Patents by Inventor Yukihiro Sano

Yukihiro Sano 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: 8827656
    Abstract: Motor control apparatus for an electric oil pump includes the control command generating section configured to drive the motor control section by the first current command signal obtained from the fixed second target torque signal of the second signal generating section in a first stage, when the control command generating section receives the start command of the motor from the host control device when engine stops, to output the sum signal of the first current command signal and the second current command signal to the current control section, and to drive the motor control section by the third current command signal in a second stage, and to switch the output of the target torque switching section from the fixed second target torque signal to the first target torque signal of the first signal generating section in a third stage.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: September 9, 2014
    Assignees: JATCO Ltd, Nissan Motor Co., Ltd.
    Inventors: Yukihiro Sano, Ippei Suzuki, Yuukou Nojiri, Jyunichi Noda
  • Patent number: 8804248
    Abstract: An optical element includes a container including first and second end face walls, a side face wall, and an accommodating chamber inside the walls; first and second liquids enclosed in the chamber; a first electrode provided on a surface of the first end face wall; a second electrode provided on a surface of the second end face wall; an insulating film provided on a surface of the second electrode; and a unit configured to apply a voltage. The shape of an interface between the liquids is changed by a voltage application, and a light transmission path, the center of which is a virtual axis passing through the end face walls in the thickness direction of the container, is formed in a portion of the second liquid. An opening having a diameter the same as or larger than the maximum diameter of the transmission path is provided in the first electrode.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: August 12, 2014
    Assignee: Sony Corporation
    Inventors: Kazuhiro Tanaka, Keita Kaifu, Yukihiro Sano, Yukihiro Mitsuda
  • Patent number: 8618765
    Abstract: In an apparatus for controlling a sensorless electric motor that drives an electric oil pump, in a case where a rotational speed of the motor deviates from a first range defined between a first upper limit value and a first lower limit value, a rotational speed limiting section generates a current command signal acting for controlling the rotational speed of the motor to suppress deviation of the rotational speed of the motor from the first range, and in a case where deviation of the rotational speed of the motor from the first range is continued for a predetermined time or more, the rotational speed limiting section sets a second range defined between a second upper limit value and a second lower limit value which are respectively displaced from the first upper limit value and the first lower limit value in a direction in which the deviation is continued.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: December 31, 2013
    Assignee: Jatco Ltd
    Inventors: Yukihiro Sano, Yuukou Nojiri, Ippei Suzuki, Jyunichi Noda
  • Patent number: 8488249
    Abstract: An optical element includes a first liquid having polarity or electrical conductivity, a second liquid that is immiscible with the first liquid, a first substrate portion, a second substrate portion, a sidewall portion connecting the first substrate portion to the second substrate portion, and an accommodating portion constituted by the first substrate portion, the second substrate portion, and the sidewall portion and sealing the first liquid and the second liquid therein. The first substrate portion includes a first electrode, the second substrate portion includes a second electrode, and the sidewall portion includes a third electrode.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: July 16, 2013
    Assignee: Sony Corporation
    Inventors: Yukihiro Sano, Keita Kaifu, Kazuhiro Tanaka, Yukihiro Mitsuda
  • Patent number: 8480537
    Abstract: The second clutch is caused to transition to an engaged state after setting the second clutch in a slip state when the vehicle starts in the hybrid start mode, the temperature of a magnet of the electric motor is estimated based on the temperature of the hydraulic oil and an operating condition of the electric motor when the second clutch is controlled to be in the slip state; and an output torque and a lower limit rotation speed of the electric motor is restricted and reduced when the estimated temperature of the magnet exceeds a restrictive temperature.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: July 9, 2013
    Assignee: Jatco Ltd
    Inventors: Yukihiro Sano, Ippei Suzuki, Yuukou Nojiri
  • Publication number: 20130010369
    Abstract: An optical element includes a container including first and second end face walls, a side face wall, and an accommodating chamber inside the walls; first and second liquids enclosed in the chamber; a first electrode provided on a surface of the first end face wall; a second electrode provided on a surface of the second end face wall; an insulating film provided on a surface of the second electrode; and a unit configured to apply a voltage. The shape of an interface between the liquids is changed by a voltage application, and a light transmission path, the center of which is a virtual axis passing through the end face walls in the thickness direction of the container, is formed in a portion of the second liquid. An opening having a diameter the same as or larger than the maximum diameter of the transmission path is provided in the first electrode.
    Type: Application
    Filed: September 12, 2012
    Publication date: January 10, 2013
    Applicant: Sony Corporation
    Inventors: Kazuhiro Tanaka, Keita Kaifu, Yukihiro Sano, Yukihiro Mitsuda
  • Patent number: 8279528
    Abstract: An optical element includes a container including first and second end face walls, a side face wall, and an accommodating chamber inside the walls; first and second liquids enclosed in the chamber; a first electrode provided on a surface of the first end face wall; a second electrode provided on a surface of the second end face wall; an insulating film provided on a surface of the second electrode; and a unit configured to apply a voltage. The shape of an interface between the liquids is changed by a voltage application, and a light transmission path, the center of which is a virtual axis passing through the end face walls in the thickness direction of the container, is formed in a portion of the second liquid. An opening having a diameter the same as or larger than the maximum diameter of the transmission path is provided in the first electrode.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: October 2, 2012
    Assignee: Sony Corporation
    Inventors: Kazuhiro Tanaka, Keita Kaifu, Yukihiro Sano, Yukihiro Mitsuda
  • Patent number: 8189266
    Abstract: An optical element includes a container including first and second end face walls, a side face wall, and an accommodating chamber inside the walls; first and second liquids enclosed in the chamber; a first electrode provided on a surface of the first end face wall; a second electrode provided on a surface of the second end face wall; an insulating film provided on a surface of the second electrode; and a unit configured to apply a voltage. The shape of an interface between the liquids is changed by a voltage application, and a light transmission path, the center of which is a virtual axis passing through the end face walls in the thickness direction of the container, is formed in a portion of the second liquid. An opening having a diameter the same as or larger than the maximum diameter of the transmission path is provided in the first electrode.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: May 29, 2012
    Assignee: Sony Corporation
    Inventors: Kazuhiro Tanaka, Keita Kaifu, Yukihiro Sano, Yukihiro Mitsuda
  • Publication number: 20120108385
    Abstract: The second clutch is caused to transition to an engaged state after setting the second clutch in a slip state when the vehicle starts in the hybrid start mode, the temperature of a magnet of the electric motor is estimated based on the temperature of the hydraulic oil and an operating condition of the electric motor when the second clutch is controlled to be in the slip state; and an output torque and a lower limit rotation speed of the electric motor is restricted and reduced when the estimated temperature of the magnet exceeds a restrictive temperature.
    Type: Application
    Filed: October 26, 2011
    Publication date: May 3, 2012
    Inventors: Yukihiro SANO, Ippei Suzuki, Yuukou Nojiri
  • Publication number: 20120075714
    Abstract: An optical element includes a container including first and second end face walls, a side face wall, and an accommodating chamber inside the walls; first and second liquids enclosed in the chamber; a first electrode provided on a surface of the first end face wall; a second electrode provided on a surface of the second end face wall; an insulating film provided on a surface of the second electrode; and a unit configured to apply a voltage. The shape of an interface between the liquids is changed by a voltage application, and a light transmission path, the center of which is a virtual axis passing through the end face walls in the thickness direction of the container, is formed in a portion of the second liquid. An opening having a diameter the same as or larger than the maximum diameter of the transmission path is provided in the first electrode.
    Type: Application
    Filed: December 7, 2011
    Publication date: March 29, 2012
    Applicant: Sony Corporation
    Inventors: Kazuhiro Tanaka, Keita Kaifu, Yukihiro Sano, Yukihiro Mitsuda
  • Publication number: 20120062164
    Abstract: In an apparatus for controlling a sensorless electric motor that drives an electric oil pump, in a case where a rotational speed of the motor deviates from a first range defined between a first upper limit value and a first lower limit value, a rotational speed limiting section generates a current command signal acting for controlling the rotational speed of the motor to suppress deviation of the rotational speed of the motor from the first range, and in a case where deviation of the rotational speed of the motor from the first range is continued for a predetermined time or more, the rotational speed limiting section sets a second range defined between a second upper limit value and a second lower limit value which are respectively displaced from the first upper limit value and the first lower limit value in a direction in which the deviation is continued.
    Type: Application
    Filed: September 12, 2011
    Publication date: March 15, 2012
    Inventors: Yukihiro SANO, Yuukou NOJIRI, Ippei SUZUKI, Jyunichi NODA
  • Publication number: 20120063922
    Abstract: Motor control apparatus for an electric oil pump includes the control command generating section configured to drive the motor control section by the first current command signal obtained from the fixed second target torque signal of the second signal generating section in a first stage, when the control command generating section receives the start command of the motor from the host control device when engine stops, to output the sum signal of the first current command signal and the second current command signal to the current control section, and to drive the motor control section by the third current command signal in a second stage, and to switch the output of the target torque switching section from the fixed second target torque signal to the first target torque signal of the first signal generating section in a third stage.
    Type: Application
    Filed: September 12, 2011
    Publication date: March 15, 2012
    Inventors: Yukihiro SANO, Ippei Suzuki, Yuukou Nojiri, Jyunichi Noda
  • Patent number: 8089699
    Abstract: An optical element includes a container including first and second end face walls, a side face wall, and an accommodating chamber inside the walls; first and second liquids enclosed in the chamber; a first electrode provided on a surface of the first end face wall; a second electrode provided on a surface of the second end face wall; an insulating film provided on a surface of the second electrode; and a unit configured to apply a voltage. The shape of an interface between the liquids is changed by a voltage application, and a light transmission path, the center of which is a virtual axis passing through the end face walls in the thickness direction of the container, is formed in a portion of the second liquid. An opening having a diameter the same as or larger than the maximum diameter of the transmission path is provided in the first electrode.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: January 3, 2012
    Assignee: Sony Corporation
    Inventors: Kazuhiro Tanaka, Keita Kaifu, Yukihiro Sano, Yukihiro Mitsuda
  • Patent number: 8059343
    Abstract: An optical element includes a first liquid; a second liquid that is immiscible with the first liquid and that has polarity or electrical conductivity; a first substrate portion; a second substrate portion; a sidewall portion; a second electrode disposed on one of the second substrate portion and the sidewall portion; and an accommodating portion constituted by the first substrate portion, the second substrate portion, and the sidewall portion and sealing the first liquid and the second liquid therein. The optical element further includes a first film disposed on the first substrate portion side of the accommodating portion and having high affinity with the first liquid, a second film disposed on the second substrate portion side of the accommodating portion and having high affinity with the second liquid, and a third film disposed at the center of the second film and having high affinity with the first liquid.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: November 15, 2011
    Assignee: Sony Corporation
    Inventors: Yukihiro Mitsuda, Yukihiro Sano, Keita Kaifu, Kazuhiro Tanaka
  • Publication number: 20100328781
    Abstract: An optical element includes a container including first and second end face walls, a side face wall, and an accommodating chamber inside the walls; first and second liquids enclosed in the chamber; a first electrode provided on a surface of the first end face wall; a second electrode provided on a surface of the second end face wall; an insulating film provided on a surface of the second electrode; and a unit configured to apply a voltage. The shape of an interface between the liquids is changed by a voltage application, and a light transmission path, the center of which is a virtual axis passing through the end face walls in the thickness direction of the container, is formed in a portion of the second liquid. An opening having a diameter the same as or larger than the maximum diameter of the transmission path is provided in the first electrode.
    Type: Application
    Filed: August 31, 2010
    Publication date: December 30, 2010
    Applicant: Sony Corporation
    Inventors: Kazuhiro Tanaka, Keita Kaifu, Yukihiro Sano, Yukihiro Mitsuda
  • Patent number: 7857991
    Abstract: Provided are a dichroic dye composition in which a solubility of the dichroic dye with respect to liquid-crystal is sufficiently high and a wavelength dispersion of absorbance is small in a wide wavelength range, and a black guest-host liquid-crystal composition indicating high order parameters using such a dichroic dye composition and a liquid-crystal element having high contrast. The dichroic dye composition includes at least one dichroic dye selected from Group (I) shown below, at least one dichroic dye selected from Group (II) shown below, and at least one dichroic dye selected from Group (III) shown below.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: December 28, 2010
    Assignee: Sony Corporation
    Inventors: Yasushi Shiga, Yuki Tanaka, Mio Ishida, Kazuhiro Tanaka, Keita Kaifu, Yukihiro Sano
  • Publication number: 20100302613
    Abstract: An optical element includes a first liquid; a second liquid that is immiscible with the first liquid and that has polarity or electrical conductivity; a first substrate portion; a second substrate portion; a sidewall portion; a second electrode disposed on one of the second substrate portion and the sidewall portion; and an accommodating portion constituted by the first substrate portion, the second substrate portion, and the sidewall portion and sealing the first liquid and the second liquid therein. The optical element further includes a first film disposed on the first substrate portion side of the accommodating portion and having high affinity with the first liquid, a second film disposed on the second substrate portion side of the accommodating portion and having high affinity with the second liquid, and a third film disposed at the center of the second film and having high affinity with the first liquid.
    Type: Application
    Filed: August 12, 2010
    Publication date: December 2, 2010
    Applicant: SONY CORPORATION
    Inventors: Yukihiro Mitsuda, Yukihiro Sano, Keita Kaifu, Kazuhiro Tanaka
  • Patent number: 7813049
    Abstract: An optical element includes a container including first and second end face walls, a side face wall, and an accommodating chamber inside the walls; first and second liquids enclosed in the chamber; a first electrode provided on a surface of the first end face wall; a second electrode provided on a surface of the second end face wall; an insulating film provided on a surface of the second electrode; and a unit configured to apply a voltage. The shape of an interface between the liquids is changed by a voltage application, and a light transmission path, the center of which is a virtual axis passing through the end face walls in the thickness direction of the container, is formed in a portion of the second liquid. An opening having a diameter the same as or larger than the maximum diameter of the transmission path is provided in the first electrode.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: October 12, 2010
    Assignee: Sony Corporation
    Inventors: Kazuhiro Tanaka, Keita Kaifu, Yukihiro Sano, Yukihiro Mitsuda
  • Patent number: 7787190
    Abstract: An optical element includes a first liquid; a second liquid that is immiscible with the first liquid and that has polarity or electrical conductivity; a first substrate portion; a second substrate portion; a sidewall portion; a second electrode disposed on one of the second substrate portion and the sidewall portion; and an accommodating portion constituted by the first substrate portion, the second substrate portion, and the sidewall portion and sealing the first liquid and the second liquid therein. The optical element further includes a first film disposed on the first substrate portion side of the accommodating portion and having high affinity with the first liquid, a second film disposed on the second substrate portion side of the accommodating portion and having high affinity with the second liquid, and a third film disposed at the center of the second film and having high affinity with the first liquid.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: August 31, 2010
    Assignee: Sony Corporation
    Inventors: Yukihiro Mitsuda, Yukihiro Sano, Keita Kaifu, Kazuhiro Tanaka
  • Publication number: 20100188730
    Abstract: An optical element includes a container including first and second end face walls, a side face wall, and an accommodating chamber inside the walls; first and second liquids enclosed in the chamber; a first electrode provided on a surface of the first end face wall; a second electrode provided on a surface of the second end face wall; an insulating film provided on a surface of the second electrode; and a unit configured to apply a voltage. The shape of an interface between the liquids is changed by a voltage application, and a light transmission path, the center of which is a virtual axis passing through the end face walls in the thickness direction of the container, is formed in a portion of the second liquid. An opening having a diameter the same as or larger than the maximum diameter of the transmission path is provided in the first electrode.
    Type: Application
    Filed: March 31, 2010
    Publication date: July 29, 2010
    Applicant: Sony Corporation
    Inventors: Kazuhiro Tanaka, Keita Kaifu, Yukihiro Sano, Yukihiro Mitsuda