Patents by Inventor Naoyasu Ikeda

Naoyasu Ikeda 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).

  • Publication number: 20200355264
    Abstract: A lockup disengagement control device for an automatic transmission including a torque converter including a lockup clutch, and a lockup control section, the lockup disengagement control device includes: when a brake is operated from a brake OFF to a brake ON during a coast traveling in an engagement state of the lockup clutch, the lockup control section being configured to sense an initial deceleration by the brake ON operation, and to set a lockup release vehicle speed to be higher as an absolute value of the initial deceleration is greater, and when a vehicle speed is sensed to be equal to or smaller than the set lockup release vehicle speed in a middle of a brake deceleration scene by the brake ON operation, the lockup control section being configured to disengage the lockup clutch.
    Type: Application
    Filed: January 17, 2019
    Publication date: November 12, 2020
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Koji SAITO, Akira NAKAINKYO, Naoyasu IKEDA, Xuming WANG
  • Patent number: 10746294
    Abstract: A control device for a continuously variable transmission includes a belt type continuously variable transmission and a controller. The controller is configured to calculate an actual gear shift ratio based on rotation speed sensor values from a primary rotation speed sensor and a secondary rotation speed sensor, and to perform gear shift ratio control using feedback control to converge the actual gear shift ratio to a target gear shift ratio. The controller is further configured to stop calculation of the actual gear shift ratio when one of the rotation speed sensor values is less than a first threshold value determined based on a lower limit value of sensor detection accuracy, and stop calculation of the actual gear shift ratio even when one of the rotation speed sensor values is the first threshold value or greater, when a deceleration level of the drive wheel is a prescribed deceleration level or greater.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: August 18, 2020
    Assignees: JATCO LTD., NISSAN MOTOR CO., LTD.
    Inventors: Naoyasu Ikeda, Geunseok Ryu
  • Publication number: 20190249774
    Abstract: A control device for a continuously variable transmission includes a belt type continuously variable transmission and a controller. The controller is configured to calculate an actual gear shift ratio based on rotation speed sensor values from a primary rotation speed sensor and a secondary rotation speed sensor, and to perform gear shift ratio control using feedback control to converge the actual gear shift ratio to a target gear shift ratio. The controller is further configured to stop calculation of the actual gear shift ratio when one of the rotation speed sensor values is less than a first threshold value determined based on a lower limit value of sensor detection accuracy, and stop calculation of the actual gear shift ratio even when one of the rotation speed sensor values is the first threshold value or greater, when a deceleration level of the drive wheel is a prescribed deceleration level or greater.
    Type: Application
    Filed: July 27, 2017
    Publication date: August 15, 2019
    Inventors: Naoyasu IKEDA, Geunseok RYU
  • Patent number: 9895958
    Abstract: A control device for a vehicle has a compressor for an air-conditioning device that is driven by a vehicle drive source, and a condenser for the air-conditioning device that is disposed at a front side of the vehicle. A request torque to the vehicle drive source is determined as a sum of an air-conditioning load which is spent for driving the compressor and a running torque necessary to drive the vehicle by a drive wheel. The running torque is calculated based on an accelerator manipulation of a driver. A range-position signal indicating a selected range position is read. A value of the air-conditioning load when the air-conditioning device is in operation and the range position is in a Reverse-range is larger than a value of the air-conditioning load when the range position is in a Drive-range with respect to an identical refrigerant pressure of the air-conditioning device.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: February 20, 2018
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Naoyasu Ikeda, Ryosuke Ito
  • Patent number: 9785239
    Abstract: To provide a display device and the like capable of assisting operations by effectively presenting a sense of texture to the skin of human beings while suppressing generation of unpleasant noises. The display device includes: a visual sense display unit which displays an operation screen to be a target of touch operations done by a user by image signals supplied from outside; and a plate-type tactual sense presenting unit which is disposed on the upper side of the visual sense display unit and presents a tactual sense that can be perceived by the user on the operation screen. The tactual sense presenting unit includes X-electrodes and Y-electrodes which exhibit transparency for visible light rays and operate by voltage signals supplied from outside, and a resin exhibiting transparency for visible light rays is filled in a layered-state gap between the visual sense display unit and the tactual sense presenting unit.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: October 10, 2017
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventors: Hiroshi Haga, Futoshi Nakanishi, Naoyasu Ikeda
  • Patent number: 9609790
    Abstract: A hybrid vehicle has an internal combustion engine and a motor as a driving source, a transmission that changes a speed of rotation of the internal combustion engine or motor and transmits the rotation to driving wheels of the vehicle, a high-voltage battery that supplies power to the motor through an inverter, a cooling mechanism equipped with a pump to circulate a coolant and thereby cool the inverter, a coolant temperature measurement device that detects or estimates a temperature of the coolant, a low-voltage battery that supplies power to the pump, and a converter through which power is supplied from the high-voltage battery to the pump.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: March 28, 2017
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Naoyasu Ikeda, Yoshinori Sugita, Yutaka Kobayashi, Mikio Nozaki, Shigeyuki Kiyota
  • Patent number: 9527506
    Abstract: A control device for a hybrid vehicle having an engine, a motor, a clutch and an air conditioner, the engine and the motor being connected to each other via the clutch, the air conditioner having a compressor driven by the engine, has a controller. The hybrid vehicle has an EV mode in which the engine is disconnected from the motor by release of the clutch, and an HEV mode in which the engine rotates together with the motor by engagement of the clutch. The controller is configured to execute a diagnosis of whether the clutch is in a released state during selection of the EV mode. When the HEV mode is selected in response to an operation request for the air conditioner, the controller temporality switches the running mode to the EV mode based on a running history of the hybrid vehicle in a stop state of the hybrid vehicle.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: December 27, 2016
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Naoyasu Ikeda, Kenichi Saga
  • Patent number: 9516298
    Abstract: In a three-dimensional image display device for displaying color three-dimensional images, a fly eye lens, a display panel, and a light source are provided in this order from the observer side. A display panel has four pixels arrayed in a (2×2) matrix correlated with one lens element of the fly eye lens. In the event that j is a natural number, a pixel magnifying projection width e in a second direction is set in a range of the following expression according to mean interpupillary distance Y of the observers.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: December 6, 2016
    Assignee: NLT Technologies, Ltd.
    Inventors: Shin-ichi Uehara, Naoyasu Ikeda, Nobuaki Takanashi
  • Publication number: 20160244051
    Abstract: A control device for a hybrid vehicle having an engine, a motor, a clutch and an air conditioner, the engine and the motor being connected to each other via the clutch, the air conditioner having a compressor driven by the engine, has a controller. The hybrid vehicle has an EV mode in which the engine is disconnected from the motor by release of the clutch, and an HEV mode in which the engine rotates together with the motor by engagement of the clutch. The controller is configured to execute a diagnosis of whether the clutch is in a released state during selection of the EV mode. When the HEV mode is selected in response to an operation request for the air conditioner, the controller temporality switches the running mode to the EV mode based on a running history of the hybrid vehicle in a stop state of the hybrid vehicle.
    Type: Application
    Filed: September 30, 2013
    Publication date: August 25, 2016
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Naoyasu Ikeda, Kenichi Saga
  • Publication number: 20160236540
    Abstract: A control device for a vehicle has a compressor for an air-conditioning device that is driven by a vehicle drive source, and a condenser for the air-conditioning device that is disposed at a front side of the vehicle. A request torque to the vehicle drive source is determined as a sum of an air-conditioning load which is spent for driving the compressor and a running torque necessary to drive the vehicle by a drive wheel. The running torque is calculated based on an accelerator manipulation of a driver. A range-position signal indicating a selected range position is read. A value of the air-conditioning load when the air-conditioning device is in operation and the range position is in a Reverse-range is larger than a value of the air-conditioning load when the range position is in a Drive-range with respect to an identical refrigerant pressure of the air-conditioning device.
    Type: Application
    Filed: September 30, 2013
    Publication date: August 18, 2016
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Naoyasu IKEDA, Ryosuke ITO
  • Publication number: 20160212885
    Abstract: A hybrid vehicle has an internal combustion engine and a motor as a driving source, a transmission that changes a speed of rotation of the internal combustion engine or motor and transmits the rotation to driving wheels of the vehicle, a high-voltage battery that supplies power to the motor through an inverter, a cooling mechanism equipped with a pump to circulate a coolant and thereby cool the inverter, a coolant temperature measurement device that detects or estimates a temperature of the coolant, a low-voltage battery that supplies power to the pump, and a converter through which power is supplied from the high-voltage battery to the pump.
    Type: Application
    Filed: September 27, 2013
    Publication date: July 21, 2016
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Naoyasu Ikeda, Yoshinori Sugita, Yutaka Kobayashi, Mikio Nozaki, Shigeyuki Kiyota
  • Publication number: 20160154462
    Abstract: To provide a display device and the like capable of assisting operations by effectively presenting a sense of texture to the skin of human beings while suppressing generation of unpleasant noises. The display device includes: a visual sense display unit which displays an operation screen to be a target of touch operations done by a user by image signals supplied from outside; and a plate-type tactual sense presenting unit which is disposed on the upper side of the visual sense display unit and presents a tactual sense that can be perceived by the user on the operation screen. The tactual sense presenting unit includes X-electrodes and Y-electrodes which exhibit transparency for visible light rays and operate by voltage signals supplied from outside, and a resin exhibiting transparency for visible light rays is filled in a layered-state gap between the visual sense display unit and the tactual sense presenting unit.
    Type: Application
    Filed: November 30, 2015
    Publication date: June 2, 2016
    Applicant: NLT TECHNOLOGIES, LTD.
    Inventors: Hiroshi HAGA, Futoshi NAKANISHI, Naoyasu IKEDA
  • Patent number: 8814534
    Abstract: Oil supply apparatus having an electric motor, an oil pump driven by the electric motor and supplying oil to a transmission, an oil temperature sensor detecting oil temperature, and a controller setting a drive torque value and controlling the electric motor so that the electric motor outputs a drive torque according to a detection oil temperature. The controller is configured to perform rotation speed control of the electric motor so that when judging that there is a possibility that the detection oil temperature and oil temperature close to the oil pump are different at electric motor starting, the electric motor rotates at a lower rotation speed than where the electric motor rotates by the drive torque value according to the detection oil temperature before performing the electric motor control by which the electric motor outputs the drive torque according to the detection oil temperature.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: August 26, 2014
    Assignees: Jatco Ltd, Nissan Motor Co., Ltd.
    Inventor: Naoyasu Ikeda
  • Patent number: 8614774
    Abstract: In an image display device where a lenticular lens, a display panel, and a light source are provided in order from a viewer side, when cylindrical lenses of the lenticular lens are arrayed in a horizontal direction, in first-viewpoint pixels and second-viewpoint pixels of the display panel, openings whose sides which intersect with straight lines in the horizontal direction are not parallel to a vertical direction are formed. And, a shape of the openings of a pair of pixels mutually adjacent in the vertical direction is made line-symmetric with respect to edges of the pixels extending in the horizontal direction as an axis.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: December 24, 2013
    Assignee: NLT Technologies, Ltd.
    Inventors: Shin-ichi Uehara, Masao Iriguchi, Naoyasu Ikeda, Nobuaki Takanashi
  • Patent number: 8379178
    Abstract: In an image display device where a lenticular lens, a display panel, and a light source are provided in order from a viewer side, when cylindrical lenses of the lenticular lens are arrayed in a horizontal direction, in first-viewpoint pixels and second-viewpoint pixels of the display panel, openings whose sides which intersect with straight lines in the horizontal direction are not parallel to a vertical direction are formed. And, a shape of the openings of a pair of pixels mutually adjacent in the vertical direction is made line-symmetric with respect to edges of the pixels extending in the horizontal direction as an axis.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: February 19, 2013
    Assignee: NLT Technologies, Ltd.
    Inventors: Shin-ichi Uehara, Masao Iriguchi, Naoyasu Ikeda, Nobuaki Takanashi
  • Patent number: 8248406
    Abstract: A three-dimensional image/two-dimensional image display device includes a plurality of display pixels, and a lenticular lens for three-dimensional display. Each display pixel is consisted of M×N number of sub-pixels to be viewed from N view points. A pitch a of sub-pixels arranged in the longitudinal direction of ridge projection of the lenticular lens and a pitch b of the sub-pixels arranged in a direction orthogonal to the longitudinal direction of the lenticular lens satisfy the following expression. The M×N number of sub-pixels included in each of said display pixels are formed within a square area.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: August 21, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Shin-ichi Uehara, Naoyasu Ikeda, Nobuaki Takanashi
  • Patent number: 8199173
    Abstract: In a liquid crystal display apparatus, one display pixel has a total of six sub pixels, namely, a red sub pixel for a left eye, a green sub pixel for the left eye, a blue sub pixel for the left eye, a red sub pixel for a right eye, a green sub pixel for the right eye, and a blue sub pixel for the right eye. Those sub pixels are arranged in a square area, two in a horizontal direction along which gate lines extend, three in a vertical direction along which data lines extend. The polarity of the data lines with respect to a potential of a common electrode is inverted every time three gate lines are scanned and every frame.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: June 12, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Masao Iriguchi, Naoyasu Ikeda, Shin-ichi Uehara
  • Patent number: 8174473
    Abstract: A three-dimensional image/two-dimensional image display device includes a plurality of display pixels, and a lenticular lens for three-dimensional display. Each display pixel is consisted of M×N number of sub-pixels to be viewed from N view points. A pitch a of sub-pixels arranged in the longitudinal direction of ridge projection of the lenticular lens and a pitch b of the sub-pixels arranged in a direction orthogonal to the longitudinal direction of the lenticular lens satisfy the following expression. The M×N number of sub-pixels included in each of said display pixels are formed within a square area.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: May 8, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Shin-ichi Uehara, Naoyasu Ikeda, Nobuaki Takanashi
  • Publication number: 20120063920
    Abstract: Oil supply apparatus having an electric motor, an oil pump driven by the electric motor and supplying oil to a transmission, an oil temperature sensor detecting oil temperature, and a controller setting a drive torque value and controlling the electric motor so that the electric motor outputs a drive torque according to a detection oil temperature. The controller is configured to perform rotation speed control of the electric motor so that when judging that there is a possibility that the detection oil temperature and oil temperature close to the oil pump are different at electric motor starting, the electric motor rotates at a lower rotation speed than where the electric motor rotates by the drive torque value according to the detection oil temperature before performing the electric motor control by which the electric motor outputs the drive torque according to the detection oil temperature.
    Type: Application
    Filed: September 7, 2011
    Publication date: March 15, 2012
    Inventor: Naoyasu IKEDA
  • Publication number: 20120044567
    Abstract: In a three-dimensional image display device for displaying color three-dimensional images, a fly eye lens, a display panel, and a light source are provided in this order from the observer side. A display panel has four pixels arrayed in a (2×2) matrix correlated with one lens element of the fly eye lens. In the event that j is a natural number, a pixel magnifying projection width e in a second direction is set in a range of the following expression according to mean interpupillary distance Y of the observers.
    Type: Application
    Filed: November 2, 2011
    Publication date: February 23, 2012
    Applicant: NEC CORPORATION
    Inventors: Shin-ichi UEHARA, Naoyasu IKEDA, Nobuaki TAKANASHI