Patents by Inventor Hiroshi Yokoi
Hiroshi Yokoi 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: 20220342483Abstract: A conversion device includes: a unit attribute update unit that specifies a unit associated with a representative value approximating a feature vector for a biological signal, and updates a representative value and energy of the specified unit; a unit update unit that, when a plurality of feature vectors outside a predetermined range of a representative value of a unit of the unit data are acquired within a predetermined time, adds data for a new unit identifier to unit data; a class update unit that, when there is no class including a unit having energy within a predetermined range of energy of the new unit, adds data for a new class identifier to class data; and a motion update unit that updates motion data by associating, with an identifier of a class acquired after updating the class data, an identifier of a motion corresponding to the class.Type: ApplicationFiled: July 7, 2022Publication date: October 27, 2022Applicant: THE UNIVERSITY OF ELECTRO-COMMUNICATIONSInventors: Hiroshi YOKOI, Yuankang SHI, Shota TOGO, Yinlai JIANG, Yusuke YAMANOI
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Patent number: 10258794Abstract: Provided is an electrical stimulation device including a first to fourth electrodes, and an electrical stimulation generation section which supplies an electrical stimulation signal to each of the first to fourth electrodes. The electrical stimulation generation section supplies, to the first and second electrodes, an electrical stimulation signal according to a first stimulation pattern, and supplies, to the third and fourth electrodes, an electrical stimulation signal according to a second stimulation pattern. The first stimulation pattern is set so that an electrical stimulation signal for changing stimulation intensity according to a first waveform is supplied to the first electrode, and an electrical stimulation signal for changing stimulation intensity according to a second waveform is supplied to the second electrode, the second waveform being increased and decreased in conjunction with the first waveform.Type: GrantFiled: July 23, 2014Date of Patent: April 16, 2019Assignees: SYSTEM INSTRUMENTS CO., LTD., THE UNIVERSITY OF ELECTRO-COMMUNICATIONSInventors: Takeshi Akiba, Hiroshi Yokoi
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Patent number: 10124092Abstract: An air leak detection device is applied to a thoracic cavity drainage system which, by using negative pressure generated by a vacuum source, aspirates gas in the thoracic cavity of a patient via a water seal chamber in which liquid is received. The pressure between the vacuum source and the water seal chamber is measured by a pressure sensor, and the occurrence of air bubbles created in the water seal chamber is detected on the basis of fluctuations of this pressure.Type: GrantFiled: January 17, 2014Date of Patent: November 13, 2018Assignee: SENKO MEDICAL INSTRUMENT MFG. CO., LTD.Inventors: Hiroshi Yokoi, Norihisa Ichikawa, Souichi Katsuta, Masahiro Kihara
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Publication number: 20170100586Abstract: Provided is an electrical stimulation device including a first to fourth electrodes, and an electrical stimulation generation section which supplies an electrical stimulation signal to each of the first to fourth electrodes. The electrical stimulation generation section supplies, to the first and second electrodes, an electrical stimulation signal according to a first stimulation pattern, and supplies, to the third and fourth electrodes, an electrical stimulation signal according to a second stimulation pattern. The first stimulation pattern is set so that an electrical stimulation signal for changing stimulation intensity according to a first waveform is supplied to the first electrode, and an electrical stimulation signal for changing stimulation intensity according to a second waveform is supplied to the second electrode, the second waveform being increased and decreased in conjunction with the first waveform.Type: ApplicationFiled: July 23, 2014Publication date: April 13, 2017Applicants: SYSTEM INSTRUMENTS CO., LTD., The University of Electro-CommunicationsInventors: Takeshi AKIBA, Hiroshi YOKOI
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Publication number: 20150343120Abstract: An air leak detection device is applied to a thoracic cavity drainage system which, by using negative pressure generated by a vacuum source, aspirates gas in the thoracic cavity of a patient via a water seal chamber in which liquid is received. The pressure between the vacuum source and the water seal chamber is measured by a pressure sensor, and the occurrence of air bubbles created in the water seal chamber is detected on the basis of fluctuations of this pressure.Type: ApplicationFiled: January 17, 2014Publication date: December 3, 2015Applicant: SENKO MEDICAL INSTRUMENT MFG. CO., LTD.Inventors: Hiroshi YOKOI, Norihisa ICHIKAWA, Souichi KATSUTA, Masahiro KIHARA
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Patent number: 9192768Abstract: Implementation including a brain activity data acquisition unit configured to acquire data on brain activity of a human body; a generator configured to generate a stimulation signal based on predetermined stimulation parameters or stimulation parameters determined from the data acquired by the brain activity data acquisition unit, the stimulation signal being to be applied, for activity of a specific brain region to be activated in order to move a joint of the human body, to a nerve corresponding to the specific brain region; and an output unit configured to output the stimulation signal generated by the generator.Type: GrantFiled: October 14, 2011Date of Patent: November 24, 2015Assignees: The University of Electro-Communications, The University of Tokyo, National University Corporation University of FukuiInventors: Hiroshi Yokoi, Ryu Kato, Tatsuhiro Nakamura, Soichiro Morishita, Osamu Yamamura
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Patent number: 8992384Abstract: A training apparatus includes a training machine, a detecting unit, a signal generating unit, and a control unit. The training machine includes a displaceable part that is movable in response to exercise motions performed by the exerciser during training exercise. The detecting unit detects the displacement of the displaceable part or detects the displacement of the target training area of the exerciser resulting from the exercise motions. The signal generating unit generates a stimulus signal to be applied to the exerciser during the training exercise. The control unit corrects a content of processing relating to stimulus signal performed by the signal generating unit based on the displacement detected by the detecting unit.Type: GrantFiled: June 6, 2011Date of Patent: March 31, 2015Assignee: System Instruments Co., LtdInventors: Kazuyuki Hamada, Takeshi Akiba, Hiroshi Yokoi
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Publication number: 20130218238Abstract: Implementation including a brain activity data acquisition unit (103) configured to acquire data on brain activity of a human body; a generator (101) configured to generate a stimulation signal based on predetermined stimulation parameters or stimulation parameters determined from the data acquired by the brain activity data acquisition unit, the stimulation signal being to be applied, for activity of a specific brain region to be activated in order to move a joint of the human body, to a nerve corresponding to the specific brain region; and an output unit (102) configured to output the stimulation signal generated by the generator.Type: ApplicationFiled: October 14, 2011Publication date: August 22, 2013Applicant: The University of Electro-CommunicationsInventors: Hiroshi Yokoi, Ryu Kato, Tatsuhiro Nakamura, Soichiro Morishita, Osamu Yamamura
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Publication number: 20130137549Abstract: A training apparatus includes a training machine, a detecting unit, a signal generating unit, and a control unit. The training machine includes a displaceable part that is movable in response to exercise motions performed by the exerciser during training exercise. The detecting unit detects the displacement of the displaceable part or detects the displacement of the target training area of the exerciser resulting from the exercise motions. The signal generating unit generates a stimulus signal to be applied to the exerciser during the training exercise. The control unit corrects a content of processing relating to stimulus signal performed by the signal generating unit based on the displacement detected by the detecting unit.Type: ApplicationFiled: June 6, 2011Publication date: May 30, 2013Applicant: SYSTEM INSTRUMENTS CO., LTD.Inventors: Kazuyuki Hamada, Takeshi Akiba, Hiroshi Yokoi
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Patent number: 8396546Abstract: A machine control device includes: first decoders for estimating, from brain signal information, which one of body movements a user performs or images, based on learning using pairs of movements performed by the user and brain signal information, the body movements going toward one of first to nth body postures; second decoders for estimating from the brain signal information, an correct rate on the body movement estimation, based on learning using pairs of correct rates of the estimation of body movements and the brain signal information; and electric prosthetic arm control section for controlling an electric prosthetic arm to change stepwise its posture between first to nth postures via at least one intermediate posture therebetween, the first to nth postures corresponding to the first to nth body postures. The first decoders perform the estimation only when the estimated correct rate exceeds a threshold.Type: GrantFiled: May 3, 2010Date of Patent: March 12, 2013Assignees: Osaka University, Advanced Telecommunications Research Institute International, The University of TokyoInventors: Masayuki Hirata, Takufumi Yanagisawa, Yukiyasu Kamitani, Hiroshi Yokoi, Toshiki Yoshimine, Tetsu Goto, Ryohei Fukuma, Ryu Kato
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Publication number: 20110218453Abstract: A machine control device includes: first decoders for estimating, from brain signal information, which one of body movements a user performs or images, based on learning using pairs of movements performed by the user and brain signal information, the body movements going toward one of first to nth body postures; second decoders for estimating from the brain signal information, an correct rate on the body movement estimation, based on learning using pairs of correct rates of the estimation of body movements and the brain signal information; and electric prosthetic arm control section for controlling an electric prosthetic arm to change stepwise its posture between first to nth postures via at least one intermediate posture therebetween, the first to nth postures corresponding to the first to nth body postures. The first decoders perform the estimation only when the estimated correct rate exceeds a threshold.Type: ApplicationFiled: May 3, 2010Publication date: September 8, 2011Applicants: Osaka University, Advanced Telecommunications Research Institute International, The University of TokyoInventors: Masayuki Hirata, Takufumi Yanagisawa, Yukiyasu Kamitani, Hiroshi Yokoi, Toshiki Yoshimine, Tetsu Goto, Ryohei Fukuma, Ryu Kato
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Publication number: 20100148500Abstract: A connector for connecting the end of a chemical tube, a blood tube or a tracheal tube inserted to a human body with that of an external circuit. The connector comprises a male terminal part (2) and a conically-connectable female terminal part (3) composed of an inner cylindrical body (5) and an outer cylindrical body (6) which can rotate relative to each other. On the outer surface of the inner cylindrical body (5) and the inner surface of the outer cylindrical body (6), projected lines (11) and grooves (12) which function as engaging means which can stop the rotation inside the connector by contacting with one another due to elastic deformation of the outer cylindrical body are formed. Accordingly, the conically-connectable rotary connector can be detached easily while a rotation mechanism is provided inside the connector.Type: ApplicationFiled: September 6, 2007Publication date: June 17, 2010Inventors: Hirokazu Uehara, Syouichi Tukakosi, Hiroshi Yokoi
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Publication number: 20080066574Abstract: A twisted string actuator as a light-weight and space saving actuator includes a small motor and a twisted string having a structure in which two strings are twisted with each other loosely. A first end of the twisted string is connected to a finger joint, and a second end of the same is connected to a rotation shaft of the motor via a power transmission mechanism. When the rotation shaft of the motor rotates, a twisted state of the two strings of the twisted string is tightened or loosened, so that a length of the twisted string is decreased or increased. As a result, the finger joint is driven to rotate about the axis.Type: ApplicationFiled: September 19, 2007Publication date: March 20, 2008Applicant: NIDEC CORPORATIONInventors: Itsuo MURATA, Hiroshi YOKOI, Makoto YAMASHITA
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Publication number: 20060138692Abstract: The present invention comprises a process for combining foamed polystyrene fine particles (C) to two-component reaction curing type soft urethane liquid resin (A), injecting a resulting mixture into a mold for core (C) with a concave portion corresponding to said hollow portion, hardening it, removing a resulting cured matter from said mold for core (C), and forming a vanishing core (D) having a shape corresponding to said hollow portion; a process for setting said vanishing core (D) at a specific position inside a mold for resin model (E) having a concave portion corresponding to an outer shape of said resin model, injecting two-component reaction fast curing type urethane liquid resin (F), hardening it, removing a resulting cured matter, and forming a resin model (G) including said vanishing core (D); and a process for injecting organic solvent capable of dissolving foamed polystyrene (H) into said vanishing core (D of said resin model (G) to dissolve said foamed polystyrene fine particles (B), removing a rType: ApplicationFiled: January 23, 2004Publication date: June 29, 2006Inventors: Hidekazu Suzuki, Nobuyuki Tanaka, Noriyuki Miki, Hiroshi Yokoi, Keiichiro Onso, Reiji Matsuyama, Tomonobu Kasuga, Hisashi Mizuno, Manabu Maeda, Akira Takase, Takaharu Oi, Tomoni Suzuki, Minoru Matsumura, Yoshiyuki Aihara, Masashi Takemura, Taro Kita, Akio Saito, Kazuki Kamata, Masato Kikuchihara
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Publication number: 20040150146Abstract: The liquid-sealing type vibration isolating apparatus of the present invention includes a coupler attached to a vibrating body, a holder, an insulator for absorbing and isolating vibration from the vibrating body at a position between the coupler and the holder, and a vibration isolating mechanism directly following the insulator and including liquid chambers sealing an incompressible fluid. This vibration isolating mechanism has a main chamber sealing a liquid, having a part of wall thereof formed by the insulator, an auxiliary chamber communicating with the main chamber via an orifice, and an equilibrium chamber provided in a portion of the main chamber via a diaphragm and having a varying volume in the chamber. The vibration isolating apparatus further includes switching means for introducing a negative pressure and the atmospheric pressure continuously or in synchronization with vibration of the vibrating body, and control means for controlling this switching operation.Type: ApplicationFiled: December 31, 2003Publication date: August 5, 2004Applicants: TOYODA GOSEI CO., LTD., TOYO TIRE & RUBBER CO., LTD.Inventors: Shigeki Takeo, Takashi Maeno, Masanao Gotou, Hiroshi Yokoi, Takeshi Naito, Tomoyuki Sawatari, Hisayoshi Kato, Osamu Nakagaki
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Publication number: 20040121619Abstract: On a given substrate are successively formed electrode patterns constituting electrode wirings for measuring points, respectively. Then, an insulating layer and an underlayer covering the electrode patterns are etched and removed to expose the substrate, which suffers from anisotropic etching using a given etching solution, to fabricate a multipoint minute electrode with a sharpened probe and a supporter for the probe.Type: ApplicationFiled: September 3, 2003Publication date: June 24, 2004Applicant: HOKKAIDO UNIVERSITYInventors: Hiroshi Yokoi, Takahiro Kawashima, Eiji Makino, Takayuki Shibata, Yukinori Kakazu
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Patent number: 6712344Abstract: The liquid-sealing type vibration isolating apparatus of the present invention includes a coupler attached to a vibrating body, a holder, an insulator for absorbing and isolating vibration from the vibrating body at a position between the coupler and the holder, and a vibration isolating mechanism directly following the insulator and including liquid chambers sealing an incompressible fluid. This vibration isolating mechanism has a main chamber sealing a liquid, having a part of wall thereof formed by the insulator, an auxiliary chamber communicating with the main chamber via an orifice, and an equilibrium chamber provided in a portion of the main chamber via a diaphragm and having a varying volume in the chamber. The vibration isolating apparatus further includes switching mechanism for introducing a negative pressure and the atmospheric pressure continuously or in synchronization with vibration of the vibrating body, and a control mechanism for controlling this switching operation.Type: GrantFiled: April 22, 2002Date of Patent: March 30, 2004Assignee: Toyo Tire & Rubber Co., Ltd.Inventors: Shigeki Takeo, Takashi Maeno, Masanao Gotou, Hiroshi Yokoi, Takeshi Naito, Tomoyuki Sawatari, Hisayoshi Kato, Osamu Nakagaki
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Patent number: 6625586Abstract: A state of a control object is detected, the detected state of the control object is made an initial value, and a simulation with a control rule, a control gain, and an instruction signal value, which control the control object, as parameters is sequentially carried out by using an internal model expressing its own control system and by a computation method to optimize a predetermined evaluation standard, so that the control rule, the control gain, and the instruction signal value to optimize the evaluation standard are obtained and the control object is controlled.Type: GrantFiled: September 7, 2000Date of Patent: September 23, 2003Assignee: Fuji Jukogyo Kabushiki KaishaInventors: Shintaro Ishida, Hiroshi Yokoi, Mitsuru Kurotaki
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Patent number: 6527260Abstract: The liquid-sealing type vibration isolating apparatus of the present invention includes a coupler configured to be attached to a vibrating body, a holder, an insulator for absorbing and isolating vibration from the vibrating body at a position between the coupler and the holder, and a vibration isolating mechanism directly following the insulator and including liquid chambers sealing an incompressible fluid. This vibration isolating mechanism has a main chamber sealing a liquid, having a part of a wall thereof formed by the insulator, an auxiliary chamber communicating with the main chamber via an orifice, and an equilibrium chamber provided in a portion of the main chamber via a diaphragm and having a varying volume in the chamber. The vibration isolating apparatus further includes a switching mechanism for introducing a negative pressure and the atmospheric pressure continuously or in synchronization with vibration of the vibrating body, and a control mechanism for controlling this switching operation.Type: GrantFiled: December 6, 2000Date of Patent: March 4, 2003Assignee: Toyo Tire & Rubber Co., Ltd.Inventors: Shigeki Takeo, Takashi Maeno, Masanao Gotou, Hiroshi Yokoi, Takeshi Naito, Tomoyuki Sawatari, Hisayoshi Kato, Osamu Nakagaki
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Publication number: 20030015831Abstract: The liquid-sealing type vibration isolating apparatus of the present invention includes a coupler attached to a vibrating body, a holder, an insulator for absorbing and isolating vibration from the vibrating body at a position between the coupler and the holder, and a vibration isolating mechanism directly following the insulator and including liquid chambers sealing an incompressible fluid. This vibration isolating mechanism has a main chamber sealing a liquid, having a part of wall thereof formed by the insulator, an auxiliary chamber communicating with the main chamber via an orifice, and an equilibrium chamber provided in a portion of the main chamber via a diaphragm and having a varying volume in the chamber. The vibration isolating apparatus further includes switching means for introducing a negative pressure and the atmospheric pressure continuously or in synchronization with vibration of the vibrating body, and control means for controlling this switching operation.Type: ApplicationFiled: April 22, 2002Publication date: January 23, 2003Applicant: TOYODA GOSEI CO. LTD.Inventors: Shigeki Takeo, Takashi Maeno, Masanao Gotou, Hiroshi Yokoi, Takeshi Naito, Tomoyuki Sawatari, Hisayoshi Kato, Osamu Nakagaki