Patents by Inventor Yoshitaka Umemoto
Yoshitaka Umemoto 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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Publication number: 20140194682Abstract: An insertion device includes an idle state detector detecting an idle state in which an insertion section does not move in directions along the longitudinal axis when a rotation unit rotates in directions around the longitudinal axis, and a movement displacement calculator calculating a rotation direction and amount of the rotation unit based on a driving direction and amount of the driving member and calculating a movement displacement of the insertion section from a reference position in directions parallel to the longitudinal axis based on the rotation direction and amount of the rotation unit. the movement displacement calculator calculates the movement displacement of the insertion section so that a movement amount of the insertion section in the longitudinal directions while the idle state being detected is zero.Type: ApplicationFiled: January 14, 2014Publication date: July 10, 2014Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yoshitaka UMEMOTO, Kimihiko NAITO, Hiroaki MIYOSHI
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Publication number: 20140074290Abstract: A manipulator device includes a state detection section detecting, with time, at least one of a vibration state of a distal arm and a load state of the distal arm, and generating a detection signal indicating at least one of the vibration state and the load state of the distal arm. The manipulator device includes a servo gain changing section changing a servo gain of a drive current with respect to a drive instruction in a servo control section in accordance with the detection signal generated by the state detection section, the servo gain changing section changing the servo gain so as to change frequency characteristics associated with vibrations of the distal arm in real time.Type: ApplicationFiled: September 5, 2013Publication date: March 13, 2014Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Toshimasa KAWAI, Yoshitaka UMEMOTO
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Publication number: 20140039254Abstract: A medical system includes: an endoscope including an insertion portion that can be inserted into a body cavity of a subject, and an image pickup section provided at a distal end portion of the insertion portion; an exclusion section capable of, when the insertion portion is inserted into the body cavity of the subject, excluding a tissue existing around the distal end portion; a computing section that obtains luminance information relating to a luminance of an image picked up by the image pickup section, and determines whether or not the obtained luminance information meets a predetermined condition; a drive section that if a determination result that the luminance information does not meet the predetermined condition is provided, continues an operation to drive the exclusion section, and if a determination result that the luminance information meets the predetermined condition is provided, stops the operation to drive the exclusion section.Type: ApplicationFiled: July 19, 2013Publication date: February 6, 2014Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yoshitaka UMEMOTO, Yasuhiro OKAMOTO
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Publication number: 20140024890Abstract: An endoscope system includes at least an endoscope of the endoscope and an accessory, a placement unit on which the endoscope is adapted to be placed, a detecting unit configured to detect whether the endoscope is placed on the placement unit or not, an actuating unit for at least one of the endoscope and the accessory, an operating unit for operating the actuating unit, and a control unit configured to be switched between a normal mode wherein the actuating unit is controlled according to an operation to the operating unit and a restricting mode wherein the actuating unit is controlled regardless of an operation to the operating unit, on the basis of a result of detection by the detecting unit.Type: ApplicationFiled: September 23, 2013Publication date: January 23, 2014Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yoshitaka UMEMOTO, Kazuhiko TAKAHASHI
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Patent number: 8602968Abstract: When an operation instruction is input by a first (second) control output instruction input device, locus calculation means calculates a locus of movement of a first (second) therapeutic device on the basis of any one of joint sections, which is instructed to operate. On the basis of a calculation result by the locus calculation means, therapeutic device operation control means controls an operation of the first (second) therapeutic device by a first (second) active mechanism. Thereby, there is provided an endoscope apparatus which can improve the operational efficiency and positional precision of the therapeutic device.Type: GrantFiled: September 15, 2009Date of Patent: December 10, 2013Assignee: Olympus Medical Systems Corp.Inventors: Yoshitaka Umemoto, Kazuhiko Takahashi, Tetsuo Nonami
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Patent number: 8568295Abstract: An endoscope system includes at least an endoscope of the endoscope and an accessory, a placement unit on which the endoscope is adapted to be placed, a detecting unit configured to detect whether the endoscope is placed on the placement unit or not, an actuating unit for at least one of the endoscope and the accessory, an operating unit for operating the actuating unit, and a control unit configured to be switched between a normal mode wherein the actuating unit is controlled according to an operation to the operating unit and a restricting mode wherein the actuating unit is controlled regardless of an operation to the operating unit, on the basis of a result of detection by the detecting unit.Type: GrantFiled: August 14, 2009Date of Patent: October 29, 2013Assignee: Olympus Medical Systems Corp.Inventors: Yoshitaka Umemoto, Kazuhiko Takahashi
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Patent number: 8497898Abstract: An endoscope system includes an image pickup section, provided in an endoscope, which performs image pickup, a determining section that determines whether a specific observation object exists inside an image pickup region of the image pickup section, a recognizing section that determines whether the specific observation object can be recognized as an image from the picked-up image in the image pickup region picked up by the image pickup section, a low visibility determination output section that determines, when the determining section determines that the specific observation object exists inside the image pickup region and the recognizing section cannot recognize the specific observation object as an image, that the image pickup section is in a low visibility condition and outputs a low visibility determination result, and an obstacle estimation section that estimates an obstacle or a type of obstacle which causes the low visibility according to the low visibility determination result.Type: GrantFiled: January 25, 2012Date of Patent: July 30, 2013Assignee: Olympus Medical Systems Corp.Inventors: Hiroki Moriyama, Yoshitaka Umemoto
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Patent number: 8403833Abstract: A medical apparatus includes a bending portion that is bent via a pulled wire, a drive section that pulls the wire, a detection section and a drive force amount detection section that detect an amount of drive of the drive section and an amount of drive force, a storage section that stores information on a correlation of the amount of drive force and the amount of drive of the drive section beforehand, a bending amount detection section that detects the amount of bending of the bending portion based on the amount of drive and the amount of drive force, and the information of the storage section, a judgment section that judges the presence or absence of looseness of the wire from a detection result of the drive force amount detection section and a correction section that corrects the amount of drive by the drive section based on a judgment result of the judgment section.Type: GrantFiled: April 18, 2011Date of Patent: March 26, 2013Assignee: Olympus Medical Systems Corp.Inventor: Yoshitaka Umemoto
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Patent number: 8388605Abstract: A medical device system includes a manipulator including a plurality of joints, a parameter storing portion for storing joint parameters, including a largest available force, of each joint of the plurality of joints, a trajectory inputting portion for inputting, as a trajectory plan, trajectories for moving a distal end of the manipulator from a current position and attitude to a target position and attitude, a trajectory setting portion for setting a joint angle trajectory for each joint providing a largest available force from among joint angle trajectories which allow movement to the target position and attitude with a minimum number of driven joints based on a largest available force parameter for the each joint stored in the parameter storing portion and the trajectory plan.Type: GrantFiled: October 29, 2008Date of Patent: March 5, 2013Assignee: Olympus Medical Systems Corp.Inventors: Yoshitaka Umemoto, Kazuhiko Takahashi, Tetsuo Nonami
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Publication number: 20120182409Abstract: An endoscope system includes an image pickup section, provided in an endoscope, which performs image pickup, a determining section that determines whether a specific observation object exists inside an image pickup region of the image pickup section, a recognizing section that determines whether the specific observation object can be recognized as an image from the picked-up image in the image pickup region picked up by the image pickup section, a low visibility determination output section that determines, when the determining section determines that the specific observation object exists inside the image pickup region and the recognizing section cannot recognize the specific observation object as an image, that the image pickup section is in a low visibility condition and outputs a low visibility determination result, and an obstacle estimation section that estimates an obstacle or a type of obstacle which causes the low visibility according to the low visibility determination result.Type: ApplicationFiled: January 25, 2012Publication date: July 19, 2012Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Hiroki MORIYAMA, Yoshitaka UMEMOTO
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Publication number: 20110295063Abstract: A medical system includes a movable portion configured to allow an angle to be changed within a predetermined angular range, an actuator configured to drive the movable portion so as to change the angle of the movable portion when a wire is pulled, a control unit configured to perform drive control of the actuator, a slack detection unit configured to detect a driving condition as to whether or not the wire is slack, a slack adjustment unit configured to adjust slack of the wire based on a detection result produced by the slack detection unit; and a slack adjustment command input unit used to input a command to adjust the slack of the wire, wherein the slack adjustment unit adjusts the slack of the wire to a predetermined state of adjustment in response to the command to adjust the slack of the wire.Type: ApplicationFiled: June 7, 2011Publication date: December 1, 2011Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yoshitaka UMEMOTO, Kazuhiko TAKAHASHI
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Publication number: 20110282154Abstract: A medical apparatus includes a bending portion that is bent via a pulled wire, a drive section that pulls the wire, a detection section and a drive force amount detection section that detect an amount of drive of the drive section and an amount of drive force, a storage section that stores information on a correlation of the amount of drive force and the amount of drive of the drive section beforehand, a bending amount detection section that detects the amount of bending of the bending portion based on the amount of drive and the amount of drive force, and the information of the storage section, a judgment section that judges the presence or absence of looseness of the wire from a detection result of the drive force amount detection section and a correction section that corrects the amount of drive by the drive section based on a judgment result of the judgment section.Type: ApplicationFiled: April 18, 2011Publication date: November 17, 2011Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventor: Yoshitaka UMEMOTO
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Patent number: 8019473Abstract: A manipulator includes: a drive section which electrically drives a joint; an instruction input section which executes instruction input; a control section which generates a driving signal in response to the instruction input; a sensor which detects an operation status of the joint or the drive section in time series; a setting section which sets an allowable operation range of the drive section; a determination section which determines whether an operation status signal including a detection signal is within the allowable operation range; and a replacement section which, in a case when the operation status signal is determined as deviating from the allowable operation range, replaces the detection signal with a previous detection signal acquired just before the determination of deviance in order to generate a driving signal.Type: GrantFiled: April 14, 2009Date of Patent: September 13, 2011Assignee: Olympus Medical Systems Corp.Inventors: Yoshitaka Umemoto, Kazuhiko Takahashi
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Publication number: 20100106157Abstract: An active mechanism control apparatus includes a state detecting section which detects an output state of energy supplied to an energy treatment instrument by a status signal from an energy output apparatus. The state detecting section controls an energy output device, an active endoscope control section and an active treatment instrument control section based on the output state of the energy to the energy treatment instrument.Type: ApplicationFiled: January 6, 2010Publication date: April 29, 2010Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yoshitaka UMEMOTO, Kazuhiko TAKAHASHI
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Publication number: 20100004505Abstract: When an operation instruction is input by a first (second) control output instruction input device, locus calculation means calculates a locus of movement of a first (second) therapeutic device on the basis of any one of joint sections, which is instructed to operate. On the basis of a calculation result by the locus calculation means, therapeutic device operation control means controls an operation of the first (second) therapeutic device by a first (second) active mechanism. Thereby, there is provided an endoscope apparatus which can improve the operational efficiency and positional precision of the therapeutic device.Type: ApplicationFiled: September 15, 2009Publication date: January 7, 2010Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yoshitaka UMEMOTO, Kazuhiko TAKAHASHI, Tetsuo NONAMI
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Publication number: 20090306469Abstract: An endoscope system includes at least an endoscope of the endoscope and an accessory, a placement unit on which the endoscope is adapted to be placed, a detecting unit configured to detect whether the endoscope is placed on the placement unit or not, an actuating unit for at least one of the endoscope and the accessory, an operating unit for operating the actuating unit, and a control unit configured to be switched between a normal mode wherein the actuating unit is controlled according to an operation to the operating unit and a restricting mode wherein the actuating unit is controlled regardless of an operation to the operating unit, on the basis of a result of detection by the detecting unit.Type: ApplicationFiled: August 14, 2009Publication date: December 10, 2009Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yoshitaka Umemoto, Kazuhiko Takahashi
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Publication number: 20090259340Abstract: A manipulator includes: a drive section which electrically drives a joint; an instruction input section which executes instruction input; a control section which generates a driving signal in response to the instruction input; a sensor which detects an operation status of the joint or the drive section in time series; a setting section which sets an allowable operation range of the drive section; a determination section which determines whether an operation status signal including a detection signal is within the allowable operation range; and a replacement section which, in a case when the operation status signal is determined as deviating from the allowable operation range, replaces the detection signal with a previous detection signal acquired just before the determination of deviance in order to generate a driving signal.Type: ApplicationFiled: April 14, 2009Publication date: October 15, 2009Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yoshitaka UMEMOTO, Kazuhiko TAKAHASHI
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Publication number: 20090112316Abstract: A medical device system includes a manipulator including a plurality of joints, a parameter storing portion for storing joint parameters, including a largest available force, of each joint of the plurality of joints, a trajectory inputting portion for inputting, as a trajectory plan, trajectories for moving a distal end of the manipulator from a current position and attitude to a target position and attitude, a trajectory setting portion for setting a joint angle trajectory for each joint providing a largest available force from among joint angle trajectories which allow movement to the target position and attitude with a minimum number of driven joints based on a largest available force parameter for the each joint stored in the parameter storing portion and the trajectory plan.Type: ApplicationFiled: October 29, 2008Publication date: April 30, 2009Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yoshitaka UMEMOTO, Kazuhiko TAKAHASHI, Tetsuo NONAMI
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Publication number: 20090104418Abstract: An isotropic fiber-reinforced thermoplastic resin sheet wherein a chopped strand prepreg comprising a thermoplastic resin and a reinforcing fiber is layered so that the fiber orientation is random, the prepreg having a fiber volume fraction (Vf) of 20% to 50%, a length in the fiber axis direction of 15 to 45 mm, and a thickness of no greater than 0.13 mm, and the layered material is molded into sheet form by heating and pressing, and a molded plate obtained from the isotropic fiber-reinforced thermoplastic resin sheet. Even if the volume fraction of the reinforcing fiber is relatively low, a fiber-reinforced thermoplastic resin sheet and a molded plate that are excellent in terms of mechanical properties and their uniformity can be obtained.Type: ApplicationFiled: August 14, 2006Publication date: April 23, 2009Applicant: TEIJIN TECHNO PRODUCTS LIMITEDInventors: Takeru Ohki, Takeshi Naito, Yoshitaka Umemoto
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Publication number: 20060249877Abstract: The present invention discloses a method of resin transfer molding which comprises superposing a bagging film on a layer of reinforcing fibers laid on a mold, airtightly bonding the periphery of the bagging film to the mold, evacuating the space between the bagging film and the mold, injecting a resin into the space between the bagging film and the mold to thereby impregnate the resin into the reinforcing fibers, and curing the resin, characterized in that resin injection passages and resin discharge passages are alternately formed outside the reinforcing fiber layer along a surface of the reinforcing fiber layer and the resin is injected into the resin injection passages to allow the resin injected to move to the resin discharge passages via the reinforcing fiber layer and thereby impregnate the resin into the reinforcing fiber layer.Type: ApplicationFiled: February 26, 2004Publication date: November 9, 2006Applicant: Toho Tenax Co., LtdInventors: Toru Kaneko, Yoshitaka Umemoto, Kiyoto Sasaki