Patents by Inventor Masayuki Okuwa

Masayuki Okuwa 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: 10048699
    Abstract: A vehicle control apparatus includes: a storage apparatus configured to store a steering modification point of a vehicle and a vehicle speed target point of the vehicle that are associated with map information; and an electronic control unit configured to: detect a position of the vehicle; detect a travel direction of the vehicle; calculate a lane travel distance, the position of the vehicle, and the travel direction of the vehicle; generate, lane travel map data, a target direction of the vehicle, and a target vehicle speed of the vehicle, on the basis of the map information, the steering modification point, the vehicle speed target point, the position of the vehicle, and the travel direction of the vehicle; and output a control signal to control the vehicle on the basis of the position of the vehicle, the lane travel distance of the vehicle, and the lane travel map data.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: August 14, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, THE UNIVERSITY OF TOKYO, National University Corporation Tokyo University of Agriculture and Technology
    Inventors: Hideo Inoue, Masahiro Mio, Masayuki Okuwa, Tsukasa Shimizu, Minoru Kamata, Takuma Ito, Pongsathorn Raksincharoensak, Masao Nagai
  • Publication number: 20160334796
    Abstract: A vehicle control apparatus includes: a storage apparatus configured to store a steering modification point of a vehicle and a vehicle speed target point of the vehicle that are associated with map information; and an electronic control unit configured to: detect a position of the vehicle; detect a travel direction of the vehicle; calculate a lane travel distance, the position of the vehicle, and the travel direction of the vehicle; generate, lane travel map data, a target direction of the vehicle, and a target vehicle speed of the vehicle, on the basis of the map information, the steering modification point, the vehicle speed target point, the position of the vehicle, and the travel direction of the vehicle; and output a control signal to control the vehicle on the basis of the position of the vehicle, the lane travel distance of the vehicle, and the lane travel map data.
    Type: Application
    Filed: May 13, 2016
    Publication date: November 17, 2016
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, The University of Tokyo, National University Corporation Tokyo University of Agriculture and Technology
    Inventors: Hideo INOUE, Masahiro MIO, Masayuki OKUWA, Tsukasa SHIMIZU, Minoru KAMATA, Takuma ITO, Pongsathorn RAKSINCHAROENSAK, Masao NAGAI
  • Publication number: 20150336587
    Abstract: A driving assist device 1 includes: an information acquisition unit 20 that detects a driving operation of a driver for the vehicle; a driving skill evaluation unit 24 that evaluates a driving skill of the driver on the basis of a history of the driving operation of the driver; and a driving assist control unit 28 that performs the driving assist control for the vehicle on the basis of the traveling state of the vehicle and the target traveling state. When the information acquisition unit 20 detects the driving operation of the driver during the driving assist control, the driving assist control unit 28 limits the amount of driving assist control for the vehicle according to the driving skill of the driver evaluated and reflects the driving operation amount of the driver in traveling control for the vehicle.
    Type: Application
    Filed: May 18, 2015
    Publication date: November 26, 2015
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, THE UNIVERSITY OF TOKYO, National University Corporation Tokyo University of Agriculture and Technology
    Inventors: Hideo INOUE, Shintaro INOUE, Masahiro MIO, Shingo SAKAIDA, Tsukasa SHIMIZU, Masayuki OKUWA, Minoru KAMATA, Takuma ITO, Pongsathorn RAKSINCHAROENSAK, Masao NAGAI
  • Patent number: 5635642
    Abstract: A vibration-sensing device (10) with high sensitivity includes a torsion bar (16) fixed on both ends thereof to a frame, a tuning fork-shaped vibrating member (12) joined with and supported by the torsion bar (16), and first and second torsion vibrating bodies (14,15) symmetrically projected from the torsion bar (16). The torsion bar (16), the tuning fork-shaped vibrating member (12), and the torsion vibrating bodies (14,15) constitute a torsion vibrating system. The application of an angular velocity to the vibration-sensing device (10) under the condition of plane vibrations of first and second vibrating tines (12a, 12b) of the first tuning fork-shaped vibrating member (12) along an X axis generates Coriolis forces to drive torsion vibration of the first tuning fork-shaped vibrating member (12) round the torsion bar (16), thereby driving torsion vibration corresponding to the angular velocity in the torsion vibrating system.
    Type: Grant
    Filed: August 24, 1995
    Date of Patent: June 3, 1997
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Yutaka Nonomura, Takeshi Morikawa, Masayuki Okuwa, Kouji Tsukada
  • Patent number: 5585562
    Abstract: A vibration-sensing gyro composed of a light alloy such as duralumin includes a base and a first pair of tines projecting parallel to each other from the base. Piezoelectric elements are mounted on the root of the side faces of the first pair of tines to excite the first pair of tines along an X axis. The vibrations of the first pair of tines along the X axis are then propagated to a second pair of tines to vibrate the second pair of tines along the X axis. Piezoelectric elements are mounted on the root of the upper and the lower faces of the second pair of tines to detect vibrations of the second pair of tines along an Y axis. When the second pair of tines receives the Coriolis force based on an angular velocity .omega. around a Z axis and vibrates along the Y axis, the vibrations along the Y axis are detected as electric signals (alternating current voltages) by piezoelectric effects of the piezoelectric elements.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: December 17, 1996
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Nobuo Kurata, Nobuyoshi Sugitani, Takashi Ozaki, Kenji Harada, Kimitoshi Tsuji, Yutaka Nonomura, Takeshi Morikawa, Masayuki Okuwa, Kouji Tsukada
  • Patent number: 5533397
    Abstract: The invention provides a vibration-sensing gyro, where resonance frequencies of tines are adjusted adequately in a simple manner. A vibration-sensing gyro (10) of the invention is made of a light alloy plate like duralumin and includes a first tine (14) and a second tine (16) disposed parallel to each other and projecting from a base (12). When the first tine (14) has a length l1, a width w1 along the X axis, and a thickness t1 and the second tine (16) has a length l2, a width w2 along the X axis, and a thickness t2 (=t1), the first tine (14) and the second tine (16) hold the relationship of l2/.sqroot.t2=l1/.sqroot.w1. In other words, the tines (14,16) and the base (12) are manufactured to satisfy this relationship. Such definition of the dimensions makes a resonance frequency fx1 of the first tine along the X axis coincide with a resonance frequency fy 2 of the second tine 16 along the Y axis.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: July 9, 1996
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Nobuyoshi Sugitani, Masayuki Okuwa, Takeshi Morikawa, Yutaka Nonomura