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).

  • Publication number: 20220342483
    Abstract: 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: Application
    Filed: July 7, 2022
    Publication date: October 27, 2022
    Applicant: THE UNIVERSITY OF ELECTRO-COMMUNICATIONS
    Inventors: Hiroshi YOKOI, Yuankang SHI, Shota TOGO, Yinlai JIANG, Yusuke YAMANOI
  • Patent number: 10258794
    Abstract: 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: Grant
    Filed: July 23, 2014
    Date of Patent: April 16, 2019
    Assignees: SYSTEM INSTRUMENTS CO., LTD., THE UNIVERSITY OF ELECTRO-COMMUNICATIONS
    Inventors: Takeshi Akiba, Hiroshi Yokoi
  • Patent number: 10124092
    Abstract: 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: Grant
    Filed: January 17, 2014
    Date of Patent: November 13, 2018
    Assignee: SENKO MEDICAL INSTRUMENT MFG. CO., LTD.
    Inventors: Hiroshi Yokoi, Norihisa Ichikawa, Souichi Katsuta, Masahiro Kihara
  • Publication number: 20170100586
    Abstract: 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: Application
    Filed: July 23, 2014
    Publication date: April 13, 2017
    Applicants: SYSTEM INSTRUMENTS CO., LTD., The University of Electro-Communications
    Inventors: Takeshi AKIBA, Hiroshi YOKOI
  • Publication number: 20150343120
    Abstract: 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: Application
    Filed: January 17, 2014
    Publication date: December 3, 2015
    Applicant: SENKO MEDICAL INSTRUMENT MFG. CO., LTD.
    Inventors: Hiroshi YOKOI, Norihisa ICHIKAWA, Souichi KATSUTA, Masahiro KIHARA
  • Patent number: 9192768
    Abstract: 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: Grant
    Filed: October 14, 2011
    Date of Patent: November 24, 2015
    Assignees: The University of Electro-Communications, The University of Tokyo, National University Corporation University of Fukui
    Inventors: Hiroshi Yokoi, Ryu Kato, Tatsuhiro Nakamura, Soichiro Morishita, Osamu Yamamura
  • Patent number: 8992384
    Abstract: 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: Grant
    Filed: June 6, 2011
    Date of Patent: March 31, 2015
    Assignee: System Instruments Co., Ltd
    Inventors: Kazuyuki Hamada, Takeshi Akiba, Hiroshi Yokoi
  • Publication number: 20130218238
    Abstract: 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: Application
    Filed: October 14, 2011
    Publication date: August 22, 2013
    Applicant: The University of Electro-Communications
    Inventors: Hiroshi Yokoi, Ryu Kato, Tatsuhiro Nakamura, Soichiro Morishita, Osamu Yamamura
  • Publication number: 20130137549
    Abstract: 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: Application
    Filed: June 6, 2011
    Publication date: May 30, 2013
    Applicant: SYSTEM INSTRUMENTS CO., LTD.
    Inventors: Kazuyuki Hamada, Takeshi Akiba, Hiroshi Yokoi
  • Patent number: 8396546
    Abstract: 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: Grant
    Filed: May 3, 2010
    Date of Patent: March 12, 2013
    Assignees: Osaka University, Advanced Telecommunications Research Institute International, The University of Tokyo
    Inventors: Masayuki Hirata, Takufumi Yanagisawa, Yukiyasu Kamitani, Hiroshi Yokoi, Toshiki Yoshimine, Tetsu Goto, Ryohei Fukuma, Ryu Kato
  • Publication number: 20110218453
    Abstract: 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: Application
    Filed: May 3, 2010
    Publication date: September 8, 2011
    Applicants: Osaka University, Advanced Telecommunications Research Institute International, The University of Tokyo
    Inventors: Masayuki Hirata, Takufumi Yanagisawa, Yukiyasu Kamitani, Hiroshi Yokoi, Toshiki Yoshimine, Tetsu Goto, Ryohei Fukuma, Ryu Kato
  • Publication number: 20100148500
    Abstract: 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: Application
    Filed: September 6, 2007
    Publication date: June 17, 2010
    Inventors: Hirokazu Uehara, Syouichi Tukakosi, Hiroshi Yokoi
  • Publication number: 20080066574
    Abstract: 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: Application
    Filed: September 19, 2007
    Publication date: March 20, 2008
    Applicant: NIDEC CORPORATION
    Inventors: Itsuo MURATA, Hiroshi YOKOI, Makoto YAMASHITA
  • Publication number: 20060138692
    Abstract: 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 r
    Type: Application
    Filed: January 23, 2004
    Publication date: June 29, 2006
    Inventors: 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
  • Publication number: 20040150146
    Abstract: 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: Application
    Filed: December 31, 2003
    Publication date: August 5, 2004
    Applicants: 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
  • Publication number: 20040121619
    Abstract: 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: Application
    Filed: September 3, 2003
    Publication date: June 24, 2004
    Applicant: HOKKAIDO UNIVERSITY
    Inventors: Hiroshi Yokoi, Takahiro Kawashima, Eiji Makino, Takayuki Shibata, Yukinori Kakazu
  • Patent number: 6712344
    Abstract: 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: Grant
    Filed: April 22, 2002
    Date of Patent: March 30, 2004
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventors: Shigeki Takeo, Takashi Maeno, Masanao Gotou, Hiroshi Yokoi, Takeshi Naito, Tomoyuki Sawatari, Hisayoshi Kato, Osamu Nakagaki
  • Patent number: 6625586
    Abstract: 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: Grant
    Filed: September 7, 2000
    Date of Patent: September 23, 2003
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Shintaro Ishida, Hiroshi Yokoi, Mitsuru Kurotaki
  • Patent number: 6527260
    Abstract: 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: Grant
    Filed: December 6, 2000
    Date of Patent: March 4, 2003
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventors: Shigeki Takeo, Takashi Maeno, Masanao Gotou, Hiroshi Yokoi, Takeshi Naito, Tomoyuki Sawatari, Hisayoshi Kato, Osamu Nakagaki
  • Publication number: 20030015831
    Abstract: 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: Application
    Filed: April 22, 2002
    Publication date: January 23, 2003
    Applicant: TOYODA GOSEI CO. LTD.
    Inventors: Shigeki Takeo, Takashi Maeno, Masanao Gotou, Hiroshi Yokoi, Takeshi Naito, Tomoyuki Sawatari, Hisayoshi Kato, Osamu Nakagaki