Patents by Inventor Yutaka Hayashi

Yutaka 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: 11112026
    Abstract: An electromagnetic valve as a fluid device is provided with a valve seat and a valve body midway of a flow path where a liquid flows, and closes the valve with the valve body pressed onto the valve seat and opens the valve by causing a gap between the valve seat and the valve body. The electromagnetic valve includes, as electrodes for measuring a degree of electrical conductivity between a liquid on an upstream side and a liquid on a downstream side of the valve seat and the valve body in the flow path, a first electrode electrically conductive to the liquid on the upstream side and a second electrode electrically conductive to the liquid on the downstream side. By using the first and second electrodes, detection of liquid leakage can be easily performed.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: September 7, 2021
    Assignee: TAKASAGO ELECTRIC, INC.
    Inventors: Hiroyuki Sugiura, Yutaka Hayashi, Ken Naito, Masaaki Inoue
  • Patent number: 11097535
    Abstract: A printing apparatus using a printhead that includes an inspection circuit for inspecting an ink discharge status for each nozzle performs an inspection processing. The apparatus selects a nozzle as a target of inspection of the ink discharge status, sets a threshold value for inspecting a detection result of a temperature detection element corresponding to the selected nozzle, and uses the inspection circuit and the set threshold value. The apparatus receives, from the printhead, an inspection result for the selected nozzle, determines, based on the received inspection result, a threshold value to be used by the inspection circuit for inspecting the discharge status of the selected nozzle in a subsequent inspection, and stores the determined threshold value in a memory.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: August 24, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuhei Oikawa, Masashi Hayashi, Toshiyuki Chikuma, Yutaka Kano
  • Patent number: 10961360
    Abstract: A fiber-reinforced resin material includes a thermoplastic resin and a bundle of reinforced fibers arranged in one direction, the thermoplastic resin being a reactive resin. The thermoplastic resin may be an epoxy resin. The reinforced fibers may be carbon fibers. A molded fiber-reinforced resin body is obtained using the fiber-reinforced resin material. The molded fiber-reinforced resin body may be formed by the application of heat and pressure.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: March 30, 2021
    Assignee: KOMATSU MATERE CO., LTD.
    Inventors: Yutaka Hayashi, Taketoshi Nakayama, Hiroyuki Yamada, Honami Noda
  • Publication number: 20200132211
    Abstract: An electromagnetic valve as a fluid device is provided with a valve seat and a valve body midway of a flow path where a liquid flows, and closes the valve with the valve body pressed onto the valve seat and opens the valve by causing a gap between the valve seat and the valve body. The electromagnetic valve includes, as electrodes for measuring a degree of electrical conductivity between a liquid on an upstream side and a liquid on a downstream side of the valve seat and the valve body in the flow path, a first electrode electrically conductive to the liquid on the upstream side and a second electrode electrically conductive to the liquid on the downstream side. By using the first and second electrodes, detection of liquid leakage can be easily performed.
    Type: Application
    Filed: November 6, 2018
    Publication date: April 30, 2020
    Applicant: TAKASAGO ELECTRIC, INC.
    Inventors: Hiroyuki SUGIURA, Yutaka HAYASHI, Ken NAITO, Masaaki INOUE
  • Publication number: 20200124759
    Abstract: A joint system includes flow paths coupled to a fluid device which handles a fluid, first and second electrodes separately provided to the flow paths to electrically make contact with the fluid in the flow paths, and a detection circuit which detects whether the fluid passing through the fluid device is present or absent. The detection circuit measures a degree of electrical conductivity between the flow paths by using the first and second electrodes and detects whether the fluid passing through the fluid device is present or absent in accordance with the degree of electrical conductivity between the flow paths.
    Type: Application
    Filed: November 6, 2018
    Publication date: April 23, 2020
    Applicant: TAKASAGO ELECTRIC, INC.
    Inventors: Hiroyuki SUGIURA, Yutaka HAYASHI, Ken NAITO, Masaaki INOUE
  • Patent number: 10599172
    Abstract: There is to provide a power circuit capable of stabilizing an internal power source voltage and assuring a normal operation of a load circuit. According to one embodiment, the power circuit includes a regulator which generates an output voltage using an entered input voltage, a voltage detecting circuit which detects the output voltage, and a clamp circuit which outputs an internal power source voltage based on the output voltage and in a first failure that the output voltage is larger than a predetermined first voltage, outputs the internal power source voltage suppressed to the first voltage and less, in which the clamp circuit outputs the internal power source voltage to the logic circuit which operates with the internal power source voltage of the first voltage and less and the voltage detecting circuit outputs the first failure to the logic circuit when detecting the first failure.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: March 24, 2020
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Kentaro Hayashi, Yutaka Hayashi
  • Publication number: 20190145399
    Abstract: A peristaltic pump device is provided with a tube allowing the passage of a fluid, a tube holder holding the tube, and a base to which the tube holder is fitted. A rotor is attached rotatably onto the base, and rollers are pivotally supported on the rotor and configured to rotate while pressing and crushing the tube. A substantially U-shaped tube holding groove is formed on a bonded surface of the tube holder on the base side. A depth of the tube holding groove is formed to be shorter than an outer diameter of the tube. When the tube is inserted into the tube holding groove, the tube is held inside the tube holding groove by a frictional resistance caused by a restoring elastic force of the tube.
    Type: Application
    Filed: November 7, 2018
    Publication date: May 16, 2019
    Inventor: Yutaka Hayashi
  • Publication number: 20190107854
    Abstract: There is to provide a power circuit capable of stabilizing an internal power source voltage and assuring a normal operation of a load circuit. According to one embodiment, the power circuit includes a regulator which generates an output voltage using an entered input voltage, a voltage detecting circuit which detects the output voltage, and a clamp circuit which outputs an internal power source voltage based on the output voltage and in a first failure that the output voltage is larger than a predetermined first voltage, outputs the internal power source voltage suppressed to the first voltage and less, in which the clamp circuit outputs the internal power source voltage to the logic circuit which operates with the internal power source voltage of the first voltage and less and the voltage detecting circuit outputs the first failure to the logic circuit when detecting the first failure.
    Type: Application
    Filed: August 21, 2018
    Publication date: April 11, 2019
    Inventors: Kentaro HAYASHI, Yutaka HAYASHI
  • Publication number: 20180065579
    Abstract: An ECU includes a boosting circuit that boosts an input power supply voltage, a backup capacitor that charges a backup power supply in accordance with a boosted voltage boosted by the boosting circuit, an airbag ignition circuit that drives an airbag with the backup power supply charged by the backup capacitor as a driving power supply, and a bidirectional current limiting unit that limits a charging current flowing from the boosting circuit to the backup capacitor and limits a backflow current flowing from the backup capacitor to the boosting circuit.
    Type: Application
    Filed: November 8, 2017
    Publication date: March 8, 2018
    Inventor: Yutaka Hayashi
  • Patent number: 9827937
    Abstract: An ECU includes a boosting circuit that boosts an input power supply voltage, a backup capacitor that charges a backup power supply in accordance with a boosted voltage boosted by the boosting circuit, an airbag ignition circuit that drives an airbag with the backup power supply charged by the backup capacitor as a driving power supply, and a bidirectional current limiting unit that limits a charging current flowing from the boosting circuit to the backup capacitor and limits a backflow current flowing from the backup capacitor to the boosting circuit.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: November 28, 2017
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventor: Yutaka Hayashi
  • Publication number: 20170232702
    Abstract: A molded object includes: a first layer formed using a fiber-reinforced resin material including thermoplastic resin and strip-shaped reinforcement fiber bundles each composed of a plurality of reinforcement fibers aligned unidirectionally, the strip-shaped reinforcement fiber bundles being three-dimensionally and randomly stacked; and a second layer made of a fiber-reinforced resin material including thermoplastic resin and reinforcement fibers of filaments, and formed on at least one surface of the first layer.
    Type: Application
    Filed: July 9, 2015
    Publication date: August 17, 2017
    Inventors: Yutaka HAYASHI, Taketoshi NAKAYAMA, Honami NODA
  • Patent number: 9640525
    Abstract: Provided is an ESD protection circuit including: a power MOS transistor provided between an external connection terminal and a reference voltage terminal; a clamping circuit that is provided between the external connection terminal and a gate of the power MOS transistor and clamps a voltage between the external connection terminal and the gate of the power MOS transistor at a predetermined value or less; a first resistive element provided between the gate and a source of the power MOS transistor; and a MOS transistor that is provided in series with the power MOS transistor and has a gate and a source which are commonly connected to each other.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: May 2, 2017
    Assignee: Renesas Electronics Corporation
    Inventor: Yutaka Hayashi
  • Patent number: 9641782
    Abstract: Expansion of the dynamic range was difficult in conventional amplifying photoelectric conversion devices designed to have a large gain because, when used for high input light intensity, the electric current exceeds the electric current capacity of a near-minimum sized transistor obtained with the design rules. Also, in conventional photoelectric conversion devices, techniques for varying the electric signal outputs in real-time at the device level are necessary for real-time import of observation targets or images having a high contrast ratio and for visualization of local areas in real-time. In order to solve this problem, the present invention provides a gain varying method, a variable gain photoelectric conversion device, a photoelectric conversion cell, a photoelectric conversion array, a read-out method thereof, and a circuit therefor in which amplifying photoelectric conversion devices and field-effect transistors are combined.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: May 2, 2017
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Yutaka Hayashi, Yasushi Nagamune, Toshitaka Ota
  • Patent number: 9600005
    Abstract: A semiconductor integrated circuit that is used for a stabilizing power supply circuit which supplies an output power supply voltage to a parallel connection of a smoothing capacitor and a load, from an input power supply voltage, includes an error amplifier that detects an error of the output power supply voltage, an output control circuit that is connected between the input terminal and the output terminal, a phase compensation circuit that is connected to the error amplifier, and a detection control circuit that is connected to the phase compensation circuit.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: March 21, 2017
    Assignee: Renesas Electronics Corporation
    Inventors: Kentaro Hayashi, Yutaka Hayashi
  • Patent number: 9571770
    Abstract: A sense circuit includes a differential amplifier circuit including an inverting input section, a non-inverting input section and an output section, an electrical capacitor connected between the inverting input section and the output section, and a field effect transistor including a source, a drain, and a gate. One of the source and the drain is connected to the inverting input section, and the other of the source and the drain is connected to the output section. A reference potential is supplied to the non-inverting input section, and an output section of a photoelectric conversion cell having an added switching function is connected to the inverting input section.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: February 14, 2017
    Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, RICOH COMPANY, LTD.
    Inventors: Yutaka Hayashi, Toshitaka Ota, Yasushi Nagamune, Hirofumi Watanabe, Kazuhiro Yoneda, Katsuhiko Aisu, Takaaki Negoro
  • Publication number: 20160362078
    Abstract: An ECU includes a boosting circuit that boosts an input power supply voltage, a backup capacitor that charges a backup power supply in accordance with a boosted voltage boosted by the boosting circuit, an airbag ignition circuit that drives an airbag with the backup power supply charged by the backup capacitor as a driving power supply, and a bidirectional current limiting unit that limits a charging current flowing from the boosting circuit to the backup capacitor and limits a backflow current flowing from the backup capacitor to the boosting circuit.
    Type: Application
    Filed: May 27, 2016
    Publication date: December 15, 2016
    Inventor: Yutaka HAYASHI
  • Publication number: 20160326323
    Abstract: A fiber-reinforced resin material includes a thermoplastic resin and a bundle of reinforced fibers arranged in one direction, the thermoplastic resin being a reactive resin. The thermoplastic resin may be an epoxy resin. The reinforced fibers may be carbon fibers. A molded fiber-reinforced resin body is obtained using the fiber-reinforced resin material. The molded fiber-reinforced resin body may be formed by the application of heat and pressure.
    Type: Application
    Filed: January 8, 2015
    Publication date: November 10, 2016
    Applicant: KOMATSU SEIREN CO., LTD.
    Inventors: Yutaka HAYASHI, Taketoshi NAKAYAMA, Hiroyuki YAMADA, Honami NODA
  • Patent number: 9403720
    Abstract: A porous ceramic for which any decrease in water permeability can be suppressed over a long period of time. A porous ceramic is composed of a porous ceramic sintered body produced by molding and sintering a mixture containing a clay, wherein a surface portion of the porous ceramic sintered body has been removed by grinding. The mixture preferably contains a foaming agent.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: August 2, 2016
    Assignee: KOMATSU SEIREN CO., LTD.
    Inventors: Teruhiro Okuya, Yutaka Hayashi, Kohsuke Togashi, Akihisa Kaneda, Takeshi Ohta
  • Publication number: 20160193608
    Abstract: A biochip support member is provided that comprises a base material, and a columnar member different member from the base material having a support area that can support a biochip formed of a biomolecule provided at one end, and is attached to the base material through an attaching part at the other end.
    Type: Application
    Filed: February 25, 2016
    Publication date: July 7, 2016
    Applicant: NIKON CORPORATION
    Inventors: Tadao ISAMI, Yutaka HAYASHI, Takehito UEDA
  • Patent number: 9362328
    Abstract: The invention relates to a semiconductor device having a vertical transistor bipolar structure of emitter, base, and collector formed in this order from a semiconductor substrate surface in a depth direction. The semiconductor device includes an electrode embedded from the semiconductor substrate surface into the inside and insulated by an oxide film. In the surface of the substrate, a first-conductivity-type first semiconductor region, a second-conductivity-type second semiconductor region, and a first-conductivity-type third semiconductor region are arranged, from the surface side, inside a semiconductor device region surrounded by the electrode and along the electrode with the oxide film interposed therebetween, the second semiconductor region located below the first semiconductor region, the third semiconductor region located below the second semiconductor region.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: June 7, 2016
    Assignees: National Institute of Advanced Industrial Science and Technology, RICOH COMPANY, LTD.
    Inventors: Takaaki Negoro, Hirofumi Watanabe, Yutaka Hayashi, Toshitaka Ota, Yasushi Nagamune