Patents by Inventor Osamu Ishikawa

Osamu Ishikawa 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: 10900970
    Abstract: An object of the present invention is to improve visibility by reducing background noise in order to accurately detect the signal from a target substance in an immunochromatographic device. The immunochromatographic device comprises a membrane having a detection region, to which an antibody or antigen serving as a capturing substance capable of capturing a target substance is immobilized, for detecting the target substance by using an antigen or antibody labeled with a labeling carrier that is a colored particle to form a complex of the capturing substance-target substance-labeled antigen or antibody in the capturing substance-immobilized detection region on the device, based on color of the labeling carrier, wherein a colorant having a color complementary to the color of the labeling carrier is allowed to be contained in a dry state in a constituent member of the device such that the colorant is developed together with a specimen when the specimen is developed on the device.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: January 26, 2021
    Assignee: Denka Company Limited
    Inventors: Osamu Ishikawa, Risa Kohiyama, Takashi Miyazawa
  • Patent number: 10883985
    Abstract: Disclosed is an immunochromatographic test strip by which the influences by the interfering substances in the immunochromatography method, contained in test samples, are reduced, so that it enables to accurately and specifically measure a test substance in a test sample irrespective of the amount of the test sample supplied to the assay, and to provide an immunochromatography method using the immunochromatographic test strip. The immunochromatographic test strip includes, in the order from upstream, a sample pad, a labeled substance region, a detection region and an absorption band, wherein a polymer(s) in which hydrophobic cyclic monomer(s) having an ionic functional group(s) is/are polymerized is impregnated at a region(s) upstream of the labeled substance region.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: January 5, 2021
    Assignee: DENKA SEIKEN CO., LTD.
    Inventors: Risa Kohiyama, Osamu Ishikawa, Yuki Shinohara, Takashi Miyazawa
  • Publication number: 20200355408
    Abstract: A thermoacoustic device includes a loop tube in which a working gas is sealed; a stack in which a temperature gradient is generated in a tube axis direction of the loop tube, the stack being provided in the loop tube; and a diaphragm structure including a diaphragm provided in the loop tube and an operating unit, the diaphragm having a surface extending in a direction intersecting the tube axis direction and being configured to vibrate with a component of vibration in the tube axis direction, and the operation unit being configured to apply a physical quantity that is required, to the diaphragm to change a rigidity of the diaphragm in the tube axis direction.
    Type: Application
    Filed: April 28, 2020
    Publication date: November 12, 2020
    Applicants: JTEKT CORPORATION, University Public Corporation Osaka
    Inventors: Tatsuma KOUCHI, Tomoyuki TAKEI, Kunio OHARA, Hiroki TANAKA, Osamu ISHIKAWA
  • Patent number: 10808968
    Abstract: A thermoacoustic cooling device includes a tube in which a working fluid is enclosed; a first stack that generates acoustic waves in the working fluid with use of a temperature gradient; a first high-temperature heat exchanger provided at a first side of the first stack to heat the first side of the first stack; a first low-temperature heat exchanger provided at a second side of the first stack; a second stack in which a temperature gradient is generated by the acoustic waves; a second high-temperature heat exchanger provided at a first side of the second stack, which has a high temperature; a second low-temperature heat exchanger provided at a second side of the second stack, which has a low temperature; and a heat transfer portion configured to connect the second low-temperature heat exchanger to the first low-temperature heat exchanger so as to transfer heat therebetween.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: October 20, 2020
    Assignees: JTEKT CORPORATION, PUBLIC UNIVERSITY CORPORATION OSAKA CITY UNIVERSITY
    Inventors: Toshiyuki Saito, Ryouichi Takahata, Tomoyuki Takei, Osamu Ishikawa
  • Patent number: 10712054
    Abstract: A thermoacoustic device includes a loop pipe, a first stack that is disposed in the loop pipe and that generates a sound wave in the loop pipe by way of a temperature gradient, a second stack that is disposed in the loop pipe and that generates a temperature gradient, a first high temperature side heat exchanger that is disposed at one end of the first stack and that makes the temperature of the one end of the first stack be higher than the other end, and a first low temperature side heat exchanger that is disposed at the other end of the first stack and that makes the temperature of the other end of the first stack be lower than the one end.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: July 14, 2020
    Assignees: JTEKT CORPORATION, UNIVERSITY PUBLIC CORPORATION OSAKA
    Inventors: Toshiyuki Saito, Ryouichi Takahata, Tomoyuki Takei, Osamu Ishikawa
  • Patent number: 10566196
    Abstract: A method for manufacturing a bonded SOI wafer, including depositing a polycrystalline silicon layer on a base wafer, forming an insulator film on a bond wafer, bonding the bond wafer and a polished surface of the silicon layer with the insulator film interposed, and thinning the bond wafer, wherein a silicon single crystal wafer having a resistivity of 100 ?·cm or more is the base wafer, the step of depositing the silicon layer includes a stage of forming an oxide film on the surface of the base wafer, and the silicon layer is deposited between 1050° C. and 1200° C. Accordingly, the method enables a polycrystalline silicon layer to be deposited while preventing the progress of single crystallization even through a heat treatment step in the SOI wafer manufacturing process or a heat treatment step in the device manufacturing process and can improve throughput in the polycrystalline silicon layer depositing step.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: February 18, 2020
    Assignee: SHIN-ETSU HANDOTAI CO., LTD.
    Inventors: Norihiro Kobayashi, Osamu Ishikawa, Kenji Meguro, Taishi Wakabayashi, Hiroyuki Oonishi
  • Publication number: 20200010038
    Abstract: This injection molded article has a body part and a movable part. The body part has a first stopper part and a second stopper part, while the movable part has a movable body and a first rib and a second rib that are formed to protrude at both widthwise end parts of the movable body. A first groove and a second groove that extend in the depth direction perpendicular to the axial direction of a hinge part, are respectively formed between the movable body and the first rib and between the movable body and the second rib.
    Type: Application
    Filed: March 26, 2018
    Publication date: January 9, 2020
    Inventors: Hiroto Oshika, Tomohiko Kawamura, Osamu Ishikawa
  • Publication number: 20190277838
    Abstract: The present invention intends to provide an immunochromatographic test piece that makes it possible to achieve both highly sensitive detection of a substance to be detected and a simple test piece structure, which are usually difficult to be made compatible with each other.
    Type: Application
    Filed: May 23, 2019
    Publication date: September 12, 2019
    Applicant: Denka Seiken Co., Ltd.
    Inventors: Risa Kohiyama, Osamu ISHIKAWA, Takashi MIYAZAWA
  • Publication number: 20190242624
    Abstract: A thermoacoustic device includes a loop pipe, a first stack that is disposed in the loop pipe and that generates a sound wave in the loop pipe by way of a temperature gradient, a second stack that is disposed in the loop pipe and that generates a temperature gradient, a first high temperature side heat exchanger that is disposed at one end of the first stack and that makes the temperature of the one end of the first stack be higher than the other end, and a first low temperature side heat exchanger that is disposed at the other end of the first stack and that makes the temperature of the other end of the first stack be lower than the one end.
    Type: Application
    Filed: October 18, 2017
    Publication date: August 8, 2019
    Applicants: JTEKT CORPORATION, UNIVERSITY PUBLIC CORPORATION OSAKA
    Inventors: Toshiyuki SAITO, Ryouichi TAKAHATA, Tomoyuki TAKEI, Osamu ISHIKAWA
  • Patent number: 10345294
    Abstract: The present invention intends to provide an immunochromatographic test piece that makes it possible to achieve both highly sensitive detection of a substance to be detected and a simple test piece structure, which are usually difficult to be made compatible with each other.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: July 9, 2019
    Assignee: Denka Seiken Co., Ltd.
    Inventors: Risa Kohiyama, Osamu Ishikawa, Takashi Miyazawa
  • Patent number: 10283401
    Abstract: A bonded semiconductor wafer provided with a single crystal silicon layer on a main surface, wherein the bonded semiconductor wafer has a base wafer composed of a silicon single crystal, and the bonded semiconductor wafer has a first dielectric layer, a polycrystalline silicon layer, a second dielectric layer, and the single crystal silicon layer above the base wafer in this order, with a bonding plane lying between the polycrystalline silicon layer and the second dielectric layer; and wherein a carrier trap layer is formed between the base wafer and the dielectric layer. This provides a bonded semiconductor wafer of a trap-rich type SOI substrate wherein the base wafer can be prevented from lowering the specific resistance due to impurities and influence of electric charge in the BOX oxide film, distortion of radio-frequency fundamental signals and crosstalk signals from one circuit to another circuit are decreased, and the mass-productivity is excellent.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: May 7, 2019
    Assignee: SHIN-ETSU HANDOTAI CO., LTD.
    Inventors: Osamu Ishikawa, Masahiro Kato
  • Patent number: 10156217
    Abstract: Provided is a device for performing an automatic stop operation for an internal combustion engine when a predetermined automatic stop requirement is satisfied during an operation of the internal combustion engine and performing a restart operation for the internal combustion engine when a predetermined restart requirement is satisfied during an automatic stop time period of the internal combustion engine. In the device, restart control means (22) executes fuel injection control at the time of start of the restart operation by determining whether or not initial asynchronous injection of a fuel into a cylinder that is in an intake stroke is executable in accordance with an initially detected crank angle after the start of the restart operation and determining a next fuel injection cylinder and a fuel injection timing for the next fuel injection cylinder.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: December 18, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tomohisa Shoda, Takeru Okabe, Osamu Ishikawa
  • Patent number: 10046759
    Abstract: While coolant is used to cool a motor inverter and a generator inverter included in a power drive unit configured to invert power between a battery and a motor/generator in both directions, an EV travel mode and a power generation travel mode are switched according to detection values from sensors in an electrically driven vehicle and including a switching device temperature sensor for a switching device of the inverters and a coolant temperature sensor, thereby controlling the vehicle. A failure of the coolant temperature sensor is detected according to a detection value from the coolant temperature sensor, and, in the EV travel mode, a detection value detected by the switching device temperature sensor for the switching device of the generator inverter is set as a detection value of a temperature of the coolant when the failure of the coolant temperature sensor is detected.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: August 14, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Osamu Ishikawa, Yasufumi Ogawa
  • Publication number: 20180172682
    Abstract: Disclosed is an immunochromatographic test strip by which the influences by the interfering substances in the immunochromatography method, contained in test samples, are reduced, so that it enables to accurately and specifically measure a test substance in a test sample irrespective of the amount of the test sample supplied to the assay, and to provide an immunochromatography method using the immunochromatographic test strip. The immunochromatographic test strip includes, in the order from upstream, a sample pad, a labeled substance region, a detection region and an absorption band, wherein a polymer(s) in which hydrophobic cyclic monomer(s) having an ionic functional group(s) is/are polymerized is impregnated at a region(s) upstream of the labeled substance region.
    Type: Application
    Filed: May 20, 2016
    Publication date: June 21, 2018
    Applicant: DENKA SEIKEN CO., LTD.
    Inventors: Risa KOHIYAMA, Osamu ISHIKAWA, Yuki SHINOHARA, Takashi MIYAZAWA
  • Patent number: 9989031
    Abstract: An engine automatic stop/restart device includes a ring gear which is linked to a crank shaft of the engine, a starter motor which is energized so as to be rotated, a pinion gear which transmits a rotation of the starter motor to the ring gear, and a pinion gear movement unit which is energized so as to move the pinion gear in a direction of the ring gear, whereby the pinion gear is engaged to the ring gear, in a state where the engine automatic stop/restart device automatically stops the engine when an engine automatic stop condition is established, and restarts the engine when an engine restart condition is established, and includes an inertially-rotating-restart-decision unit which permits or prohibits a restart of the engine, which is inertially rotating after the engine is automatically stopped, in accordance with a detection result of an oil temperature of the engine.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: June 5, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Osamu Ishikawa, Tomohisa Shoda
  • Publication number: 20180122639
    Abstract: A method for manufacturing a bonded SOI wafer, including depositing a polycrystalline silicon layer on a base wafer, forming an insulator film on a bond wafer, bonding the bond wafer and a polished surface of the silicon layer with the insulator film interposed, and thinning the bond wafer, wherein a silicon single crystal wafer having a resistivity of 100 ?-cm or more is the base wafer, the step of depositing the silicon layer includes a stage of forming an oxide film on the surface of the base wafer, and the silicon layer is deposited between 1050° C. and 1200° C. Accordingly, the method enables a polycrystalline silicon layer to be deposited while preventing the progress of single crystallization even through a heat treatment step in the SOI wafer manufacturing process or a heat treatment step in the device manufacturing process and can improve throughput in the polycrystalline silicon layer depositing step.
    Type: Application
    Filed: March 14, 2016
    Publication date: May 3, 2018
    Applicant: SHIN-ETSU HANDOTAI CO., LTD.
    Inventors: Norihiro KOBAYASHI, Osamu ISHIKAWA, Kenji MEGURO, Taishi WAKABAYASHI, Hiroyuki OONISHI
  • Publication number: 20180095088
    Abstract: An object of the present invention is to improve visibility by reducing background noise in order to accurately detect the signal from a target substance in an immunochromatographic device. The immunochromatographic device comprises a membrane having a detection region, to which an antibody or antigen serving as a capturing substance capable of capturing a target substance is immobilized, for detecting the target substance by using an antigen or antibody labeled with a labeling carrier that is a colored particle to form a complex of the capturing substance-target substance-labeled antigen or antibody in the capturing substance-immobilized detection region on the device, based on color of the labeling carrier, wherein a colorant having a color complementary to the color of the labeling carrier is allowed to be contained in a dry state in a constituent member of the device such that the colorant is developed together with a specimen when the specimen is developed on the device.
    Type: Application
    Filed: April 27, 2016
    Publication date: April 5, 2018
    Applicant: DENKA SEIKEN CO., LTD
    Inventors: Osamu Ishikawa, Risa KOHIYAMA, Takashi MIYAZAWA
  • Publication number: 20180045435
    Abstract: A thermoacoustic cooling device includes a tube in which a working fluid is enclosed; a first stack that generates acoustic waves in the working fluid with use of a temperature gradient; a first high-temperature heat exchanger provided at a first side of the first stack to heat the first side of the first stack; a first low-temperature heat exchanger provided at a second side of the first stack; a second stack in which a temperature gradient is generated by the acoustic waves; a second high-temperature heat exchanger provided at a first side of the second stack, which has a high temperature; a second low-temperature heat exchanger provided at a second side of the second stack, which has a low temperature; and a heat transfer portion configured to connect the second low-temperature heat exchanger to the first low-temperature heat exchanger so as to transfer heat therebetween.
    Type: Application
    Filed: August 8, 2017
    Publication date: February 15, 2018
    Applicants: JTEKT CORPORATION, PUBLIC UNIVERSITY CORPORATION OSAKA CITY UNIVERSITY
    Inventors: Toshiyuki SAITO, Ryouichi TAKAHATA, Tomoyuki TAKEI, Osamu ISHIKAWA
  • Publication number: 20180033681
    Abstract: A bonded semiconductor wafer provided with a single crystal silicon layer on a main surface, wherein the bonded semiconductor wafer has a base wafer composed of a silicon single crystal, and the bonded semiconductor wafer has a first dielectric layer, a polycrystalline silicon layer, a second dielectric layer, and the single crystal silicon layer above the base wafer in this order, with a bonding plane lying between the polycrystalline silicon layer and the second dielectric layer; and wherein a carrier trap layer is formed between the base wafer and the dielectric layer. This provides a bonded semiconductor wafer of a trap-rich type SOI substrate wherein the base wafer can be prevented from lowering the specific resistance due to impurities and influence of electric charge in the BOX oxide film, distortion of radio-frequency fundamental signals and crosstalk signals from one circuit to another circuit are decreased, and the mass-productivity is excellent.
    Type: Application
    Filed: February 5, 2016
    Publication date: February 1, 2018
    Applicant: SHIN-ETSU HANDOTAI CO., LTD.
    Inventors: Osamu ISHIKAWA, Masahiro KATO
  • Publication number: 20170259695
    Abstract: While coolant is used to cool a motor inverter and a generator inverter included in a power drive unit configured to invert power between a battery and a motor/generator in both directions, an EV travel mode and a power generation travel mode are switched according to detection values from sensors in an electrically driven vehicle and including a switching device temperature sensor for a switching device of the inverters and a coolant temperature sensor, thereby controlling the vehicle. A failure of the coolant temperature sensor is detected according to a detection value from the coolant temperature sensor, and, in the EV travel mode, a detection value detected by the switching device temperature sensor for the switching device of the generator inverter is set as a detection value of a temperature of the coolant when the failure of the coolant temperature sensor is detected.
    Type: Application
    Filed: February 14, 2017
    Publication date: September 14, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Osamu ISHIKAWA, Yasufumi OGAWA