Patents by Inventor Taizo Miyazaki

Taizo Miyazaki 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: 11967458
    Abstract: A superconducting coil includes: a winding member 12 that has a side surface 18 along a coil radial direction and is formed by laminating a superconducting tape wire 20 in the coil radial direction by winding; and a bypass 19 that is provided on the side surface 18 of the winding member 12 and electrically connects the superconducting tape wire 20 in the coil radial direction.
    Type: Grant
    Filed: June 30, 2023
    Date of Patent: April 23, 2024
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions Corporation
    Inventors: Sadanori Iwai, Taizo Tosaka, Hiroshi Miyazaki, Kenji Tasaki
  • Patent number: 9487747
    Abstract: Disclosed is a cell culture vessel of the present invention, which is composed of a space enclosed by a housing that supports a medium and a cell attachment part, disposed on the bottom surface of the space, that attaches and supports the cells, the cell attachment part having a cell immobilizing mechanism that guides the cells in the space to the cell attachment part to immobilize there and a cell detachment mechanism that detaches the cells attached in the cell attachment part, the cell immobilizing mechanism having a step of applying a voltage to an electrode disposed in the cell attachment part to generate a heterogeneous electric field in the space, and the cell detachment mechanism having a step of applying a voltage to an electrode disposed in the cell attachment part to induce electrolyte in the space.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: November 8, 2016
    Assignee: HITACHI, LTD.
    Inventors: Guangbin Zhou, Taizo Miyazaki, Ryota Nakajima, Toyoshige Kobayashi, Shizu Matsuoka
  • Publication number: 20150349588
    Abstract: Provided is a bearing electrolytic corrosion countermeasure technology achieving excellent reliability without increasing the number of components.
    Type: Application
    Filed: January 24, 2014
    Publication date: December 3, 2015
    Inventors: Hirooki TOKOI, Yuji ENOMOTO, Kenta DEGUCHI, Taizo MIYAZAKI, Koji OBATA
  • Publication number: 20140186941
    Abstract: Disclosed is a cell culture vessel of the present invention, which is composed of a space enclosed by a housing that supports a medium and a cell attachment part, disposed on the bottom surface of the space, that attaches and supports the cells, the cell attachment part having a cell immobilizing mechanism that guides the cells in the space to the cell attachment part to immobilize there and a cell detachment mechanism that detaches the cells attached in the cell attachment part, the cell immobilizing mechanism having a step of applying a voltage to an electrode disposed in the cell attachment part to generate a heterogeneous electric field in the space, and the cell detachment mechanism having a step of applying a voltage to an electrode disposed in the cell attachment part to induce electrolyte in the space.
    Type: Application
    Filed: June 5, 2012
    Publication date: July 3, 2014
    Inventors: Guangbin Zhou, Taizo Miyazaki, Ryota Nakajima, Toyoshige Kobayashi, Shizu Matsuoka
  • Patent number: 8347282
    Abstract: An embedded controller development tool which generates an interface means for preserving and outputting a control data calculated by the control operation means based on a specific computational procedure, and providing said control data to a plurality of control operation means including said control operation means; wherein the control operation means is described as a function in the source code of the program, the reference data used for calculation by said control operation is an argument of the function, said control data calculated by said control operation means is the argument of the function which points the return value or the address of said function.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: January 1, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Kentaro Yoshimura, Taizo Miyazaki, Takanori Yokoyama
  • Publication number: 20100252341
    Abstract: The electric rotary machine comprises a stator and a rotor. The rotor is incorporated rotatablly inside the stator keeping an air gap between the rotor and the stator, the rotor being divided into at least two of a first rotor and a second rotor in a direction of a rotating shaft thereof, and each of the first and second rotors having field magnets with different polarities disposed alternatively in a rotating direction of the rotor. A magnetic flux control mechanism controls effective magnetic fluxes by varying positions of the field magnets of the second rotor relatively with respect to that of the first rotor in at least the rotating direction of the rotor. The stator core is provided with a magnetoresistive layer that is interposed in the path of the effective magnetic fluxes in the stator core.
    Type: Application
    Filed: March 1, 2010
    Publication date: October 7, 2010
    Inventors: Kohin SHU, Taizo Miyazaki, Akiyoshi Komura, Noriaki Hino
  • Publication number: 20100164422
    Abstract: An electric rotary machine is disclosed which can adjust relative angles of sub-rotors continuously and regardless of torque direction without generating an attractive force between the field magnets of the sub-rotors. The electric rotary machine includes: a stator having a winding; a dual rotor which is rotatably disposed with a gap from the stator and divided axially along a shaft into a first rotor and a second rotor each having field magnets with different polarities arranged alternately in a rotation direction; a mechanism for varying the axial position of the second rotor relative to the first rotor continuously; and a non-magnetic member located between the first rotor and the second rotor.
    Type: Application
    Filed: December 23, 2009
    Publication date: July 1, 2010
    Inventors: Kohin SHU, Taizo MIYAZAKI, Houng Joong KIM, Satoru OKABE
  • Publication number: 20090192013
    Abstract: An object of the present invention is to provide a hybrid vehicle having a simple system configuration. The hybrid vehicle comprises an engine 10; a continuously variable transmission 20 connected to an output shaft of the engine 10; and a rotating electric machine 100 operating as a motor or a generator. The rotating electric machine 100 is the permanent magnet field type having field-generating permanent magnets 124 in a rotor. The rotating electric machine 100 is also the variable flux type having a first rotor 120A and a second rotor 120B rotatably provided on the inner circumference of a stator 110 so that the amount of effective magnetic flux can be varied through means for adjusting the relative phase angle by changing a magnetic pole position by permanent magnets of the second rotor 120B relative to a magnetic pole position by permanent magnets of the first rotor 120A.
    Type: Application
    Filed: November 24, 2008
    Publication date: July 30, 2009
    Applicant: HITACHI, LTD.
    Inventors: Houng Joong Kim, Taizo Miyazaki
  • Publication number: 20080313614
    Abstract: An embedded controller development tool which generates an interface means for preserving and outputting a control data calculated by the control operation means based on a specific computational procedure, and providing said control data to a plurality of control operation means including said control operation means; wherein the control operation means is described as a function in the source code of the program, the reference data used for calculation by said control operation is an argument of the function, said control data calculated by said control operation means is the argument of the function which points the return value or the address of said function.
    Type: Application
    Filed: August 20, 2008
    Publication date: December 18, 2008
    Applicant: HITACHI, LTD.
    Inventors: Kentaro YOSHIMURA, Taizo Miyazaki, Takanori Yokoyama
  • Patent number: 7444985
    Abstract: A transient correction of an ignition timing is precisely executed even in a transient state. The ignition timing at a stationary time is computed on the basis of an operating state detected by an operating state detecting means, and the ignition timing at the stationary time is corrected by a transient time ignition timing correcting means defined by a transfer function G(s).
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: November 4, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Kunihiko Suzuki, Taizo Miyazaki, Mamoru Nemoto
  • Patent number: 7290529
    Abstract: A spark advance controller capable of controlling spark advance in an internal combustion engine with high accuracy without requiring a larger number of data maps and performing laborious optimization tests using an actual engine. In the spark advance controller, map data for controlling the spark advance is computed by a numerical simulator simulating an internal combustion engine, and the map data for spark advance control is approximated with a regression model. The spark advance is computed by using the regression model depending on the detected operating conditions.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: November 6, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Kunihiko Suzuki, Taizo Miyazaki, Mamoru Nemoto, Takuya Shiraishi
  • Publication number: 20070137618
    Abstract: A transient correction of an ignition timing is precisely executed even in a transient state. The ignition timing at a stationary time is computed on the basis of an operating state detected by an operating state detecting means, and the ignition timing at the stationary time is corrected by a transient time ignition timing correcting means defined by a transfer function G(s).
    Type: Application
    Filed: December 18, 2006
    Publication date: June 21, 2007
    Applicant: Hitachi, Ltd.
    Inventors: Kunihiko Suzuki, Taizo Miyazaki, Mamoru Nemoto
  • Publication number: 20070136015
    Abstract: A diagnosis apparatus for diagnosing state of equipment includes an interval estimation unit which receives time series information from diagnosis object equipment and detects a change point of the time series information, a state estimation unit which receives the time series information from the diagnosis object equipment and change point information from the interval estimation unit, divides the time series information temporally with the change point as a boundary, and estimates a state of the equipment from before and after relation of an interval or relation with another time series information per divided interval, and an equipment diagnosis unit which diagnoses the equipment according to an estimated state.
    Type: Application
    Filed: November 29, 2006
    Publication date: June 14, 2007
    Applicant: Hitachi, Ltd.
    Inventors: Hideaki Suzuki, Taizo Miyazaki, Koichiro Tanikoshi
  • Patent number: 7105964
    Abstract: An electric rotating machine has a rotor, a stator and a casing. A planetary roller mechanism constituted by a sun roller, a planet roller, a ring roller and a carrier is provided within the rotor so as to transmit the driving force of the rotor to the outside from a power shaft. Oil is sealed within the rotor or the casing. The planetary roller mechanism may be provided within the casing or at the outside of the rotor and, in this case, oil is sealed within the casing.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: September 12, 2006
    Assignees: Hitachi, Ltd., Sumitomo Heavy Industries, Ltd.
    Inventors: Taizo Miyazaki, Yasuo Morooka, Kiyoji Minegishi, Jun Tamenaga
  • Publication number: 20060157029
    Abstract: A spark advance controller capable of controlling spark advance in an internal combustion engine with high accuracy without requiring a larger number of data maps and performing laborious optimization tests using an actual engine. In the spark advance controller, map data for controlling the spark advance is computed by a numerical simulator simulating an internal combustion engine, and the map data for spark advance control is approximated with a regression model. The spark advance is computed by using the regression model depending on the detected operating conditions.
    Type: Application
    Filed: January 18, 2006
    Publication date: July 20, 2006
    Applicant: Hitachi, Ltd.
    Inventors: Kunihiko Suzuki, Taizo Miyazaki, Mamoru Nemoto, Takuya Shiraishi
  • Patent number: 6995480
    Abstract: Power supply equipment for a motor vehicle, includes a motor generator, an inverter for driving the motor generator, a battery and a capacitor of an electrical double layer, wherein the capacitor is directly connected to a DC side of the inverter and the battery is connected in parallel with the capacitor via a first switching unit. When an engine is started up, the power stored in the capacitor is used, and the switching units are turned off to separate the battery from the start-up of the engine.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: February 7, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Masahiko Amano, Yasuo Morooka, Taizo Miyazaki, Tomoyuki Hanyu
  • Publication number: 20050093370
    Abstract: Power supply equipment for a motor vehicle, comprising a motor generator, an inverter for driving said motor generator, a battery and a capacitor of an electrical double layer, wherein the capacitor is directly connected to a DC side of the inverter and the battery is connected in parallel with the capacitor via a first switching unit. When an engine is started up, the power stored in the capacitor is used, and the switching units are turned off to separate the battery from the start-up of the engine.
    Type: Application
    Filed: December 9, 2004
    Publication date: May 5, 2005
    Applicant: Hitachi, Ltd.
    Inventors: Masahiko Amano, Yasuo Morooka, Taizo Miyazaki, Tomoyuki Hanyu
  • Patent number: 6861767
    Abstract: Power supply equipment for a motor vehicle, includes a motor generator, an inverter for driving the motor generator, a battery and a capacitor of an electrical double layer. The capacitor is directly connected to a DC side of the inverter and the battery is connected in parallel with the capacitor via a first switching unit. When an engine is started up, the power stored in the capacitor is used, and the switching units are turned off to separate the battery from the start-up of the engine.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: March 1, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Masahiko Amano, Yasuo Morooka, Taizo Miyazaki, Tomoyuki Hanyu
  • Patent number: 6833646
    Abstract: A hybrid drive type vehicle having a permanent magnet type synchronous motor can provide high torque characteristics in low revolution speed range of the engine and high power generation characteristics at high revolution speed range of the engine. The hybrid drive type vehicle includes an electric rotary machine being formed with a stator and a rotor. A field magnet of the rotor include a first field magnet and a second field magnet. The first and second field magnets are opposing with a magnetic pole of the stator and having a mechanism for varying a phase of a magnetic pole resulting from combination of the first and second field magnets relative to the magnetic pole of the first field magnet depending upon direction of a torque of the rotor.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: December 21, 2004
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Kim Houng Joong, Kazuo Tahara, Kou Ajima, Koki Ueta, Toshiyuki Innami, Noriaki Hino, Taizo Miyazaki, Tomoyuki Hanyu, Kousaku Ohno
  • Patent number: 6808468
    Abstract: A composite power transmission mechanism 10, comprising the combination of a planetary gear unit 15 and a differential planetary gear mechanism 16, wherein a planetary gear is connected with a drive shaft of a vehicle, while other three gears let the shafts of the motor 12, a motor 13 and an engine 11 rotate respectively. The drive shaft of the vehicle is made to rotate by means of the planetary gear of the composite power transmission mechanism; since the rotation of different sources of a driving force, i.e., those of the motor 12, the motor 13 and the engine 11, can be transmitted to one another by only one meshing of the gears, the mechanical loss that is dependent on the number of times of the meshing of the gears can be reduced to a minimum.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: October 26, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Taizo Miyazaki, Tomoyuki Haniu, Ryoso Masaki, Masahiko Amano, Yasuo Morooka