Patents by Inventor Takeshi Yokoi

Takeshi 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: 20200182118
    Abstract: Provided is a plug-in hybrid vehicle which includes an exhaust treatment unit which communicates with an engine and discharges exhaust gas generated by combustion of liquid fuel, an oxidation catalyst and an SCR which are placed in a middle part of the exhaust treatment unit to remove impurities contained in the exhaust gas, and an external charging mechanism which is electrically connected with a battery and charges the battery with external electrical power, where the external charging mechanism includes a first heater unit and a second heater unit which heat the oxidation catalyst and the SCR with electrical power stored in the battery or external electrical power when the battery is charged with the external electrical power in a state where the fuel-based power unit and the electrical power unit are stopped.
    Type: Application
    Filed: April 17, 2018
    Publication date: June 11, 2020
    Inventor: Takeshi YOKOI
  • Patent number: 10364478
    Abstract: The present invention provides a bainite-containing-type high-strength hot-rolled steel sheet. The steel sheet, containing C: greater than 0.07 to 0.2%, Si: 0.001 to 2.5%, Mn: 0.01 to 4%, P: 0.15% or less, S: 0.03% or less, N: 0.01% or less, Al: 0.001 to 2% and a balance being composed of Fe and impurities, has an average value of pole densities of the {100}<011> to {223}<110> orientation group at a sheet thickness center portion being a range of ? to ? in sheet thickness from the surface of the steel sheet is 4.0 or less, and a pole density of the {332}<113> crystal orientation is 4.8 or less, an average crystal grain diameter is 10 ?m or less and vTrs is ?20° C. or lower, and a microstructure is composed of 35% or less in a structural fraction of pro-eutectoid ferrite and a balance of a low-temperature transformation generating phase.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: July 30, 2019
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Tatsuo Yokoi, Hiroshi Shuto, Riki Okamoto, Nobuhiro Fujita, Kazuaki Nakano, Takeshi Yamamoto
  • Patent number: 8790248
    Abstract: An indwelling apparatus (5) for holding a capsule endoscope (3) is arranged with a control device (57) including an optical sensor (73), a control board (66) configuring a controller and a reset circuit, a driver board (68) configuring an electromagnet driver, and an electromagnet (70), where when the optical sensor (73) detects the light, the controller performs the drive control of the electromagnet (70) at every constant time interval to turn ON the reed switch (14) and supply power to the capsule endoscope (3) thereby operating the capsule endoscope (3) only when observation is necessary, and thus the battery drain of the capsule endoscope is reduced.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: July 29, 2014
    Assignees: Olympus Medical Systems Corp., Olympus Corporation
    Inventors: Akio Uchiyama, Hironobu Takizawa, Shinsuke Tanaka, Katsumi Hirakawa, Takeshi Yokoi
  • Patent number: 8753265
    Abstract: An encapsulated endoscope system in accordance with the present invention comprises: an encapsulated endoscope that rotates to develop a thrust; a controller that moves the encapsulated endoscope in an intended direction of advancement; an imaging unit incorporated in the encapsulated endoscope; and an image processing unit that receives image data sent from the imaging unit, and produces an image, which results from rotation of the received image data, according to the rotational phase of the encapsulated endoscope.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: June 17, 2014
    Assignee: Olympus Corporation
    Inventors: Akio Uchiyama, Hironobu Takizawa, Takeshi Yokoi, Hitoshi Mizuno
  • Patent number: 8731637
    Abstract: Provided is an intra-subject medical system which includes a body-insertable device and a physical quantity generator. The body-insertable device is to be introduced into a subject, is covered by a capsule-shaped exterior member, and includes a physical quantity detecting member which has a directivity to detect a predetermined physical quantity; at least one functional member which has a necessary function for examining or treating inside the subject; and a switch control unit which controls an on/off state or operation mode of the at least one functional member when the physical quantity detecting member detects a physical quantity. The physical quantity generator has a physical quantity emitting unit which emits a temporary physical quantity inside the subject; and a physical quantity direction changing unit which changes an emission direction of the physical quantity.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: May 20, 2014
    Assignee: Olympus Medical Systems Corp.
    Inventors: Hironao Kawano, Hironobu Takizawa, Akio Uchiyama, Atsushi Chiba, Takeshi Yokoi, Hideo Ito, Hidetake Segawa
  • Publication number: 20130245398
    Abstract: A capsule-type medical device comprises a capsule main unit having functions for being inserted into the body cavity and performing medical acts such as taking images or the like. The capsule main unit comprises therein a magnet which is acted upon by external magnetism, and a spiral portion on the outer perimeter, so that rotating force acting upon the magnet is readily converted into a propelling force for propelling the capsule-type medical device. A flexible insertion portion which is long and small in diameter is provided to the capsule main unit to allow smooth progression through the body cavity, and the center of gravity of the device is placed upon the longitudinal center axis of the capsule main unit, thus facilitating smooth progression through the body cavity.
    Type: Application
    Filed: May 3, 2013
    Publication date: September 19, 2013
    Applicant: OLYMPUS CORPORATION,
    Inventors: Takeshi YOKOI, Hironobu TAKIZAWA, Akio UCHIYAMA, Hitoshi MIZUNO
  • Patent number: 8491464
    Abstract: To stably and properly monitor an inside of a body by using an easily operable placement technique, a capsule endoscope 101 to be swallowed from an oral cavity 200 to acquire in-vivo information of a subject 201 and to wirelessly output for a transmission of the in-vivo information to an outside of a body, a string member 103 that is connected to the capsule endoscope 101 for positioning the capsule endoscope 101 at a gastric cardia 202, and a fixing portion 104 that is a portion of the string member 103, is provided on a position with which a length from the capsule endoscope 101 corresponds to a length from the gastric cardia 202 to the inside of an esophageal region 203 for fixing the string member 103 that has located the capsule endoscope 101 at the gastric cardia 202 to the inside of the esophageal region 203 by an endoscopic fixture are included.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: July 23, 2013
    Assignees: Olympus Corporation, Olympus Medical Systems Corp.
    Inventors: Takeshi Yokoi, Katsumi Hirakawa, Akio Uchiyama, Shinsuke Tanaka, Hironobu Takizawa, Manabu Fujita
  • Patent number: 8454495
    Abstract: A capsule medical apparatus includes a capsule exterior member and a sensor that can detect the change of an atmospheric physical quantity caused outside the exterior member in the non-contact state, and performs, based on the temporary change in atmospheric physical quantity detected by the sensor, at least one of first control for switching operation from the ON-state of energy supply to the electric circuit from the battery to the OFF-state of the energy supply and of second control for switching operation from the OFF-state of the power supply to the ON-state of the power supply, and holds the state of energy supply switched by the control until another change of atmospheric physical quantity is detected.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: June 4, 2013
    Assignee: Olympus Corporation
    Inventors: Hironao Kawano, Hironobu Takizawa, Akio Uchiyama, Hidetake Segawa, Manabu Fujita, Akira Kikuchi, Takeshi Yokoi
  • Patent number: 8439851
    Abstract: A lumen passability checking device includes: an expandable and shrinkable outer casing that contains a predetermined fluid, is expanded by a pressure of the contained fluid, and forms an external diameter substantially equal to that of a capsule medical device to be inserted into a body of a subject; and a shape manipulating unit that flows out the fluid contained in the outer casing to shrink-deform the outer casing. The outer casing is shrink-deformed by flowing out the fluid, while maintaining a state of being integrated with the shape manipulating unit.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: May 14, 2013
    Assignee: Olympus Medical Systems Corp.
    Inventors: Atsushi Chiba, Takeshi Yokoi
  • Patent number: 8419629
    Abstract: An encapsulated endoscope system in accordance with the present invention comprises: an encapsulated endoscope that rotates to develop a thrust; a controller that moves the encapsulated endoscope in an intended direction of advancement; an imaging unit incorporated in the encapsulated endoscope; and an image processing unit that receives image data sent from the imaging unit, and produces an image, which results from rotation of the received image data, according to the rotational phase of the encapsulated endoscope.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: April 16, 2013
    Assignee: Olympus Corporation
    Inventors: Akio Uchiyama, Hironobu Takizawa, Takeshi Yokoi, Hitoshi Mizuno
  • Patent number: 8303490
    Abstract: A capsule type medical device, including: a capsule shaped casing which can be ingested to within the living body; an electrical stimulation device which comprises a plurality of electrodes which are used for applying electrical stimuli to living body tissue; an electrode selection device which selects an electrode from among the plurality of electrodes, to apply an electrical stimulus; a contact detection device which electrically detects the electrode which is in contact with the living body tissue; and a control section which controls the various devices.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: November 6, 2012
    Assignee: Olympus Corporation
    Inventors: Hironao Kawano, Hironobu Takizawa, Takeshi Yokoi, Masatoshi Homan, Akio Uchiyama
  • Patent number: 8269823
    Abstract: An object of the present invention is to continuously display a series of images of the inside of the subject until the intra-body indwelling capsule is placed at the desired site in the subject, and to easily place the intra-body indwelling capsule endoscope at the desired site. The intra-subject indwelling system 1 according to the present invention includes an endoscope device 14 for imaging a first image of the inside of the subject; an intra-body indwelling capsule 2, for imaging a second image of the inside of the subject; a monitor device 12 for receiving the second image; a receiving device 13, a monitor 11 for displaying the first image or the second image; and an image switching device 10. The intra-body indwelling capsule 2 is arranged at the distal end of the inserting unit 5, and the separation from the inserting unit 5 is detected and the separation detection result is transmitted. The receiving device 13 receives the separation detection result.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: September 18, 2012
    Assignees: Olympus Corporation, Olympus Medical Systems Corp.
    Inventors: Katsumi Hirakawa, Takeshi Yokoi, Akio Uchiyama, Shinsuke Tanaka, Hironobu Takizawa
  • Publication number: 20120226092
    Abstract: Provided is an intra-subject medical system which includes a body-insertable device and a physical quantity generator. The body-insertable device is to be introduced into a subject, is covered by a capsule-shaped exterior member, and includes a physical quantity detecting member which has a directivity to detect a predetermined physical quantity; at least one functional member which has a necessary function for examining or treating inside the subject; and a switch control unit which controls an on/off states or operation mode of the at least one functional member when the physical quantity detecting member detects a physical quantity. The physical quantity generator has a physical quantity emitting unit which emits a temporary physical quantity inside the subject; and a physical quantity direction changing unit which changes an emission direction of the physical quantity.
    Type: Application
    Filed: February 29, 2012
    Publication date: September 6, 2012
    Applicant: Olympus Medical Systems Corp.
    Inventors: Hironao Kawano, Hironobu Takizawa, Akio Uchiyama, Atsushi Chiba, Takeshi Yokoi, Hideo Ito, Hidetake Segawa
  • Patent number: 8257257
    Abstract: A capsule type medical device is of a type of a capsule type medical device that is introduced inside the living body to gather in-vivo information, and comprises a capsule shaped casing; an in-vivo information acquisition device for acquiring the in-vivo information; a communication device for sending the in-vivo information acquired by the in-vivo information acquisition device to outside of the living body by wireless; at least one pair of first electrodes provided in a vicinity of one end along an axis of the casing for giving electric stimulation to body tissue in the living body; a first current control device for sending current to the first electrodes; and an interelectrode distance variation device for changing a distance between the electrodes.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: September 4, 2012
    Assignee: Olympus Corporation
    Inventors: Hironobu Takizawa, Akio Uchiyama, Hironao Kawano, Takeshi Yokoi, Masatoshi Homan
  • Patent number: 8100888
    Abstract: A capsulated body having a facility, which acquires biomedical information through endoscopic examination or the like, incorporated therein is inserted into a duct within a living body. Whether the capsulated body has halted for a certain period of time is detected from the time-varying position of the capsulated body or a time-passing change in an image. If it is judged that the capsulated body has halted at a stenosed region or the like, the fact is notified so that the capsulated body can be collected immediately.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: January 24, 2012
    Assignee: Olympus Corporation
    Inventors: Hidetake Segawa, Hironobu Takizawa, Hideyuki Adachi, Takeshi Yokoi
  • Patent number: 8091164
    Abstract: There is provided an assisting table capable of horizontally holding a subject and holding an angle at which a head of a subject is supported in an inclined state, and an assisting instrument, which includes a containing portion for containing a fluid to introduce a capsule medical device into a body cavity, capable of ejecting a capsule medical device with the fluid from the containing portion by detachably attaching the capsule medical device at a distal end opening portion of the containing portion and by changing a shape of the containing portion.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: January 10, 2012
    Assignee: Olympus Corporation
    Inventors: Hidetake Segawa, Takeshi Yokoi, Akira Kikuchi, Hironobu Takizawa, Akio Uchiyama
  • Patent number: 8089508
    Abstract: The present invention provides a capsule type medical system capable of displaying different images on a monitor in such a display mode that a diagnosis can be easily made when one capsule type endoscope includes a plurality of image pickup units. A capsule type endoscope includes a plurality of image pickup elements for generating different image data and a storage unit for previously storing image pickup procedures of the image pickup elements, and records or transmits the different image data, captured in accordance with any of the procedures stored in the storage unit, in time series. An extracorporeal display unit includes a display control section for controlling a method for displaying the different image data recorded or transmitted.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: January 3, 2012
    Assignee: Olympus Corporation
    Inventor: Takeshi Yokoi
  • Publication number: 20110319715
    Abstract: An encapsulated endoscope system in accordance with the present invention comprises: an encapsulated endoscope that rotates to develop a thrust; a controller that moves the encapsulated endoscope in an intended direction of advancement; an imaging unit incorporated in the encapsulated endoscope; and an image processing unit that receives image data sent from the imaging unit, and produces an image, which results from rotation of the received image data, according to the rotational phase of the encapsulated endoscope.
    Type: Application
    Filed: September 1, 2011
    Publication date: December 29, 2011
    Applicant: OLYMPUS CORPORATION
    Inventors: Akio Uchiyama, Hironobu Takizawa, Takeshi Yokoi, Hitoshi Mizuno
  • Patent number: 8062210
    Abstract: An encapsulated endoscope system in accordance with the present invention comprises: an encapsulated endoscope that rotates to develop a thrust; a controller that moves the encapsulated endoscope in an intended direction of advancement; an imaging unit incorporated in the encapsulated endoscope; and an image processing unit that receives image data sent from the imaging unit, and produces an image, which results from rotation of the received image data, according to the rotational phase of the encapsulated endoscope.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: November 22, 2011
    Assignee: Olympus Corporation
    Inventors: Akio Uchiyama, Hironobu Takizawa, Takeshi Yokoi, Hitoshi Mizuno
  • Patent number: 8033989
    Abstract: An encapsulated endoscope system in accordance with the present invention comprises: an encapsulated endoscope that rotates to develop a thrust; a controller that moves the encapsulated endoscope in an intended direction of advancement; an imaging unit incorporated in the encapsulated endoscope; and an image processing unit that receives image data sent from the imaging unit, and produces an image, which results from rotation of the received image data, according to the rotational phase of the encapsulated endoscope.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: October 11, 2011
    Assignee: Olympus Corporation
    Inventors: Akio Uchiyama, Hironobu Takizawa, Takeshi Yokoi, Hitoshi Mizuno