Patents by Inventor Ryosuke Tajima

Ryosuke Tajima 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: 11922649
    Abstract: It provides the measurement data of each portion of the target object with a high accuracy. The measurement data calculation apparatus 1020 includes an obtaining unit 1024A, an extraction unit 1024B, a conversion unit 1024C, and a calculation unit 1024D. The obtaining unit 1024A obtains the image data in which the target object is photographed and the full length data of the target object. The extraction unit 1024B extracts the shape data indicating the shape of the target object from the image data. The conversion unit 1024C converts and silhouettes the shape data based on the full length data. The calculation unit 1024D uses the shape data converted by the conversion unit 1024C to calculate the measurement data of each portion of the target object.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: March 5, 2024
    Assignee: Arithmer Inc.
    Inventors: Daisuke Sato, Hiroki Yato, Chikashi Arita, Yoshihisa Ishibashi, Takashi Nakano, Ryosuke Sasaki, Ryosuke Tajima, Yoshihiro Ohta
  • Publication number: 20230398702
    Abstract: To provide an object-serving device that is capable of serving a predetermined amount of object with reduced damage to the object. An embodiment of the present invention provides an object-serving device, comprising: object-holding members configured to move at least between an object-holding position and an object release position; a base body to which the object-holding members are attached such that the object-holding members can be moved; and a drive mechanism for driving the object-holding members, wherein each of the object-holding members has a shape following its path of movement at the object-holding position.
    Type: Application
    Filed: October 29, 2021
    Publication date: December 14, 2023
    Inventor: Ryosuke TAJIMA
  • Publication number: 20210312649
    Abstract: It provides the measurement data of each portion of the target object with a high accuracy. The measurement data calculation apparatus 1020 includes an obtaining unit 1024A, an extraction unit 1024B, a conversion unit 1024C, and a calculation unit 1024D. The obtaining unit 1024A obtains the image data in which the target object is photographed and the full length data of the target object. The extraction unit 1024B extracts the shape data indicating the shape of the target object from the image data. The conversion unit 1024C converts and silhouettes the shape data based on the full length data. The calculation unit 1024D uses the shape data converted by the conversion unit 1024C to calculate the measurement data of each portion of the target object.
    Type: Application
    Filed: May 27, 2021
    Publication date: October 7, 2021
    Inventors: Daisuke SATO, Hiroki YATO, Chikashi ARITA, Yoshihisa ISHIBASHI, Takashi NAKANO, Ryosuke SASAKI, Ryosuke TAJIMA, Yoshihiro OHTA
  • Patent number: 8386076
    Abstract: There is provided a legged robot that performs motion by changing a joint angle, which includes a trajectory generating section to calculate a center-of-gravity trajectory in designated stepping motion from the stepping motion including at least one of walking motion, running motion and stopping motion, and generate a center-of-gravity trajectory by superimposing a designated travel velocity onto a travel velocity of a center of gravity in the calculated center-of-gravity trajectory in stepping motion, and a trajectory updating section to store the generated center-of-gravity trajectory and update all the stored center-of-gravity trajectories so as to be continuous, and a trajectory reproducing section to calculate time-varying data of a target value of the joint angle based on the updated center-of-gravity trajectory, and a joint driving section to rotate a joint of the legged robot based on the calculated time-varying data of a target value of the joint angle.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: February 26, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Daisaku Honda, Keisuke Suga, Ryosuke Tajima
  • Patent number: 8340817
    Abstract: There is provided a legged robot that performs motion by changing a joint angle, which includes a section of generating a center-of-gravity trajectory of the legged robot based on a trinomial equation obtained by discretizing a ZMP equation and a target ZMP, a section of calculating time-varying data of a target value of the joint angle based on the generated center-of-gravity trajectory, and a section of rotating a joint of the legged robot based on the calculated time-varying data of a target value of the joint angle, wherein the ZMP equation involves an angular momentum according to a center-of-gravity velocity.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: December 25, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Daisaku Honda, Keisuke Suga, Ryosuke Tajima
  • Patent number: 8150550
    Abstract: A legged robot that runs while repeating a jump cycle including a ground-contact phase from a landing to a takeoff and an aerial phase from a takeoff to a landing is provided. The legged robot adjusts the landing timing after a jump in accordance with a planned timing, thereby attaining a smooth landing. A measuring unit of the legged robot measures an actual aerial phase period in a k-th jump cycle. A subtractor calculates a time difference between a target aerial phase period and the actual aerial phase period in the k-th jump cycle. A target velocity determining unit calculates a target vertical velocity of a center of gravity on a takeoff timing in a (k+1)-th jump cycle so as to eliminate the time difference. Motors in respective joints are controlled so as to realize the calculated target vertical velocity in the (k+1)-th jump cycle.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: April 3, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Keisuke Suga, Daisaku Honda, Toru Miyagawa, Ryosuke Tajima
  • Patent number: 8108070
    Abstract: The present invention provides a technique that makes a robot continue a stabilized walk, even when an actual movement state of the robot deviates greatly from a target movement state of the robot. The robot includes a trunk, a pair of leg links coupled with the trunk in a swingable manner, an actuator group that swings each of the leg links independently to the trunk, and a controller that controls the actuator group. The controller is programmed to control the actuator group and realize a given trajectory of the center of gravity and the trajectory of the toe of the leg link.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: January 31, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ryosuke Tajima
  • Patent number: 7957835
    Abstract: Technology is provided that can compute a center of gravity pathway for a robot in which the ZMP matches the target ZMP, even if the robot is caused to perform a crouching movement during a single leg ground phase.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: June 7, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Keisuke Suga, Ryosuke Tajima
  • Publication number: 20100017028
    Abstract: A legged robot that runs while repeating a jump cycle including a ground-contact phase from a landing to a takeoff and an aerial phase from a takeoff to a landing is provided. The legged robot adjusts the landing timing after a jump in accordance with a planned timing, thereby attaining a smooth landing. A measuring unit of the legged robot measures an actual aerial phase period in a k-th jump cycle. A subtractor calculates a time difference between a target aerial phase period and the actual aerial phase period in the k-th jump cycle. A target velocity determining unit calculates a target vertical velocity of a center of gravity on a takeoff timing in a (k+1)-th jump cycle so as to eliminate the time difference. Motors in respective joints are controlled so as to realize the calculated target vertical velocity in the (k+1)-th jump cycle.
    Type: Application
    Filed: September 6, 2007
    Publication date: January 21, 2010
    Inventors: Keisuke Suga, Daisaku Honda, Toru Miyagawa, Ryosuke Tajima
  • Publication number: 20090187275
    Abstract: Technology is provided that can compute a center of gravity pathway for a robot in which the ZMP matches the target ZMP, even if the robot is caused to perform a crouching movement during a single leg ground phase.
    Type: Application
    Filed: February 3, 2006
    Publication date: July 23, 2009
    Inventors: Keisuke Suga, Ryosuke Tajima
  • Publication number: 20090069941
    Abstract: There is provided a legged robot that performs motion by changing a joint angle, which includes a trajectory generating section to calculate a center-of-gravity trajectory in designated stepping motion from the stepping motion including at least one of walking motion, running motion and stopping motion, and generate a center-of-gravity trajectory by superimposing a designated travel velocity onto a travel velocity of a center of gravity in the calculated center-of-gravity trajectory in stepping motion, and a trajectory updating section to store the generated center-of-gravity trajectory and update all the stored center-of-gravity trajectories so as to be continuous, and a trajectory reproducing section to calculate time-varying data of a target value of the joint angle based on the updated center-of-gravity trajectory, and a joint driving section to rotate a joint of the legged robot based on the calculated time-varying data of a target value of the joint angle.
    Type: Application
    Filed: September 12, 2008
    Publication date: March 12, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisaku Honda, Keisuke Suga, Ryosuke Tajima
  • Publication number: 20090069940
    Abstract: There is provided a legged robot that performs motion by changing a joint angle, which includes a section of generating a center-of-gravity trajectory of the legged robot based on a trinomial equation obtained by discretizing a ZMP equation and a target ZMP, a section of calculating time-varying data of a target value of the joint angle based on the generated center-of-gravity trajectory, and a section of rotating a joint of the legged robot based on the calculated time-varying data of a target value of the joint angle, wherein the ZMP equation involves an angular momentum according to a center-of-gravity velocity.
    Type: Application
    Filed: September 12, 2008
    Publication date: March 12, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisaku Honda, Keisuke Suga, Ryosuke Tajima
  • Publication number: 20090005906
    Abstract: The present invention provides a technique that makes a robot continue a stabilized walk, even when an actual movement state of the robot deviates greatly from a target movement state of the robot. The robot includes a trunk, a pair of leg links coupled with the trunk in a swingable manner, an actuator group that swings each of the leg links independently to the trunk, and a controller that controls the actuator group. The controller is programmed to control the actuator group and realize a given trajectory of the center of gravity and the trajectory of the toe of the leg link.
    Type: Application
    Filed: July 17, 2007
    Publication date: January 1, 2009
    Inventor: Ryosuke Tajima
  • 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