Patents by Inventor Kazuhiko Hayashi

Kazuhiko Hayashi 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: 10859423
    Abstract: A liquid sensor is configured to detect presence or absence of a liquid in a tube having a light-transmitting property. The liquid sensor includes a main body case including an elastic piece configured to hold the tube such that the tube is allowed to be inserted therein and extracted therefrom in a direction perpendicular to a longitudinal direction of the tube, a light projecting unit configured to irradiate the tube with detection light, and a light receiving unit configured to receive the detection light that has passed through the tube. A holding member configured to cover the tube in an insertion and extraction direction of the tube is attachable to and detachable from the main body case only in a direction that is not identical with the insertion and extraction direction of the tube.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: December 8, 2020
    Assignee: PANASONIC INDUSTRIAL DEVICES SUNX CO., LTD.
    Inventors: Kazuhiko Hayashi, Takumi Terazawa, Hironao Kitanaka
  • Patent number: 10671074
    Abstract: A control system for a work vehicle includes a sensor and a controller. The sensor outputs a signal indicating an actual traveling direction of the work vehicle. The controller communicates with the sensor. The controller is programmed so as to execute the following processing. The controller acquires the actual traveling direction of the work vehicle. The controller sets the actual traveling direction as a target traveling direction when a condition that indicates that the work vehicle has started straight travel has been met. The controller calculates a bearing difference between the target traveling direction and the actual traveling direction. The controller moves the work implement at a target tilt angle corresponding to the bearing difference so as to reduce the bearing difference.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: June 2, 2020
    Assignee: KOMATSU LTD.
    Inventors: Kazuhiro Hashimoto, Kenjiro Shimada, Kazuhiko Hayashi, Yousuke Yamaguchi
  • Patent number: 10485069
    Abstract: An illuminating apparatus includes a first light emitter, a second light emitter which emits light including more predefined color components than light emitted by the first light emitter, and a lighting device which supplies current modulated according to a visible light communication signal, to the first light emitter. The lighting device supplies a constant current to the second light emitter, while the first light emitter is supplied with current.
    Type: Grant
    Filed: May 20, 2018
    Date of Patent: November 19, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Keisuke Seki, Shigeru Ido, Kazuhiko Hayashi
  • Patent number: 10439719
    Abstract: A lighting device includes: a constant current supply circuit; and a first modulation circuit and a second modulation circuit that are connected in series between output terminals of the constant current supply circuit. The first modulation circuit includes a first capacitor that is connected in parallel to the first modulation circuit. The second modulation circuit includes a second capacitor that is connected in parallel to the second modulation circuit.
    Type: Grant
    Filed: May 20, 2018
    Date of Patent: October 8, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Keisuke Seki, Shigeru Ido, Kazuhiko Hayashi
  • Publication number: 20190268992
    Abstract: An illuminating apparatus includes a first light emitter, a second light emitter which emits light including more predefined color components than light emitted by the first light emitter, and a lighting device which supplies current modulated according to a visible light communication signal, to the first light emitter. The lighting device supplies a constant current to the second light emitter, while the first light emitter is supplied with current.
    Type: Application
    Filed: May 14, 2019
    Publication date: August 29, 2019
    Inventors: Keisuke SEKI, Shigeru IDO, Kazuhiko HAYASHI
  • Publication number: 20190132054
    Abstract: A modulation device includes: a signal input circuit that receives an external input signal and outputs the signal downstream as a first signal; and an arithmetic processor positioned downstream of the signal input circuit. The arithmetic processor is configured to: determine when an external ID signal including ID information has been input as the first signal, and when determining that an external ID signal including ID information has been input as the first signal, acquire the ID information from the external ID signal, obtain transmission timing synchronizing with the first signal based on the external ID signal, and output a light source drive signal that drives a light source according to the ID information based on the transmission timing synchronizing with the input signal.
    Type: Application
    Filed: October 23, 2018
    Publication date: May 2, 2019
    Inventors: Shigeru IDO, Keisuke SEKI, Kazuhiko HAYASHI
  • Patent number: 10278258
    Abstract: A lighting device is a device that is for supplying current to an LED unit, is connected to a constant current source having output terminals to which a capacitor is connected, and includes: a transistor connected in parallel with the capacitor and connected in series with the LED unit; a modulation circuit (a microcomputer of a modulator, etc.) that causes the transistor to switch ON and OFF based on a signal for visible light communication; and a constant current control circuit that maintains a current flowing through the transistor at a constant current when the current flowing through the transistor is greater than a first predetermined value.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: April 30, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shigeru Ido, Keisuke Seki, Kazuhiko Hayashi
  • Publication number: 20190120681
    Abstract: A liquid sensor is configured to detect presence or absence of a liquid in a tube having a light-transmitting property. The liquid sensor includes a main body case including an elastic piece configured to hold the tube such that the tube is allowed to be inserted therein and extracted therefrom in a direction perpendicular to a longitudinal direction of the tube, a light projecting unit configured to irradiate the tube with detection light, and a light receiving unit configured to receive the detection light that has passed through the tube. A holding member configured to cover the tube in an insertion and extraction direction of the tube is attachable to and detachable from the main body case only in a direction that is not identical with the insertion and extraction direction of the tube.
    Type: Application
    Filed: April 20, 2017
    Publication date: April 25, 2019
    Applicant: PANASONIC INDUSTRIAL DEVICES SUNX CO., LTD.
    Inventors: Kazuhiko HAYASHI, Takumi TERAZAWA, Hironao KITANAKA
  • Publication number: 20190049973
    Abstract: A control system for a work vehicle includes a sensor and a controller. The sensor outputs a signal indicating an actual traveling direction of the work vehicle. The controller communicates with the sensor. The controller is programmed so as to execute the following processing. The controller acquires the actual traveling direction of the work vehicle. The controller sets the actual traveling direction as a target traveling direction when a condition that indicates that the work vehicle has started straight travel has been met. The controller calculates a bearing difference between the target traveling direction and the actual traveling direction. The controller moves the work implement at a target tilt angle corresponding to the bearing difference so as to reduce the bearing difference.
    Type: Application
    Filed: August 8, 2017
    Publication date: February 14, 2019
    Inventors: Kazuhiro HASHIMOTO, Kenjiro SHIMADA, Kazuhiko HAYASHI, Yousuke YAMAGUCHI
  • Publication number: 20180352627
    Abstract: An illuminating apparatus includes a first light emitter, a second light emitter which emits light including more predefined color components than light emitted by the first light emitter, and a lighting device which supplies current modulated according to a visible light communication signal, to the first light emitter. The lighting device supplies a constant current to the second light emitter, while the first light emitter is supplied with current.
    Type: Application
    Filed: May 20, 2018
    Publication date: December 6, 2018
    Inventors: Keisuke SEKI, Shigeru IDO, Kazuhiko HAYASHI
  • Publication number: 20180352625
    Abstract: Provided is a control circuit (modulation circuit) that receives output current determined based on a dimming signal, from a lighting device, consumes, as consumption current, part of the output current, and supplies supply current to a light-emitting element. The control circuit includes a regulator circuit that regulates the consumption current. The regulator circuit monotonously increases a magnitude of the consumption current relative to a magnitude of the output current.
    Type: Application
    Filed: May 20, 2018
    Publication date: December 6, 2018
    Inventors: Keisuke SEKI, Shigeru IDO, Kazuhiko HAYASHI
  • Publication number: 20180343057
    Abstract: A lighting device includes: a constant current supply circuit; and a first modulation circuit and a second modulation circuit that are connected in series between output terminals of the constant current supply circuit. The first modulation circuit includes a first capacitor that is connected in parallel to the first modulation circuit. The second modulation circuit includes a second capacitor that is connected in parallel to the second modulation circuit.
    Type: Application
    Filed: May 20, 2018
    Publication date: November 29, 2018
    Inventors: Keisuke SEKI, Shigeru IDO, Kazuhiko HAYASHI
  • Publication number: 20180338364
    Abstract: A lighting device is a device that is for supplying current to an LED unit, is connected to a constant current source having output terminals to which a capacitor is connected, and includes: a transistor connected in parallel with the capacitor and connected in series with the LED unit; a modulation circuit (a microcomputer of a modulator, etc.) that causes the transistor to switch ON and OFF based on a signal for visible light communication; and a constant current control circuit that maintains a current flowing through the transistor at a constant current when the current flowing through the transistor is greater than a first predetermined value.
    Type: Application
    Filed: May 16, 2018
    Publication date: November 22, 2018
    Inventors: Shigeru IDO, Keisuke SEKI, Kazuhiko HAYASHI
  • Patent number: 9920919
    Abstract: A light emitting device includes a substrate with a circuit incorporated in the substrate, an interposer having a circuit connected to the circuit of the substrate, a light emitting element disposed on the interposer, a transmissive component disposed positioned to the light emitting element, and a frame body having an opening in which the transmissive component is disposed. The light emitting device further includes a ring-shaped body that encompasses the frame body on the substrate, and a sealant making the substrate and the ring-shaped body tightly contact one another. The frame body is disposed so as to encompass the light emitting element on the substrate. This provides the light emitting device with waterproof function.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: March 20, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kouichirou Matsuoka, Kazuhiko Hayashi, Shintaro Hayashi
  • Publication number: 20160356485
    Abstract: A light emitting device includes a substrate with a circuit incorporated in the substrate, an interposer having a circuit connected to the circuit of the substrate, a light emitting element disposed on the interposer, a transmissive component disposed positioned to the light emitting element, and a frame body having an opening in which the transmissive component is disposed. The light emitting device further includes a ring-shaped body that encompasses the frame body on the substrate, and a sealant making the substrate and the ring-shaped body tightly contact one another. The frame body is disposed so as to encompass the light emitting element on the substrate. This provides the light emitting device with waterproof function.
    Type: Application
    Filed: February 17, 2015
    Publication date: December 8, 2016
    Inventors: KOUICHIROU MATSUOKA, KAZUHIKO HAYASHI, SHINTARO HAYASHI
  • Patent number: 9459192
    Abstract: A water absorption property of a concrete surface of an actual structure is measured in situ for clarification and evaluation of causative factors and so forth related to densification of surface layer concrete. An apparatus for a water absorption test has a position-fixing device, a detecting device and a measuring device. A device for water absorption test having vent means is positionally fixed on the concrete surface by the position-fixing device, with use of negative pressure or a mechanical connection. The detecting device detects an amount of water held in a chamber, and results detected by the detecting device are input into the measuring device. A water absorption rate is measured by the detecting device and the measuring device. On the basis of the water absorption rate measured at predetermined elapsed time, identification or comparison of causative or evaluative factors related to densification of the surface layer concrete is carried out.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: October 4, 2016
    Assignee: NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY
    Inventors: Akira Hosoda, Kazuhiko Hayashi
  • Publication number: 20150372204
    Abstract: An ultraviolet light emitting device of the present invention includes a light emitting element provided on a substrate, an optical system provided at a position facing the light emitting element, a metal cylinder holding the optical system, and a holding component holding the metal cylinder on a substrate. Light the emitting element is disposed in an area of the substrate, the area surrounded by one end of the metal cylinder closer to the substrate. This provides the ultraviolet light emitting device that prevents the distortion of the optical system as well as the influence of ultraviolet light on the holding component.
    Type: Application
    Filed: January 27, 2014
    Publication date: December 24, 2015
    Inventors: KOUICHIROU MATSUOKA, KAZUHIKO HAYASHI, SHINTARO HAYASHI
  • Patent number: 9200426
    Abstract: A blade control system includes an angle obtaining part, an open ratio setting part and a lift cylinder controlling part. The angle obtaining part is configured to obtain an angle of a lift frame with respect to a designed surface. The open ratio setting part is configured to set an open ratio based on the angle. The lift cylinder controlling part is configured to open a proportional control valve at the open ratio for elevating the blade when a distance between the designed surface and an edge of a blade is determined to be less than or equal to a threshold.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: December 1, 2015
    Assignee: KOMATSU LTD.
    Inventors: Kazuhiko Hayashi, Kenji Okamoto, Kenjiro Shimada
  • Patent number: 9026319
    Abstract: When a blade load is reduced from a value greater than or equal to a first set load value to a value less than the first set load value, a blade control device is configured to set a virtual designed surface to be closer to a blade than a designed surface is, and is configured to allow the blade to pivot above the virtual designed surface.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: May 5, 2015
    Assignee: Komatsu Ltd.
    Inventors: Kazuhiko Hayashi, Kenjiro Shimada, Kenji Okamoto
  • Patent number: 8993064
    Abstract: Provided are a substrate for a superconducting compound and a method for manufacturing the substrate which can realize the excellent adhesive strength simultaneously with high orientation of copper. An absorbed material on a surface of a copper foil to which rolling is applied at a draft of 90% or more is removed by applying sputter etching to the surface of the copper foil, sputter etching is applied to a nonmagnetic metal sheet, the copper foil and the metal sheet are bonded to each other by applying a pressure to the copper foil and the metal sheet using reduction rolls, crystals of the copper in the copper foil are oriented by heating a laminated body formed by such bonding, copper is diffused into the metal sheet by heating with a copper diffusion distance of 10 nm or more, and a protective layer is laminated to a surface of the copper foil of the laminated body.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: March 31, 2015
    Assignees: Toyo Kohan Co., Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Hironao Okayama, Kouji Nanbu, Akira Kaneko, Hajime Ota, Kotaro Ohki, Takashi Yamaguchi, Kazuhiko Hayashi, Kazuya Ohmatsu