Patents by Inventor Hiroshi Matsuda

Hiroshi Matsuda 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).

  • Production method for grain-oriented electrical steel sheet and primary recrystallized steel sheet for production of grain-oriented electrical steel sheet
    Patent number: 9953752
    Abstract: A method for producing grain-oriented electrical steel sheets includes subjecting a steel slab to hot rolling to obtain a hot rolled sheet, the steel slab having a composition consisting of, by mass % or mass ppm, C: 0.08% or less, Si: 2.0% to 4.5% and Mn: 0.5% or less, S, Se, and O: less than 50 ppm each, sol.Al: less than 100 ppm, N: 80 ppm or less, and the balance being Fe and incidental impurities, and satisfying the relation of sol.Al (ppm)?N (ppm)×(26.98/14.00)?30 ppm; then subjecting the hot rolled sheet to annealing and rolling to obtain a cold rolled sheet; then subjecting the cold rolled sheet to nitriding treatment, under specific condition, before, during or after primary recrystallization annealing; then applying an annealing separator on the cold rolled sheet; and subjecting the cold rolled sheet to secondary recrystallization annealing.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: April 24, 2018
    Assignee: JFE STEEL CORPORATION
    Inventors: Yukihiro Shingaki, Hiroi Yamaguchi, Yuiko Wakisaka, Hiroshi Matsuda, Takashi Terashima
  • ULTRASONIC DIAGNOSTIC APPARATUS, PROBE HEAD, ULTRASONIC PROBE, ELECTRONIC MACHINE, AND ULTRASONIC DIAGNOSTIC APPARATUS
    Publication number: 20180091235
    Abstract: An ultrasonic measurement apparatus has an ultrasonic transducer device including an ultrasonic element array, a first through n-th first end-side terminal XA1 to XAn provided to a first end side, and a first through n-th second end-side terminal XB1 to XBn provided to a second end side opposing the first end side; a first transmission circuit outputting first drive signals VTA1 to VTAn to the first through n-th first end-side terminals XA1 to XAn; and a second transmission circuit outputting second drive signals VTB1 to VTBn to the first through n-th second end-side terminals XB1 to XBn.
    Type: Application
    Filed: November 20, 2017
    Publication date: March 29, 2018
    Inventor: Hiroshi Matsuda
  • MOUNTING STRUCTURE, ULTRASONIC DEVICE, ULTRASONIC PROBE, ULTRASONIC APPARATUS AND ELECTRONIC APPARATUS
    Publication number: 20180084642
    Abstract: A mounting structure includes a first substrate on which an elastic core section is provided, a conductive film that is provided over the first substrate from an upper part of the core section, and a second substrate on which a wiring portion connected to the conductive film on the core section is provided, in which the conductive film has a notch that partially exposes an end part of a surface of the core section which is in contact with the first substrate.
    Type: Application
    Filed: September 20, 2017
    Publication date: March 22, 2018
    Inventors: Hironori SUZUKI, Hiroshi MATSUDA, Koji OHASHI
  • Production method for grain-oriented electrical steel sheet and primary recrystallized steel sheet for production of grain-oriented electrical steel sheet
    Patent number: 9905343
    Abstract: A method for producing a grain-oriented electrical steel sheets includes subjecting a steel slab to hot rolling to obtain a hot rolled sheet, the steel slab having a specific composition; then subjecting the hot rolled sheet to annealing and rolling to obtain a cold rolled sheet; then subjecting the cold rolled sheet to nitriding treatment with a nitrogen increase of 50 to 1000 ppm, during or after primary recrystallization annealing; then applying an annealing separator on the cold rolled sheet; and setting the staying time in a temperature range of 300 to 800° C. in the secondary recrystallization annealing to 5 to 150 hours.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: February 27, 2018
    Assignee: JFE STEEL CORPORATION
    Inventors: Yukihiro Shingaki, Yasuyuki Hayakawa, Hiroi Yamaguchi, Hiroshi Matsuda, Yuiko Wakisaka
  • MOUNTING STRUCTURE, ULTRASONIC DEVICE, ULTRASONIC PROBE, ULTRASONIC APPARATUS, ELECTRONIC APPARATUS, AND MANUFACTURING METHOD OF MOUNTING STRUCTURE
    Publication number: 20180053888
    Abstract: A mounting structure includes a first substrate which has a first surface on which a functional element is provided, a second substrate that has a second surface facing the first surface, a wiring portion that is provided at a position which is different from a position of the functional element on the first surface, has a third surface facing the second surface, and is electrically connected to the functional element, and a conduction portion that is provided on the second surface, protrudes toward the first surface, and is connected to the third surface so as to be electrically connected to the functional element, in which an area of the third surface is larger than an area of a first end section of the wiring portion on the first substrate side in a plan view which is viewed from a thickness direction of the first substrate and the second substrate.
    Type: Application
    Filed: August 11, 2017
    Publication date: February 22, 2018
    Inventors: Hironori SUZUKI, Hiroshi MATSUDA, Koji OHASHI
  • BICYCLE CONTROLLER AND BICYCLE CONTROLLING METHOD
    Publication number: 20180050761
    Abstract: A bicycle controller and a bicycle controlling method reduces a distance a bicycle travels before a motor is stopped regardless of whether pedaling is stopped in a state where a rotation speed of the crank is high. The bicycle controller includes an electronic control unit that controls a motor, which assists pedaling of a bicycle, based on a manual driving force and angle information related to an angle of a crank of the bicycle. If the crank is rotated by a predetermined angle or greater in a state where the manual driving force is less than or equal to a predetermined threshold value while the motor is driven, then the electronic control unit stops the motor.
    Type: Application
    Filed: August 9, 2017
    Publication date: February 22, 2018
    Inventors: Yasuhiro TSUCHIZAWA, Hiroshi MATSUDA
  • RESISTANCE SPOT WELDING METHOD AND METHOD FOR MANUFACTURING RESISTANCE SPOT WELDED JOINT
    Publication number: 20180043459
    Abstract: A resistance spot welding method of squeezing a predetermined sheet combination by a pair of electrodes and passing a current while applying an electrode force to join the sheet combination includes: performing test welding; and performing actual welding after the test welding, wherein in each of the test welding and the actual welding, a current pattern is divided into two or more steps including a first current passage step and a second current passage step subsequent to the first current passage step, and, in the actual welding, a current that causes no expulsion is selected to perform welding by constant current control in the first current passage step, and adaptive control welding is performed from the subsequent second current passage step onward.
    Type: Application
    Filed: February 16, 2016
    Publication date: February 15, 2018
    Applicant: JFE STEEL CORPORATION
    Inventors: Chikaumi SAWANISHI, Hiroshi MATSUDA, Rinsei IKEDA
  • IMPACT LOAD REDUCTION STRUCTURE
    Publication number: 20180043936
    Abstract: An impact load reduction includes: a crash area that is disposed in a front section of the electrically-powered vehicle and configured to deform at a collision; a battery frame that is disposed rearward of the crash area and fixed to a vehicle body frame of the electrically-powered vehicle, the battery frame being configured to support the battery and be engaged with the vehicle body frame in accordance with an inertia force of the collision to be supported from frontward; a load reduction frame that extends in a front-rear direction on a front side of the battery frame and that is disposed in a substantially same plane as the battery frame, the load reduction frame having lower rigidity than the battery frame; and a load absorber that is disposed between the load reduction frame and the battery frame and that has lower rigidity than the battery frame.
    Type: Application
    Filed: October 24, 2017
    Publication date: February 15, 2018
    Inventors: Takehisa Tsukada, Hiroshi Matsuda
  • BICYCLE CONTROLLER
    Publication number: 20180029666
    Abstract: A bicycle controller controls a motor in accordance with the riding environment of a bicycle. The bicycle controller includes an electronic control unit that is configured to control a motor, which assists pedaling of a bicycle in accordance with a manual driving force. The electronic control unit is further configured to change a response speed of the motor with respect to a change in the manual driving force in accordance with an inclination angle of the bicycle.
    Type: Application
    Filed: July 26, 2017
    Publication date: February 1, 2018
    Inventors: Satoshi SHAHANA, Yasuhiro TSUCHIZAWA, Hiroshi MATSUDA
  • Ultrasonic transducer device, probe, electronic instrument, and ultrasonic diagnostic device
    Patent number: 9868137
    Abstract: An ultrasonic transducer device includes a base, a plurality of piezoelectric elements, a conductive body and an insulating film. The base has a plurality of vibrating film portions arranged in an array pattern. The piezoelectric elements are respectively disposed on the vibrating film portions. The conductive body is disposed on the base, and arranged inside and outside of an area corresponding to each of the vibrating film portions in a plan view as viewed along a thickness direction of the base. The insulating film is disposed on the conductive body only at outside of the area corresponding to each of the vibrating film portions in the plan view.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: January 16, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Kanechika Kiyose, Hironori Suzuki, Hiroshi Matsuda
  • BICYCLE CONTROLLER
    Publication number: 20170355420
    Abstract: A bicycle controller includes an electronic control unit controlling output of a motor that assists in propelling of a bicycle based on a manual driving force input to the bicycle. The electronic control unit further configured to control the motor in any one of operation modes including first, second and another operation modes, which control the output of the motor based on the manual driving force. The other operation mode excludes the first and second operation modes. In the first operation mode, the upper limit of output torque of the motor is a first value. In the second operation mode, the upper limit of output torque of the motor is a second value, which is 1.5 times or more than the first value. In the other operation mode, the upper limit of the output torque of the motor is the first value or less, or the second value or greater.
    Type: Application
    Filed: June 12, 2017
    Publication date: December 14, 2017
    Inventors: Yasuhiro TSUCHIZAWA, Hiroshi MATSUDA, Kazuhiro FUJII, Satoshi SHAHANA
  • Bicycle control device and bicycle control system
    Patent number: 9840305
    Abstract: A bicycle control device comprises a seat information generator and an assist controller. The seat information generator is configured to generate seat information. The assist controller is configured to control an assist actuator to assist a driving force of a bicycle based on the seat information.
    Type: Grant
    Filed: May 30, 2016
    Date of Patent: December 12, 2017
    Assignee: SHIMANO INC.
    Inventors: Yasuhiro Tsuchizawa, Hiroshi Matsuda
  • STEEL SHEET ASSEMBLY, METHOD OF MANUFACTURING STEEL SHEET ASSEMBLY, AND SPOT WELDING PROCESS
    Publication number: 20170348790
    Abstract: A steel sheet assembly includes a plurality of lapped steel sheets which have a tensile strength of 1,470 MPa or less and a thickness of 0.3 mm to 5.0 mm, the steel sheet assembly being formed by applying, in advance, an adhesive and a carbon-supplying agent to a surface of either or both of the steel sheets to be lapped and then welding the steel sheets. A weld of the assembly has a nugget diameter of 2.8?t (mm) or more, where t (mm) denotes the thickness of a thinner one of the steel sheets on both sides of a weld interface, and the amount of C is increased by 0.02 % by mass or more as compared to the steel sheets before being applied with the adhesive and the carbon-supplying agent.
    Type: Application
    Filed: January 22, 2016
    Publication date: December 7, 2017
    Inventors: Hiroshi Matsuda, Yasuaki Okita, Muneo Matsushita, Rinsei Ikeda, Kenji Oi
  • BICYCLE CONTROL DEVICE AND BICYCLE CONTROL SYSTEM
    Publication number: 20170341705
    Abstract: A bicycle control device comprises a seat information generator and an assist controller. The seat information generator is configured to generate seat information. The assist controller is configured to control an assist actuator to assist a driving force of a bicycle based on the seat information.
    Type: Application
    Filed: May 30, 2016
    Publication date: November 30, 2017
    Applicant: SHIMANO INC.
    Inventors: Yasuhiro TSUCHIZAWA, Hiroshi MATSUDA
  • Impact load reduction structure
    Patent number: 9821850
    Abstract: An impact load reduction structure includes a battery frame, a load reduction frame, and a load absorber. The battery frame is fixed to a vehicle body frame of an electrically-powered vehicle and supports a battery. The load reduction frame extends in a front-rear direction on a front side of the battery frame and is disposed in a substantially same plane as the battery frame. The load absorber is disposed between the load reduction frame and the battery frame and absorbs an impact load to be transmitted from the load reduction frame to the battery frame.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: November 21, 2017
    Assignee: SUBARU CORPORATION
    Inventors: Takehisa Tsukada, Hiroshi Matsuda
  • HIGH-STRENGTH STEEL SHEET, HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET, HIGH-STRENGTH HOT-DIP ALUMINUM-COATED STEEL SHEET, AND HIGH-STRENGTH ELECTROGALVANIZED STEEL SHEET, AND METHODS FOR MANUFACTURING SAME
    Publication number: 20170327919
    Abstract: A high-strength steel sheet with excellent formability and high yield ratio that has TS of 980 MPa or more and YR of 68% or more is obtained by providing a predetermined chemical composition and a steel microstructure that contains, in area ratio, 15 to 55% of polygonal ferrite, 8% or more of non-recrystallized ferrite, and 15 to 30% of martensite, and that contains, in volume fraction, 12% or more of retained austenite, in which the polygonal ferrite has a mean grain size of 4 ?m or less, the martensite has a mean grain size of 2 ?m or less, the retained austenite has a mean grain size of 2 ?m or less, and a value obtained by dividing an Mn content in the retained austenite (in mass %) by an Mn content in the polygonal ferrite (in mass %) equals 2.0 or more.
    Type: Application
    Filed: October 29, 2015
    Publication date: November 16, 2017
    Applicant: JFE STEEL CORPORATION
    Inventors: Yoshiyasu KAWASAKI, Hiroshi MATSUDA, Takeshi YOKOTA, Takako YAMASHITA, Kazuhiro SETO
  • Hard disk drive with feedthrough connector
    Patent number: 9819129
    Abstract: Described herein is an apparatus that includes a housing that defines an interior cavity. The housing also includes a feedthrough aperture. The apparatus also includes an electrical connector that is coupled to the housing over the feedthrough aperture. The electrical connector includes a base, a plurality of pins extending through the base, and a skirt positioned about a periphery of the base. The pins extend from a location external to the housing to a location within the interior cavity of the housing. Further, an inner surface of the base is co-planar with an outer end of the feedthrough aperture. The apparatus also includes solder positioned on the housing and against an entire periphery of the skirt to seal the electrical connector to the housing.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: November 14, 2017
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Noritaka Otake, Hiroshi Matsuda, Katsumasa Nakatsukasa, Kouki Uefune
  • Ultrasonic device and probe as well as electronic apparatus and ultrasonic imaging apparatus
    Patent number: 9818926
    Abstract: An acoustic matching layer is formed on individual ultrasonic transducer elements on a base. Electric conductors are arranged between adjacent ultrasonic transducer elements, the electric conductors being connected to electrodes of the ultrasonic transducer elements. Protective films overlap the electric conductors. The protective films have smaller moisture permeability than the acoustic matching layer. Wall portions are arranged on the protective films, the wall portions separating portions of the acoustic matching layer that are respectively located on adjacent ultrasonic transducer elements from each other at least in a part of a height range with respect to a height direction from the base, and having an acoustic impedance that is different from the acoustic impedance of the acoustic matching layer.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: November 14, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Hironori Suzuki, Hiroshi Matsuda
  • HIGH-STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING SAME
    Publication number: 20170314091
    Abstract: Disclosed is a steel sheet having a predetermined chemical composition and a steel microstructure that contains, in area ratio, 35% or more and 80% or less of polygonal ferrite and 5% or more and 25% or less of martensite, and that contains, in volume fraction, 8% or more of retained austenite, in which the polygonal ferrite, the martensite, and the retained austenite have a mean grain size of 6 ?m or less, 3 ?m or less, and 3 ?m or less, respectively, and each have a mean grain aspect ratio of 2.0 or less, and in which a value obtained by dividing an Mn content in the retained austenite in mass % by an Mn content in the polygonal ferrite in mass % equals 2.0 or more.
    Type: Application
    Filed: October 29, 2015
    Publication date: November 2, 2017
    Applicant: JFE STEEL CORPORATION
    Inventors: Yoshiyasu KAWASAKI, Hiroshi MATSUDA, Takeshi YOKOTA, Takako YAMASHITA, Kazuhiro SETO
  • RESISTANCE SPOT WELDING METHOD
    Publication number: 20170312846
    Abstract: The resistance spot welding method includes performing actual welding to squeeze, by a pair of electrodes (14), a sheet combination with a sheet thickness ratio of more than 3 in which a thin sheet (11) is overlapped on at least one face of two or more overlapping thick sheets (12, 13), and passing a current while applying an electrode force to join the sheet combination, wherein in the actual welding, a pattern of the current and the electrode force is divided into two or more steps including a first step and a second step to perform welding, and an electrode force F1 in the first step and an electrode force F2 in the second step satisfy a relationship F1>F2.
    Type: Application
    Filed: November 18, 2015
    Publication date: November 2, 2017
    Applicant: JFE STEEL CORPORATION
    Inventors: Chikaumi SAWANISHI, Yasuaki OKITA, Hiroshi MATSUDA, Rinsei IKEDA