Patents by Inventor Yuji Tsusaka

Yuji Tsusaka 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: 8151912
    Abstract: A wheeled inverted pendulum mobile unit having: a driving wheel; a body that is tiltable about an axle of the driving wheel with respect to a vertical direction; a plurality of support members that extend downward from the body in the vertical direction, wherein the bottom ends of the plurality of support members are in contact with a ground before and behind the axle of the driving wheel, and the bottom ends moves up and down, with respect to the body, as the body tilts with respect to the vertical direction; and a lock mechanism that locks positions of the bottom ends of the support members with respect to the body.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: April 10, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mitsuo Koide, Kazutoshi Sukigara, Yuji Tsusaka, Takashi Izuo, Masaaki Yamaoka, Koji Yamada
  • Patent number: 7615956
    Abstract: A robot, wherein the operating amounts of the first and second actuators are adjusted according to a torque necessary for maintaining a body member and an end member at specified angles in a mechanism in which the body member (361) and the end member (363) are rotatably connected to each other and first and second wires (366) connected to the end member are advanced and retreated by the first and second actuator (368).
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: November 10, 2009
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yuji Tsusaka
  • Publication number: 20090223728
    Abstract: A wheeled inverted pendulum mobile unit having: a driving wheel; a body that is tiltable about an axle of the driving wheel with respect to a vertical direction; a plurality of support members that extend downward from the body in the vertical direction, wherein the bottom ends of the plurality of support members are in contact with a ground before and behind the axle of the driving wheel, and the bottom ends moves up and down, with respect to the body, as the body tilts with respect to the vertical direction; and a lock mechanism that locks positions of the bottom ends of the support members with respect to the body.
    Type: Application
    Filed: March 5, 2009
    Publication date: September 10, 2009
    Inventors: Mitsuo KOIDE, Kazutoshi Sukigara, Yuji Tsusaka, Takashi Izuo, Masaaki Yamaoka, Koji Yamada
  • Publication number: 20090001919
    Abstract: A robot, wherein the operating amounts of the first and second actuators are adjusted according to a torque necessary for maintaining a body member and an end member at specified angles in a mechanism in which the body member (361) and the end member (363) are rotatably connected to each other and first and second wires (366) connected to the end member are advanced and retreated by the first and second actuator (368).
    Type: Application
    Filed: July 22, 2005
    Publication date: January 1, 2009
    Inventor: Yuji Tsusaka
  • Patent number: 7378812
    Abstract: A legged robot and a legged robot walking control method are disclosed, which enable stable walking without force sensors on leg tips. A legged robot of the present invention comprises a torso, a leg link, which is swingably connected to the torso, storing means 210 for storing leg tip gait data describing a time-series change in a target leg tip motion, storing means 210 for storing torso gait data describing a time-series change in a target torso motion, which realizes a target ZMP following the change in the target leg tip motion, torso motion detection means 218, 220 for detecting an actual torso motion, deviation calculation means 312 for calculating a deviation of the actual torso motion from the target torso motion, correction quantity calculation means 308 for determining a correction quantity from the calculated deviation based on a prescribed transfer function, and correction means 306 for correcting the target torso gait data based on the determined correction quantity.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: May 27, 2008
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Yamamoto, Hisayoshi Sugihara, Keisuke Suga, Yuji Tsusaka, Ryosuke Tajima
  • Publication number: 20070241713
    Abstract: A legged robot and a legged robot walking control method are disclosed, which enable stable walking without force sensors on leg tips. A legged robot of the present invention comprises a torso, a leg link, which is swingably connected to the torso, storing means 210 for storing leg tip gait data describing a time-series change in a target leg tip motion, storing means 210 for storing torso gait data describing a time-series change in a target torso motion, which realizes a target ZMP following the change in the target leg tip motion, torso motion detection means 218, 220 for detecting an actual torso motion, deviation calculation means 312 for calculating a deviation of the actual torso motion from the target torso motion, correction quantity calculation means 308 for determining a correction quantity from the calculated deviation based on a prescribed transfer function, and correction means 306 for correcting the target torso gait data based on the determined correction quantity.
    Type: Application
    Filed: January 26, 2005
    Publication date: October 18, 2007
    Inventors: Takashi Yamamoto, Hisayoshi Sugihara, Keisuke Suga, Yuji Tsusaka, Ryosuke Tajima
  • Patent number: 7076440
    Abstract: A notice board business system database stores therein collectively the contents of all the data heads relating to a series of business processes, and is held in common in the form of a notice board through clients by all the related persons in charge of the tasks. A status change rule sets the data head in which the data input should be completed with respect to each of the task processes. A status watcher refers to both the notice board business system database and the status change rule to make the task process change from the current task process to the next task process when the predetermined data input has been completed in the process in task so as to inform the related client of that the status change has occurred. In addition, the status watcher refers to a status change limit rule for setting the data input completion due date for each of the task processes so as to inform, when the processing due date is drawing near, the related client of that the processing due date is drawing near.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: July 11, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Masato Tamaki, Yuji Tsusaka, Naofumi Hosoda, Eiji Takamatsu, Makoto Ogawa, Akiko Nagayama
  • Patent number: 6275809
    Abstract: A notice board business system database stores therein collectively the contents of all the data heads relating to a series of business processes, and is held in common in the form of a notice board through clients by all the related persons in charge of the tasks. A status change rule sets the data head in which the data input should be completed with respect to each of the task processes. A status watcher refers to both the notice board business system database and the status change rule to make the task process change from the current task process to the next task process when the predetermined data input has been completed in the process in task so as to inform the related client of that the status change has occurred. In addition, the status watcher refers to a status change limit rule for setting the data input completion due date for each of the task processes so as to inform, when the processing due date is drawing near, the related client of that the processing due date is drawing near.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: August 14, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Masato Tamaki, Yuji Tsusaka, Naofumi Hosoda, Eiji Takamatsu, Makoto Ogawa, Akiko Nagayama
  • Publication number: 20010008998
    Abstract: A notice board business system database stores therein collectively the contents of all the data heads relating to a series of business processes, and is held in common in the form of a notice board through clients by all the related persons in charge of the tasks. A status change rule sets the data head in which the data input should be completed with respect to each of the task processes. A status watcher refers to both the notice board business system database and the status change rule to make the task process change from the current task process to the next task process when the predetermined data input has been completed in the process in task so as to inform the related client of that the status change has occurred. In addition, the status watcher refers to a status change limit rule for setting the data input completion due date for each of the task processes so as to inform, when the processing due date is drawing near, the related client of that the processing due date is drawing near.
    Type: Application
    Filed: March 6, 2001
    Publication date: July 19, 2001
    Inventors: Masato Tamaki, Yuji Tsusaka, Naofumi Hosoda, Eiji Takamatsu, Makoto Ogawa, Akiko Nagayama