Patents by Inventor Jinichi Yamaguchi
Jinichi Yamaguchi 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).
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Patent number: 12214703Abstract: A conveyance seat capable of suppressing wrinkles or saggings from occurring on a surface of a seat main body is provided. A conveyance seat includes a seat back and a movable body which is attached inside the seat back, is disposed at an outer position in relation to a center portion of the seat back, and is operated so that a side portion of the seat back protrudes toward a seated occupant side (seat front side). The movable body is disposed on a back surface of a cushion material in the side portion. An end portion (rear end portion) on the side opposite to the seated occupant side of the movable body is disposed on the seated occupant side (seat front side) in relation to a seating surface of the center portion of the seat back.Type: GrantFiled: July 30, 2021Date of Patent: February 4, 2025Assignee: TS TECH CO., LTD.Inventors: Takanori Yamaguchi, Masahito Tashiro, Katsuya Kawata, Kazuya Miyawaki, Heehyeok Park, Kenta Kikuchi, Naoto Yamauchi, Naoya Matsumoto, Hiroyuki Kaku, Hiroshi Baba, Jinichi Tanabe
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Patent number: 9348327Abstract: To provide a work machine with high stability in which a dynamic balance can be evaluated easily while the influence of a sudden stop of an travel base, an upperstructure and a work front is taken into consideration. A stabilization control calculation unit (60a) and a command value generating unit (60i) are provided in a control device (60) of the work machine. The stabilization control calculation unit (60a) uses a sudden stop model and position information of each movable portion of the travel base and a machine body including the work front (6) to predict a change of stability until reaching a complete stop when a control lever (50) in an operating state is instantaneously brought back to a stop command position, and calculates a motion limit needed to prevent destabilization from occurring at any time instant until reaching the stop.Type: GrantFiled: June 6, 2012Date of Patent: May 24, 2016Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.Inventors: Mariko Mizuochi, Akinori Ishii, Jinichi Yamaguchi
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Patent number: 8768580Abstract: Disclosed is a working machine that computes and displays moment by moment its dynamic stability and its state of contact with a ground in view of an inertia force and an external force applied to the working machine. Specifically, a working machine is provided with an undercarriage, a working machine main body mounted on the undercarriage, a front working mechanism attached pivotally in an up-and-down direction to the working machine main body, and a working attachment connected to a free end of the front working mechanism.Type: GrantFiled: October 19, 2010Date of Patent: July 1, 2014Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Mariko Mizuochi, Akinori Ishii, Jinichi Yamaguchi
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Patent number: 8768581Abstract: Disclosed is a safety system for a working machine, which allows an operator to instantaneously, readily and precisely recognize current stability during work including operations of a front working mechanism and swing operations.Type: GrantFiled: May 24, 2011Date of Patent: July 1, 2014Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Mariko Mizuochi, Akinori Ishii, Jinichi Yamaguchi
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Publication number: 20140121840Abstract: To provide a work machine with high stability in which a dynamic balance can be evaluated easily while the influence of a sudden stop of an travel base, an upperstructure and a work front is taken into consideration. A stabilization control calculation unit (60a) and a command value generating unit (60i) are provided in a control device (60) of the work machine. The stabilization control calculation unit (60a) uses a sudden stop model and position information of each movable portion of the travel base and a machine body including the work front (6) to predict a change of stability until reaching a complete stop when a control lever (50) in an operating state is instantaneously brought back to a stop command position, and calculates a motion limit needed to prevent destabilization from occurring at any time instant until reaching the stop.Type: ApplicationFiled: June 6, 2012Publication date: May 1, 2014Inventors: Mariko Mizuochi, Akinori Ishii, Jinichi Yamaguchi
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Patent number: 8612052Abstract: The lumbar part of a robot as a controlled-object point where the mass is moved to the largest extent is set as the origin of a local coordinate, an acceleration sensor is disposed at the controlled-object point to directly measure the attitude and acceleration at that position to control the robot to take a stable posture on the basis of a ZMP. Further, at each foot which touches the walking surface, there are provided a floor reaction force sensor and acceleration sensor to directly measure a ZMP and force, and a ZMP equation is formulated directly at the foot nearest to a ZMP position. Thus there can be implemented a stricter and quick control of the robot for a stable posture.Type: GrantFiled: September 16, 2010Date of Patent: December 17, 2013Assignees: Sony CorporationInventors: Kenichiro Nagasaka, Jinichi Yamaguchi, Satoru Shimizu, Yoshihiro Kuroki
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Publication number: 20130066527Abstract: Disclosed is a safety system for a working machine, which allows an operator to instantaneously, readily and precisely recognize current stability during work including operations of a front working mechanism and swing operations.Type: ApplicationFiled: May 24, 2011Publication date: March 14, 2013Inventors: Mariko Mizuochi, Akinori Ishii, Jinichi Yamaguchi
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Publication number: 20120232763Abstract: Disclosed is a working machine that computes and displays moment by moment its dynamic stability and its state of contact with a ground in view of an inertia force and an external force applied to the working machine. Specifically, a working machine is provided with an undercarriage, a working machine main body mounted on the undercarriage, a front working mechanism attached pivotally in an up-and-down direction to the working machine main body, and a working attachment connected to a free end of the front working mechanism.Type: ApplicationFiled: October 19, 2010Publication date: September 13, 2012Inventors: Mariko Mizuochi, Akinori Ishii, Jinichi Yamaguchi
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Publication number: 20110077775Abstract: The lumbar part of a robot as a controlled-object point where the mass is moved to the largest extent is set as the origin of a local coordinate, an acceleration sensor is disposed at the controlled-object point to directly measure the attitude and acceleration at that position to control the robot to take a stable posture on the basis of a ZMP. Further, at each foot which touches the walking surface, there are provided a floor reaction force sensor and acceleration sensor to directly measure a ZMP and force, and a ZMP equation is formulated directly at the foot nearest to a ZMP position. Thus there can be implemented a stricter and quick control of the robot for a stable posture.Type: ApplicationFiled: September 16, 2010Publication date: March 31, 2011Inventors: Kenichiro Nagasaka, Jinichi Yamaguchi, Satoru Shimizu, Yoshihiro Kuroki
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Patent number: 7881824Abstract: The lumbar part of a robot as a controlled-object point where the mass amount becomes maximum is set as the origin of a local coordinate, an acceleration sensor is disposed at the controlled-object point to directly measure the attitude and acceleration at that position to control the robot to take a stable posture on the basis of a ZMP. Further, at each foot which touches the walking surface, there are provided a floor reaction force sensor and acceleration sensor to directly measure a ZMP and force, and a ZMP equation is formulated directly at the foot nearest to a ZMP position. Thus there can be implemented a stricter and quick control of the robot for a stable posture.Type: GrantFiled: March 18, 2003Date of Patent: February 1, 2011Assignees: Sony CorporationInventors: Kenichiro Nagasaka, Jinichi Yamaguchi, Satoru Shimizu, Yoshihiro Kuroki
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Patent number: 7664569Abstract: A ZMP equilibrium equation stating the relationship of various moments applied to a robot body of a robot, based on desirable motion data made up by trajectories of respective parts, imaginarily divided from the robot body, is generated, and moment errors in a ZMP equilibrium equation are calculated. A priority sequence of the parts, the target trajectories of which are corrected to cancel out the moment errors, is set. The target trajectories are corrected from one part to another, in a sequence corresponding to the priority sequence, to compensate the moment errors.Type: GrantFiled: October 10, 2003Date of Patent: February 16, 2010Assignees: Sony CorporationInventors: Satoru Shimizu, Jinichi Yamaguchi, Yoshihiro Kuroki
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Patent number: 7386364Abstract: A legged mobile robot gives up a normal walking motion and starts a tumbling motion when an excessively high external force or external moment is applied thereto and a behavior plan of a foot part thereof is disabled. At this time, the variation amount ?S/?t of the area S of a support polygon of the body per time t is minimized and the support polygon when the body drops onto a floor is maximized to distribute an impact which acts upon the body from the floor when the body drops onto the floor to the whole body to suppress the damage to the body to the minimum. Further, the legged mobile robot autonomously restores a standing up posture from an on-floor posture thereof such as a supine posture or a prone posture.Type: GrantFiled: March 17, 2003Date of Patent: June 10, 2008Assignees: Sony Corporation, Yamaguchi, JinichiInventors: Tatsuo Mikami, Jinichi Yamaguchi, Atsushi Miyamoto
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Patent number: 7366587Abstract: The characteristics of actuators themselves and the characteristics of controllers for the actuators are dynamically or statically controlled to achieve stable and highly efficient movements. In a stage in which a leg in the flight state is uplifted such that the reactive force from the floor received by the foot sole of the leg is zero, the characteristics of the respective actuators for the knee joint pitch axis and the ankle pitch and roll axes of the leg in the flight state are set for decreasing the low range gain, increasing the quantity of phase lead and for decreasing the viscous resistance of the actuators, in order to impart mechanical passiveness and fast response characteristics. The followup control for the high frequency range may be achieved as the force of impact at the instant of touchdown is buffered.Type: GrantFiled: December 4, 2003Date of Patent: April 29, 2008Assignees: Sony CorporationInventors: Masatsugu Iribe, Jinichi Yamaguchi
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Patent number: 7278501Abstract: In a robot having at least one rotating joint (which may have at least two degrees of freedom), in order to perform a high-speed switching operation between a closed link mode and an open link mode with the outside world or a working object, each limb is provided with minimum-required, passive degrees-of-freedom (such as a backlash of a reducer) for removing a dynamic closing error and also the movable range of the limb is properly controlled. Even when an actuator for driving the corresponding joint has no means for obtaining a torque signal, a high-speed switching operation between the closed link mode and the open link mode can be stably achieved.Type: GrantFiled: August 1, 2002Date of Patent: October 9, 2007Assignees: Sony CorporationInventors: Naoto Mori, Jinichi Yamaguchi
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Patent number: 7236852Abstract: A legged mobile robot itself is responsive to the result of error detection during robot operations to perform error avoiding processing autonomously. In detecting an error, requested commands are all blocked by the internal processing within the robot so that an input to an actuating system does not affect the robot. The type of the error that has occurred is also notified to the actuating system so that feedback to an inputting system 32 may be applied in a manner specific to the error type. When the error is eliminated, that effect is notified to the actuating system to enable re-initiation of the usual command input from the remote operating system.Type: GrantFiled: October 10, 2003Date of Patent: June 26, 2007Assignees: Sony CorporationInventors: Tomohisa Moridaira, Jinichi Yamaguchi
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Patent number: 7113849Abstract: The stability of attitude of a robot can be recovered by an ambulation control apparatus and an ambulation control method according to the invention if it is lost in the course of a gesture for which the upper limbs take a major role. The apparatus and the method obtain the pattern of movement of the entire body for walking by deriving the pattern of movement of the loins from an arbitrarily selected pattern of movement of the feet, the trajectory of the ZMP, the pattern of movement of the trunk and that of the upper limbs. Therefore, according to the invention, a robot can determine the gait of the lower limbs so as to realize a stable walk regardless if the robot is standing upright or walking. Particularly, if the robot is made to gesture, using the upper body half including the upper limbs and the trunk while standing upright, it can determine the gait of the lower limbs so as to make a stable walk in response to such a gait of the upper body half.Type: GrantFiled: May 11, 2005Date of Patent: September 26, 2006Assignees: Sony Corporation, Jinichi YamaguchiInventors: Yoshihiro Kuroki, Tatsuzo Ishida, Jinichi Yamaguchi
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Patent number: 7099747Abstract: To implement a dynamic, elegant motion performance of an actual robot, a motion editing system is provided which includes a motion editor to edit motions of an upper body and whole body of the robot and a foot trajectory editor to create a gait pattern and lower-body motion to stabilize the entire robot. The foot trajectory editor includes the same gait pattern generator and motion stabilized as those installed in the actual robot. Before performing the edited motions on the actual robot, the motions are created, corrected and stabilized on a 3D viewer.Type: GrantFiled: October 22, 2004Date of Patent: August 29, 2006Assignees: Sony CorporationInventors: Tatsuo Mikami, Atsushi Miyamoto, Jinichi Yamaguchi
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Patent number: 7076337Abstract: The stability of attitude of a robot can be recovered by an ambulation control apparatus and an ambulation control method if it is lost in the course of a gesture for which the upper limbs take a major role. The apparatus and the method obtain the pattern of movement of the entire body for walking by deriving the pattern of movement of the loins from an arbitrarily selected pattern of movement of the feet, the trajectory of the ZMP, the pattern of movement of the trunk and that of the upper limbs. Therefore, a robot can determine the gait of the lower limbs so as to realize a stable walk regardless if the robot is standing upright or walking. Particularly, if the robot is made to gesture, using the upper body half including the upper limbs and the trunk while standing upright, it can determine the gait of the lower limbs so as to make a stable walk in response to such a gait of the upper body half.Type: GrantFiled: August 8, 2003Date of Patent: July 11, 2006Assignees: Sony Corporation, Jinichi YamaguchiInventors: Yoshihiro Kuroki, Tatsuzo Ishida, Jinichi Yamaguchi
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Patent number: 7076338Abstract: A predetermined action sequence is generated by using basic motion units which include time-sequential motion of each joint and compound motion units in which basic motion units are combined. Motion natterns of a robot including walking are classified into motion units, each motion unit servins as a unit of motion, and one or more motion units are combined to generate various complex motions. Dynamic motion units are defined on the basis of basic dynamic attitudes, and a desired action sequence can be generated by using the dynamic motion units. This is a basic control method necessary for a robot to autonomously perform a continuous motion, a series of continuous motions, or motions which are chanaed in real-time by commands.Type: GrantFiled: August 16, 2004Date of Patent: July 11, 2006Assignees: Sony CorporationInventors: Yoshihiro Kuroki, Tatsuzo Ishida, Jinichi Yamaguchi
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Patent number: 7072740Abstract: In a mobile robot, the actuator characteristics are dynamically or statically controlled, during motions of an entire robot body in the course of falldown or descent, to realize stable highly efficient motions. In each stage of the falldown motions, the characteristics of each joint site taking part in controlling the stable area are set so that the low range gain is low, the quantity of phase lead is large and the viscous resistance of the motor is large, in such a manner that these joint sites may be positioned to high accuracy in a controller manner to increase orientation stability. This assures the positioning accuracy of the joints as main component for controlling the quantity ?S/?t as a reference in controlling the falldown motions of the robot body to increase the motion stability.Type: GrantFiled: December 11, 2003Date of Patent: July 4, 2006Assignees: Sony CorporationInventors: Masatsugu Iribe, Jinichi Yamaguchi