Patents by Inventor Yoshitaka Fujita

Yoshitaka Fujita 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: 20200353819
    Abstract: A brake force control apparatus allocates all of required brake force to a target front wheel friction brake force when the required brake force is equal to or smaller than a maximum regeneration brake force. The apparatus decreases the target regeneration brake force by a first predetermined amount at a first time point at which a front wheel acceleration varies from a value larger than a first acceleration threshold to a value equal to or smaller than the first acceleration threshold. The apparatus increases the target regeneration brake force in such a manner that the target regeneration brake force coincides with the required brake force, if the front wheel acceleration becomes larger than a second acceleration threshold in a period from the first time point to a second time point at which a predetermined time elapses from the first time point.
    Type: Application
    Filed: May 6, 2020
    Publication date: November 12, 2020
    Inventor: Yoshitaka Fujita
  • Patent number: 10538137
    Abstract: A first active stabilizer is installed on a main drive wheel side, and a second active stabilizer is installed on a subordinate drive wheel side. A control device performs load distribution control when a difference in actual driving force between left and right sides of a vehicle exceeds a threshold value during acceleration. A high-? side is one of the left and right sides with a greater actual driving force, and a low-? side is another of the left and right sides. The load distribution control includes a first mode performed when a vehicle speed is equal to or lower than a first reference value. In the first mode, the control device actuates the first active stabilizer in a direction to lift up the high-? side and actuates the second active stabilizer in a direction to lift up the low-? side.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: January 21, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshitaka Fujita
  • Patent number: 10427671
    Abstract: A vehicle stability control device has: a front active stabilizer installed on a front wheel side; a rear active stabilizer installed on a rear wheel side; a turning device for turning the front and rear wheels; and a control device configured to perform load distribution control in conjunction with turning control that actuates the turning device, when a difference in braking force between left and right sides of the vehicle exceeds a threshold value during braking. A first side is one of the left and right sides with a greater braking force, and a second side is the other of the left and right sides. In the load distribution control, the control device actuates the rear active stabilizer in a direction to lift up the first side and actuates the front active stabilizer in a direction to lift up the second side.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: October 1, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshitaka Fujita
  • Publication number: 20180178610
    Abstract: A first active stabilizer is installed on a main drive wheel side, and a second active stabilizer is installed on a subordinate drive wheel side. A control device performs load distribution control when a difference in actual driving force between left and right sides of a vehicle exceeds a threshold value during acceleration. A high-? side is one of the left and right sides with a greater actual driving force, and a low-? side is another of the left and right sides. The load distribution control includes a first mode performed when a vehicle speed is equal to or lower than a first reference value. In the first mode, the control device actuates the first active stabilizer in a direction to lift up the high-? side and actuates the second active stabilizer in a direction to lift up the low-? side.
    Type: Application
    Filed: October 27, 2017
    Publication date: June 28, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshitaka FUJITA
  • Publication number: 20180111607
    Abstract: A vehicle stability control device has: a front active stabilizer installed on a front wheel side; a rear active stabilizer installed on a rear wheel side; a turning device for turning the front and rear wheels; and a control device configured to perform load distribution control in conjunction with turning control that actuates the turning device, when a difference in braking force between left and right sides of the vehicle exceeds a threshold value during braking. A first side is one of the left and right sides with a greater braking force, and a second side is the other of the left and right sides. In the load distribution control, the control device actuates the rear active stabilizer in a direction to lift up the first side and actuates the front active stabilizer in a direction to lift up the second side.
    Type: Application
    Filed: August 21, 2017
    Publication date: April 26, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshitaka FUJITA
  • Patent number: 9802588
    Abstract: A vehicle control apparatus which performs a travel control of a vehicle during a traffic jam, includes a wheel setting unit configured to set at least one wheel to be a brake wheel to be applied with a braking force during the travel control and at least one wheel to be a non-brake wheel not to be applied with the braking force during the travel control, and a control unit configured to perform the travel control of the vehicle based on a rotation amount of the at least one brake wheel and a rotation amount of the at least one non-brake wheel detected by a wheel speed sensor detecting the rotation amount of a wheel of the vehicle.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: October 31, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Go Inoue, Yoshitaka Fujita
  • Patent number: 9789869
    Abstract: The invention is equipped with a travelable range detection device that detects a travelable range of a vehicle, a traveling control device that controls the vehicle such that the vehicle travels in the travelable range detected by the travelable range detection device, a vehicle control device that controls a behavior of the vehicle, and a controller that executes control to suppress a controlled variable of the traveling control device until a driver's follow-up operation for causing the vehicle to follow the travelable range by the vehicle control device is detected after start of control of the traveling control device.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: October 17, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshitaka Fujita
  • Publication number: 20170057477
    Abstract: A vehicle control apparatus which performs a travel control of a vehicle during a traffic jam, includes a wheel setting unit configured to set at least one wheel to be a brake wheel to be applied with a braking force during the travel control and at least one wheel to be a non-brake wheel not to be applied with the braking force during the travel control, and a control unit configured to perform the travel control of the vehicle based on a rotation amount of the at least one brake wheel and a rotation amount of the at least one non-brake wheel detected by a wheel speed sensor detecting the rotation amount of a wheel of the vehicle.
    Type: Application
    Filed: November 11, 2016
    Publication date: March 2, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Go INOUE, Yoshitaka FUJITA
  • Patent number: 9562166
    Abstract: A structure includes a surface coat layer of which the thickness on a bump such as a weld bead and a weld spatter or an edge portion, possibly formed on the surface of a base, is not greatly different from the thickness on a flat portion. The structure therefore has excellent properties including heat insulation properties and electrical insulation properties. The structure includes a base that is made of a metal, and has a flat portion and at least one of a bump and an edge portion on a surface; and a surface coat layer that is formed from an amorphous inorganic material and particles of a crystalline inorganic material, and covers the surface of the base, the surface coat layer including a first coat portion covering the flat portion and a second coat portion covering the at least one of a bump and an edge portion.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: February 7, 2017
    Assignee: IBIDEN CO., LTD.
    Inventors: Fumiyuki Mutsuda, Yoshitaka Fujita
  • Patent number: 9522661
    Abstract: A vehicle control apparatus which performs a parking control of a vehicle, includes a wheel setting unit configured to set at least one brake wheel which is a wheel to which a braking force is applied during the parking control and at least one non-brake wheel which is a wheel to which the braking force is not applied during the parking control, and a control unit configured to perform the parking control of the vehicle based on a rotation amount of at least one brake wheel and a rotation amount of at least one non-brake wheel detected by a wheel speed sensor detecting the rotation amount of a wheel of the vehicle.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: December 20, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Go Inoue, Yoshitaka Fujita
  • Patent number: 9416283
    Abstract: A solution for forming an organic thin film wherein the total starting amount of metal surfactants (A) and (B) is 0.05 to 50 wt %, the amount of a hydroxyl group-containing compound generated with the progress of the hydrolysis reaction is 20 ppm to 6 wt %, and the amount of a compound (C) that can interact with the metal surfactant is 0.01 ppm to 8 ppm in terms of metal, relative to the total amount of the solution for forming an organic thin film.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: August 16, 2016
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Tomoya Hidaka, Yoshitaka Fujita, Norifumi Nakamoto, Kazuhisa Kumazawa, Eiji Hoshi
  • Publication number: 20160095164
    Abstract: A heater of an embodiment includes a bulb, a filament, a gas, and metallic members. The filament is disposed in the inside portion of the bulb along a tube axis and includes a radiative unit and non-radiative units. The radiative unit performs radiation when applying current. The non-radiative units are disposed at either end of the radiative unit in a tube axis direction, are electrically connected to the radiative unit, and do not perform radiation relative to the radiative unit when applying current. The bulb includes a radiative region and non-radiative regions. The radiative unit is disposed in the radiative region. The non-radiative units are disposed in the non-radiative regions. The metallic members are disposed in the inside portion of the bulb, are thermally conductible, and are disposed in the non-radiative regions.
    Type: Application
    Filed: July 6, 2015
    Publication date: March 31, 2016
    Inventor: Yoshitaka FUJITA
  • Patent number: 9263246
    Abstract: A lamp includes a bulb, a filament, a gas, and a reflective film. The filament is disposed in the interior of the bulb along the tube axis. The gas is filled in the interior of the bulb. The reflective film is formed on the outer circumferential surface of the bulb and reflects a light from the filament toward the interior of the bulb. Further, the reflective film may be formed by depositing a reflective film material containing TiO2, SiO2, and BaSO4 on the outer circumferential surface of the bulb.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: February 16, 2016
    Assignee: Toshiba Lighting & Technology Corporation
    Inventors: Tsuyoshi Ohashi, Masaaki Takatsuka, Yoshitaka Fujita
  • Patent number: 9180406
    Abstract: An exhaust gas processing device includes a cylindrical metallic member and an insulating layer. The insulating layer has a thickness of about 20 ?m to about 400 ?m and is densely formed such that no through pores exist in a thickness direction of the insulating layer. The insulating layer is provided on an inner surface of the cylindrical metallic member.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: November 10, 2015
    Assignee: IBIDEN CO., LTD.
    Inventors: Fumiyuki Mutsuda, Yoshitaka Fujita
  • Publication number: 20150279652
    Abstract: A lamp according to an embodiment includes a bulb, a filament, a gas, and a reflective film. The filament is disposed in the interior of the bulb along the tube axis. The gas is filled in the interior of the bulb. The reflective film is formed on the outer circumferential surface of the bulb and reflects a light from the filament toward the interior of the bulb. Further, the reflective film is formed by depositing a reflective film material containing TiO2, SiO2, and BaSO4 on the outer circumferential surface of the bulb.
    Type: Application
    Filed: January 27, 2015
    Publication date: October 1, 2015
    Applicant: Toshiba Lighting & Technology Corporation
    Inventors: Tsuyoshi Ohashi, Masaaki Takatsuka, Yoshitaka Fujita
  • Publication number: 20150274158
    Abstract: The invention is equipped with a travelable range detection device that detects a travelable range of a vehicle, a traveling control device that controls the vehicle such that the vehicle travels in the travelable range detected by the travelable range detection device, a vehicle control device that controls a behavior of the vehicle, and a controller that executes control to suppress a controlled variable of the traveling control device until a driver's follow-up operation for causing the vehicle to follow the travelable range by the vehicle control device is detected after start of control of the traveling control device.
    Type: Application
    Filed: November 8, 2012
    Publication date: October 1, 2015
    Inventor: Yoshitaka Fujita
  • Publication number: 20150239445
    Abstract: A vehicle control apparatus which performs a parking control of a vehicle, includes a wheel setting unit configured to set at least one brake wheel which is a wheel to which a braking force is applied during the parking control and at least one non-brake wheel which is a wheel to which the braking force is not applied during the parking control, and a control unit configured to perform the parking control of the vehicle based on a rotation amount of at least one brake wheel and a rotation amount of at least one non-brake wheel detected by a wheel speed sensor detecting the rotation amount of a wheel of the vehicle.
    Type: Application
    Filed: February 4, 2015
    Publication date: August 27, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Go INOUE, Yoshitaka FUJITA
  • Patent number: 9079607
    Abstract: A vehicle steering control apparatus in a vehicle including an apparatus changing a tire steer angle independently of steering wheel operation; a detecting device detecting a tire steer angle equivalent value corresponding to the tire steer angle; and a controller is provided. The controller is configured to learn a steering wheel angle neutral point; determine if the detecting device is in an abnormal state; disregard the learned steering wheel angle neutral point if the detecting device is in the abnormal state; control the apparatus such that the tire steer angle is returned to a tire steer angle neutral point if the detecting device is in the abnormal state; initialize the detecting device after the tire steer angle is returned to the tire steer angle neutral point; and restart the learning of the steering wheel angle after the detecting device is initialized.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: July 14, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mitsutaka Tanimoto, Takahiro Kojo, Yoshiaki Tsuchiya, Yoshitaka Fujita
  • Publication number: 20150192228
    Abstract: A paint includes an amorphous inorganic material, crystalline inorganic material particles, and pore-forming material particles. The amorphous inorganic material contains silica. The crystalline inorganic material particles contain zirconia. The crystalline inorganic material particles have an average particle size of about 0.1 ?m to about 150 ?m. A weight of the crystalline inorganic material particles is about 30 parts by weight to about 180 parts by weight to 100 parts by weight of the amorphous inorganic material. The pore-forming material particles have an average particle size of about 0.1 ?m to about 25 ?m. A weight of the pore-forming material particles is about 0.001 parts by weight to about 1 parts by weight to 100 parts by weight of the amorphous inorganic material.
    Type: Application
    Filed: February 16, 2015
    Publication date: July 9, 2015
    Applicant: IBIDEN CO., LTD.
    Inventors: Fumiyuki MUTSUDA, Yoshitaka FUJITA
  • Publication number: 20150104616
    Abstract: A structure includes a surface coat layer of which the thickness on a bump such as a weld bead and a weld spatter or an edge portion, possibly formed on the surface of a base, is not greatly different from the thickness on a flat portion. The structure therefore has excellent properties including heat insulation properties and electrical insulation properties. The structure includes a base that is made of a metal, and has a flat portion and at least one of a bump and an edge portion on a surface; and a surface coat layer that covers the surface of the base, the surface coat layer including: a first surface coat layer that covers the flat portion, and contains an amorphous inorganic material, or a crystalline inorganic material and an amorphous inorganic material in combination.
    Type: Application
    Filed: October 10, 2014
    Publication date: April 16, 2015
    Applicant: IBIDEN CO., LTD.
    Inventors: Fumiyuki MUTSUDA, Yoshitaka FUJITA