detect an intensity of a magnetic field generated by the current. The conductor includes first and second flow portions through which the current flows after the current is shunted. The first and second magnetic sensor elements are provided between the first and second flow portions in a thickness direction of the conductor. At least a portion of each of the first and second magnetic sensor elements is provided between the first and second flow portions in a width direction of the conductor. In the width direction of the conductor, a distance between a center portion of the first magnetic sensor element and a center portion of the second magnetic sensor element is less than or equal to a distance between the first flow portion and the second flow portion.
    Type: Application
    Filed: October 6, 2017
    Publication date: February 8, 2018
    Inventor: Yasuhiro SHIMIZU
  • Patent number: 9863469
    Abstract: In a bearing preloading device in which a compression coil spring is used, a hole is defined in a bearing race or in a separate member axially opposed to the bearing race. The hole has an inner periphery constituted by a threaded portion connected to a bottom surface of the hole, and a shallow hole portion connected to an edge of the hole. An inner diameter of the shallow hole portion is larger than an inner diameter of the threaded portion.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: January 9, 2018
    Assignee: NTN CORPORATION
    Inventor: Yasuhiro Shimizu
  • Publication number: 20180003742
    Abstract: A current sensor includes a primary conductor through which a current to be measured flows and a first magnetic sensor and a second magnetic sensor that each detects an intensity of a magnetic field generated by the current flowing through the primary conductor. The current is diverted into two flow channels and flows through the primary conductor in a length direction of the primary conductor. The primary conductor includes an arch portion that extends in the length direction while bending to project in one thickness direction of the primary conductor, and defines one of the two flow channels. The first magnetic sensor is disposed on an inner side of the arch portion and is located on a side of an undersurface of the primary conductor. The second magnetic sensor is located on a side of a surface of a portion of the primary conductor which defines the other one of the two flow channels.
    Type: Application
    Filed: September 20, 2017
    Publication date: January 4, 2018
    Inventor: Yasuhiro SHIMIZU
  • Publication number: 20170242058
    Abstract: A current sensor includes a substrate including a through-hole and at least one groove around the through-hole, a primary conductor extending into the through-hole and through the substrate, and through which a current to be measured flows, at least one magnetic sensor that is mounted on a first surface of the substrate and detects a strength of a magnetic field generated by the current to be measured flowing through the primary conductor, and at least one magnetic body surrounding the primary conductor and including a portion extending in the at least one groove to be fixed to the substrate.
    Type: Application
    Filed: May 9, 2017
    Publication date: August 24, 2017
    Inventors: Takashi KAWANAMI, Yasuhiro SHIMIZU
  • Publication number: 20170227489
    Abstract: A CO sensor includes a solid electrolyte substrate, a sensing electrode, and a reference electrode, and outputs electromotive forces in accordance with CO concentrations. The sensing electrode and the reference electrode are provided on the same surface of the solid electrolyte substrate. The sensing electrode contains a metal oxide such as Bi2O3 that generates a positive electromotive force response when coming into contact with CO. The reference electrode contains a metal oxide such as CeO2 that generates a negative electromotive force response when coming into contact with CO.
    Type: Application
    Filed: February 5, 2016
    Publication date: August 10, 2017
    Inventors: Yasuhiro Shimizu, Takeo Hyodo, Taro Ueda, Hirotaka Takeda, Kai Kamada
  • Publication number: 20170219634
    Abstract: A current sensor includes a primary conductor in which a current to be measured flows, at least one magnetic sensor that detects a strength of a magnetic field produced by the current flowing in the primary conductor, and a magnetic body that surrounds a periphery of the primary conductor and the magnetic sensor. Output characteristics of the magnetic sensor include a low-output region in which a measured voltage value lower than a virtual output voltage proportional to a value of the current is outputted. Magnetization characteristics of the magnetic body include a magnetic saturation region in which permeability decreases in ranges where an absolute value of the current is no less than a threshold. An output of the magnetic sensor is corrected such that the measured voltage value increases as a result of a magnetic field leaking from the magnetic body that is within the magnetic saturation region acting on the magnetic sensor that is in the low-output region.
    Type: Application
    Filed: April 18, 2017
    Publication date: August 3, 2017
    Inventors: Yasuhiro SHIMIZU, Takashi KAWANAMI
  • Patent number: 9709416
    Abstract: In a living area data generation section, a road link having the number of times of traveling not less than a predetermined number of times is acquired based on travel history data, and a predetermined area including the road link is determined as a living area. In a user model generation section, based on the travel history data, the number of outings is acquired by necessary time for outing, according to whether the destination is in a living area or non-living area, and model data of user's outing pattern is generated. In a search condition determination section, based on the model data, a facility search range is determined, and a ratio between the numbers of facilities to be searched for from the living area and non-living area is determined as a search condition. In a facility search section, search is conducted for facilities conforming to the condition and to be presented.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: July 18, 2017
    Assignee: DENSO CORPORATION
    Inventors: Nobuhiro Mizuno, Yasuhiro Shimizu
  • Patent number: 9635791
    Abstract: Provided is a carrier tape with improved tensile strength and flexural rigidity in a longitudinal direction of a base material, including recesses that can be provided at a narrow pitch in a first surface of the base material, and manufacturable at reduced cost, as well as to provide an apparatus and a method for manufacturing such a carrier tape. A carrier tape of the present invention is constituted by a strip-shaped base material, and includes a plurality of recesses provided in a first surface of the base material and for containing electronic components, a covering unit configured to seal openings of the recesses, and a projection provided on a second surface of the base material along a longitudinal direction of the base material. A length of the projection extends over at least two of the recesses.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: April 25, 2017
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Shogo Tokoi, Yasuhiro Shimizu
  • Patent number: 9556907
    Abstract: Gates (G) are uniformly arranged in a circumferential direction only in a large annular section (2). The gates (G) are equal in number to a number of pockets (4). The gates (G) are arranged only at sites positioned on planes (Pa) passing circumferential centers of the respective pockets (4). Weld lines (W) are thus formed only in the vicinity of the planes (Pa) of a small annular section (1).
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: January 31, 2017
    Assignee: NTN CORPORATION
    Inventor: Yasuhiro Shimizu