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: 20070225552
    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: Application
    Filed: May 22, 2007
    Publication date: September 27, 2007
    Applicant: OLYMPUS CORPORATION
    Inventors: Hidetake Segawa, Takeshi Yokoi, Akira Kikuchi, Hironobu Takizawa, Akio Uchiyama
  • Publication number: 20070219435
    Abstract: An assembling method of a capsule medical apparatus is provided. The capsule medical apparatus includes a sealed capsule container having an image pick-up unit which picks up an image of a portion illuminated by an illuminating unit, and an objective optical system which is arranged in front of the image pick-up unit. The assembling method includes a positioning step of positioning so that a relative position of a reference position of a fixing frame in the objective optical system matches a reference position of an image area of the image pick-up unit, and a fixing step of, after the positioning step, contacting a reference down-surface of the fixing frame with the top surface of the image pick-up unit and fixing the image pick-up unit and the fixing frame.
    Type: Application
    Filed: May 7, 2007
    Publication date: September 20, 2007
    Inventors: Hidetake Segawa, Takeshi Yokoi, Wataru Ohno
  • Publication number: 20070219405
    Abstract: A medical apparatus main body such as a capsule main body inserted in the body cavity includes a thrust generating mechanism such as a spiral projection. The medical apparatus main body further forms an information providing unit comprising at least one of a storing unit for storing a state of the thrust generating mechanism and a direction detecting unit for detecting the direction of the medical apparatus main body. An input unit instructs a thrust generating direction of the thrust generating mechanism and thus a control unit changes continuously or the like a thrust generating state of the thrust generating mechanism based on information from the information providing unit.
    Type: Application
    Filed: May 4, 2007
    Publication date: September 20, 2007
    Applicant: OLYMPUS CORPORATION
    Inventors: Akio Uchiyama, Hironao Kawano, Takeshi Yokoi, Hironobu Takizawa, Kenichi Arai, Kazushi Ishiyama, Masahiko Sendoh
  • Publication number: 20070197872
    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: April 12, 2007
    Publication date: August 23, 2007
    Applicant: OLYMPUS CORPORATION
    Inventors: Akio Uchiyama, Hironobu Takizawa, Takeshi Yokoi, Hitoshi Mizuno
  • Publication number: 20070197869
    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; 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: April 12, 2007
    Publication date: August 23, 2007
    Applicant: OLYMPUS CORPORATION
    Inventors: Akio Uchiyama, Hironobu Takizawa, Takeshi Yokoi, Hitoshi Mizuno
  • Publication number: 20070197870
    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: April 12, 2007
    Publication date: August 23, 2007
    Applicant: OLYMPUS CORPORATION
    Inventors: Akio Uchiyama, Hironobu Takizawa, Takeshi Yokoi, Hitoshi Mizuno
  • Publication number: 20070191671
    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: January 19, 2007
    Publication date: August 16, 2007
    Applicant: Olympus Medical Systems Corp.
    Inventors: Hironao Kawano, Hironobu Takizawa, Akio Uchiyama, Atushi Chiba, Takeshi Yokoi, Hideo Ito, Hidetake Segawa
  • Publication number: 20070173691
    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: February 6, 2007
    Publication date: July 26, 2007
    Applicant: OLYMPUS CORPORATION
    Inventors: Takeshi Yokoi, Hironobu Takizawa, Akio Uchiyama, Hitoshi Mizuno
  • Patent number: 7244229
    Abstract: A capsule endoscope is disclosed having an illumination means, an imaging system that includes an objective optical system, and a transparent cover. The invention is characterized by one of: (1) the transparent cover has a larger radius of curvature in a central region of the field of view of the objective optical system than the radius of curvature of the transparent cover in a peripheral region of the field of view of the objective optical system, or (2) the imaging system has a different near point of focus distance for a central region of the field of view than the near point of focus distance of a region that is peripheral to the central region of the field of view and the objective optical system includes a meniscus lens element of positive refractive power and a plano-convex lens element.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: July 17, 2007
    Assignee: Olympus Corporation
    Inventors: Takeshi Yokoi, Akira Hasegawa, Shinya Matsumoto, Takayuki Suzuki, Hidetake Segawa, Hironobu Takizawa
  • Publication number: 20070161851
    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: Application
    Filed: March 6, 2007
    Publication date: July 12, 2007
    Applicant: OLYMPUS CORPORATION
    Inventors: Hironobu Takizawa, Akio Uchiyama, Hironao Kawano, Takeshi Yokoi, Masatoshi Homan
  • Publication number: 20070161862
    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: February 6, 2007
    Publication date: July 12, 2007
    Applicant: OLYMPUS CORPORATION
    Inventors: Takeshi Yokoi, Hironobu Takizawa, Akio Uchiyama, Hitoshi Mizuno
  • Publication number: 20070142708
    Abstract: A capsule-type medical device which is advanced through a digestive tract of a human being or animal for conducting an examination, therapy, or treatment is provided. The capsule-type medical device includes: a plurality of capsule bodies; a soft linking unit which links the plurality of capsule bodies and has an outer diameter less than that of any of the capsule bodies; and a joining member which joins two or more of the plurality of capsule bodies in a prescribed position.
    Type: Application
    Filed: February 13, 2007
    Publication date: June 21, 2007
    Applicant: OLYMPUS CORPORATION
    Inventors: Takeshi Yokoi, Hironobu Takizawa, Hidetake Segawa, Hitoshi Mizuno, Hideyuki Adachi, Hiroki Moriyama, Hisao Yabe
  • Publication number: 20070142710
    Abstract: A capsule-type medical device which is advanced through a digestive tract of a human being or animal for conducting an examination, therapy, or treatment is provided. The capsule-type medical device includes: a plurality of capsule bodies; a soft linking unit which links the plurality of capsule bodies and has an outer diameter less than that of any of the capsule bodies; and a joining member which joins two or more of the plurality of capsule bodies in a prescribed position.
    Type: Application
    Filed: February 16, 2007
    Publication date: June 21, 2007
    Applicant: OLYMPUS CORPORATION
    Inventors: Takeshi Yokoi, Hironobu Takizawa, Hidetake Segawa, Hitoshi Mizuno, Hideyuki Adachi, Hiroki Moriyama, Hisao Yabe
  • Publication number: 20070055105
    Abstract: A capsule type endoscope includes an illumination device, an imaging device, and a transparent cover covering the illumination device and the imaging device. The imaging device has an objective optical system and an image sensor. When the objective optical system satisfies Condition (1) described below and a white cylinder with a reflectance of 90%, satisfying Condition (3) described below, is observed, illuminance of the imaging surface of the image sensor satisfies Condition (2) described below, in a state where a longitudinal center axis of a capsule coincides with the center axis of the white cylinder with a reflectance of 90%. ??50°??(1) T1×0.5?T2??(2) D=1.
    Type: Application
    Filed: November 7, 2006
    Publication date: March 8, 2007
    Inventors: Hirohiko Matsuzawa, Takeshi Yokoi, Tatsuya Orihara, Mitsujiro Konno
  • Publication number: 20070032699
    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: Application
    Filed: October 11, 2006
    Publication date: February 8, 2007
    Applicant: OLYMPUS CORPORATION
    Inventors: Hidetake Segawa, Hironobu Takizawa, Hideyuki Adachi, Takeshi Yokoi
  • Patent number: 7153259
    Abstract: A capsule type endoscope includes an illumination device, an imaging device, and a transparent cover covering the illumination device and the imaging device. The imaging device has an objective optical system and an image sensor. When the objective optical system satisfies Condition (1) described below and a white cylinder with a reflectance of 90%, satisfying Condition (3) described below, is observed, illuminance of the imaging surface of the image sensor satisfies Condition (2) described below, in a state where a longitudinal center axis of a capsule coincides with the center axis of the white cylinder with a reflectance of 90%. ??50°??(1) T1×0.5?T2??(2) D=1.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: December 26, 2006
    Assignee: Olympus Corporation
    Inventors: Hirohiko Matsuzawa, Takeshi Yokoi, Tatsuya Orihara, Mitsujiro Konno
  • Patent number: 7144366
    Abstract: A capsule medical apparatus for medical actions such as examination and treatment in the body detects by a sensor or the like whether it is just being evacuated from the body or it has already been evacuated. Upon detecting the capsule medical apparatus is positioned in the large intestine or it has already been evacuated, the capsule medical apparatus notifies such information in association with the detection.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: December 5, 2006
    Assignee: Olympus Corporation
    Inventors: Hironobu Takizawa, Takeshi Yokoi, Akira Kikuchi
  • Publication number: 20060270903
    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: July 31, 2006
    Publication date: November 30, 2006
    Applicant: OLYMPUS CORPORATION
    Inventors: Akio Uchiyama, Hironobu Takizawa, Takeshi Yokoi, Hitoshi Mizuno
  • Patent number: 7122001
    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 8, 2003
    Date of Patent: October 17, 2006
    Assignee: Olympus Corporation
    Inventors: Akio Uchiyama, Hironobu Takizawa, Takeshi Yokoi, Hitoshi Mizuno
  • Publication number: 20060229592
    Abstract: An encapsulated medical device includes a radio antenna through which the encapsulated medical device transmits or receives a radio wave to or from an extracorporeal device. The encapsulated medical device is passed through the lumen of a body cavity in order to examine, cure, or treat an internal region of the body cavity under the control of the extracorporeal device. A capsule body included in the encapsulated medical device has an extended portion formed at an upper end of one axis of a cross section of the capsule body cut at right angle to the longitudinal axis thereof. Herein, the cross section of the capsule body is non-circular. However, providing the capsule body does not has the extended portion, the cross section of the capsule body is substantially circular.
    Type: Application
    Filed: June 13, 2006
    Publication date: October 12, 2006
    Applicant: OLYMPUS CORPORATION
    Inventors: Takeshi Yokoi, Hironobu Takizawa, Hidetake Segawa, Hideyuki Adachi