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: 20040175289
    Abstract: A medical capsule is taken into the human body to collect biomedical information about the human body. When the medical capsule is discharged from within the human body, a medical capsule retrieval device detects the medical capsule using a magnet or a sensor, and catches the medical capsule with a net.
    Type: Application
    Filed: January 21, 2004
    Publication date: September 9, 2004
    Applicant: Olympus Corporation
    Inventors: Hironobu Takizawa, Takeshi Yokoi
  • Publication number: 20040176685
    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: Application
    Filed: March 1, 2004
    Publication date: September 9, 2004
    Applicant: OLYMPUS CORPORATION
    Inventors: Hironobu Takizawa, Takeshi Yokoi, Akira Kikuchi
  • Publication number: 20040111011
    Abstract: A capsule medical apparatus has a specific space setting unit which designates a specific space in vivo and a capsule which is inserted or swallowed in vivo. Further, the capsule medical apparatus has a recognizing unit which recognizes whether or not the capsule exists in the specific space set by the specific space setting unit and a control unit which controls a state of the capsule based on an output from the recognizing unit. Thus, the capsule reaches the specific space, then, the state of the capsule is controlled, and medical activity is performed.
    Type: Application
    Filed: May 15, 2003
    Publication date: June 10, 2004
    Applicant: OLYMPUS OPTICAL CO., LTD.
    Inventors: Akio Uchiyama, Takeshi Yokoi, Wataru Ono, Jun Hasegawa
  • Publication number: 20040027459
    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: August 4, 2003
    Publication date: February 12, 2004
    Applicant: OLYMPUS OPTICAL CO., LTD.
    Inventors: Hidetake Segawa, Takeshi Yokoi, Wataru Ohno
  • Publication number: 20030229268
    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 8, 2003
    Publication date: December 11, 2003
    Applicant: OLYMPUS OPTICAL CO., LTD.
    Inventors: Akio Uchiyama, Hironobu Takizawa, Takeshi Yokoi, Hitoshi Mizuno
  • Publication number: 20030181788
    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: March 24, 2003
    Publication date: September 25, 2003
    Applicant: OLYMPUS OPTICAL CO., LTD.
    Inventors: Takeshi Yokoi, Hironobu Takizawa, Akio Uchiyama, Hitoshi Mizuno
  • Publication number: 20030171653
    Abstract: A capsule endoscope is provided with lighting means for illuminating the interior of a living body, an image pickup means for capturing an image of a site illuminated by the lighting means, and a transparent cover which houses the image pickup means and the lighting means within a sealed, cylindrical-shaped capsule case. The image pickup means includes an objective optical system having a depth of field. An object within the depth of field of the objective optical system is illuminated more evenly than possible with a single lighting means by arranging multiple lighting means at the periphery of the objective optical system and causing the beams from individual lighting means to overlap in specified ways so that a nearly uniform illumination of an object of interest is achieved. Light diffusers may be employed to diffuse the light from the light sources, and a color correction filter may be used.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 11, 2003
    Inventors: Takeshi Yokoi, Akira Hasegawa, Shinya Matsumoto, Takayuki Suzuki, Hidetake Segawa, Hironobu Takizawa
  • Publication number: 20030171652
    Abstract: A capsule endoscope is disclosed that includes means for illuminating an object, means for imaging the object, and a transparent cover having a center of curvature. The transparent cover covers the illumination means and the imaging means, and the imaging means includes an objective optical system and an image detecting element. The illumination means is positioned relative to the image detecting element, as viewed axially from the object side of the capsule endoscope, so that an area that is symmetrically positioned about the optical axis of the objective optical system from a light emitting area of the illumination means overlaps an area of the image detecting element, but does not overlap any areas of the image detecting element that are used for image detection.
    Type: Application
    Filed: March 5, 2003
    Publication date: September 11, 2003
    Inventors: Takeshi Yokoi, Akira Hasegawa, Shinya Matsumoto, Takayuki Suzuki, Hidetake Segawa, Hironobu Takizawa
  • Publication number: 20030171648
    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: Application
    Filed: January 21, 2003
    Publication date: September 11, 2003
    Inventors: Takeshi Yokoi, Akira Hasegawa, Shinya Matsumoto, Takayuki Suzuki, Hidetake Segawa, Hironobu Takizawa
  • Publication number: 20030171649
    Abstract: A capsule endoscope includes an image sensor that is fixed to a substrate and is covered by a transparent cover member such that a sealed air space is provided between the objective optical system and the image sensor. Also, a capsule endoscope is disclosed that includes a transparent cover member, an image sensor having an imaging area that is covered by the transparent cover member; and an objective optical system which includes at least two lenses. The lens of the objective optical system that is nearest the image side is either integral with, or is adhered to, the transparent cover member. The transparent cover member seals an air space above the imaging area of the image sensor from dust which may be generated during a focusing adjustment of the two lenses. A focusing method adjusts the position of a first lens, in order from the object side, relative to that of a second lens which is nearest the image side.
    Type: Application
    Filed: January 28, 2003
    Publication date: September 11, 2003
    Inventors: Takeshi Yokoi, Akira Hasegawa, Shinya Matsumoto, Takayuki Suzuki, Hidetake Segawa, Hironobu Takizawa
  • Publication number: 20030073935
    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: April 26, 2002
    Publication date: April 17, 2003
    Applicant: OLYMPUS OPTICAL CO., LTD.
    Inventors: Hidetake Segawa, Hironobu Takizawa, Hideyuki Adachi, Takeshi Yokoi
  • Publication number: 20030060734
    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: September 20, 2002
    Publication date: March 27, 2003
    Applicant: OLYMPUS OPTICAL CO., LTD.
    Inventors: Takeshi Yokoi, Hironobu Takizawa, Hidetake Segawa, Hideyuki Adachi
  • Publication number: 20030023150
    Abstract: The capsule-type medical device in accordance with the present invention is advanced the inside of the somatic cavities and lumens of humans being or animals for conducting examination, therapy, or treatment. The capsule-type medical device comprises a plurality of hard units and a soft linking unit which links the plurality of hard units and has a diameter less than that of any of the hard units, wherein one of the plurality of hard units is different in size from other hard units.
    Type: Application
    Filed: July 25, 2002
    Publication date: January 30, 2003
    Applicant: OLYMPUS OPTICAL CO., LTD.
    Inventors: Takeshi Yokoi, Hironobu Takizawa, Hidetake Segawa, Hitoshi Mizuno, Hideyuki Adachi, Hiroki Moriyama, Hisao Yabe
  • Publication number: 20010021934
    Abstract: The present invention pertains to technology which makes possible searching information on web pages that is in different languages with data input in one's own language. The present invention provides a processing device in communication with the Internet, the processing device executing a read processing module (e.g., a web browser) processing web pages being supplied or provided by a server in communication with the Internet and displaying the web pages on a display unit. The data input on a web page displayed by the read processing module is examined and a determination is made whether the data input requires a specific process. Based on the result of that judgment, the specific process is performed on the input data and the results of the specific process are used in processing requests of the web page, such as processing requests to be sent to the server.
    Type: Application
    Filed: February 28, 2001
    Publication date: September 13, 2001
    Inventor: Takeshi Yokoi
  • Patent number: 5779625
    Abstract: An endoscope system including an endoscope having an insertion section which extends from a proximal end to a distal end and is inserted into a cavity under inspection and an operation section connected to the proximal end of the insertion section, and a protection cover including an insertion section inserting channel which extends from a proximal end to a distal end and into which said insertion section of the endoscope is insertable and a conduit channel which extends from the proximal end to the distal end, the improvement being characterized in that a distal end portion of the insertion section has a non-circular cross section such as a semicircular or oval cross section and a proximal end portion of the insertion section has a substantially circular cross section. A distal end member of the insertion section inserting channel has an accommodating portion which is a corresponding non-circular cross section.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: July 14, 1998
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Akira Suzuki, Hisao Yabe, Yoshihiro Iida, Hideo Ito, Yoshio Tashiro, Minoru Yamazaki, Osamu Tamada, Hiroshi Ishii, Jin Kira, Takeshi Yokoi
  • Patent number: 5749829
    Abstract: An endoscope system in accordance with the present invention comprises: an endoscope having an insertional part, operation unit, and connector unit set in array, and including channels that communicate with an opening formed in the distal section of the insertional part and an opening formed in the operation unit or connector unit; and at least one cleaning instrument having a flexible tube that can be connected to the opening formed in the operation unit or connector unit of the endoscope and that has the overall length thereof set to 30 cm or larger.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: May 12, 1998
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Takeshi Yokoi, Takahiro Kishi, Tsutomu Ishiguro, Masaaki Nakazawa, Yukio Takahashi, Hideo Ito, Hisao Yabe, Satoshi Nakagawasai
  • Patent number: 5738630
    Abstract: An endoscope system including an endoscope having an insertion section which extends from a proximal end to a distal end and is inserted into a cavity under inspection and an operation section connected to the proximal end of the insertion section, and a protection cover including an insertion section inserting channel which extends from a proximal end to a distal end and into which said insertion section of the endoscope is insertable and a conduit channel which extends from the proximal end to the distal end, the improvement being characterized in that a distal end portion of the insertion section has a non-circular cross section such as a semicircular or oval cross section and a proximal end portion of the insertion section has a substantially circular cross section. A distal end member of the insertion section inserting channel has an accommodating portion which is a corresponding non-circular cross section.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: April 14, 1998
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Akira Suzuki, Hisao Yabe, Yoshihiro Iida, Hideo Ito, Yoshio Tashiro, Minoru Yamazaki, Osamu Tamada, Hiroshi Ishii, Jin Kira, Takeshi Yokoi
  • Patent number: 5674182
    Abstract: An endoscope system including an endoscope having an insertion section which extends from a proximal end to a distal end and is inserted into a cavity under inspection and an operation section connected to the proximal end of the insertion section, and a protection cover including an insertion section inserting channel which extends from a proximal end to a distal end and into which said insertion section of the endoscope is insertable and a conduit channel which extends from the proximal end to the distal end, the improvement being characterized in that a distal end portion of the insertion section has a non-circular cross section such as a semicircular or oval cross section and a proximal end portion of the insertion section has a substantially circular cross section. A distal end member of the insertion section inserting channel has an accommodating portion which is a corresponding non-circular cross section.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: October 7, 1997
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Akira Suzuki, Hisao Yabe, Yoshihiro Iida, Hideo Ito, Yoshio Tashiro, Minoru Yamazaki, Osamu Tamada, Hiroshi Ishii, Jin Kira, Takeshi Yokoi
  • Patent number: 5529580
    Abstract: A surgical resecting tool (1) whereby a cartilage, cartilage knob or tumor within a body cavity, for example, such articulation cavity as of a knee is resected from outside the body cavity without being incised and is taken out of the body cavity is provided with a rigid outer tube (4) removably provided in the front part of a body part (2) which is also a holding part and has a rotary power source 28. The outer tube (4) is provided with an opening (7) near the front end part and with a curved part 9 in the rear of the opening (7). The outer tube 4 is provided with a cutting part (13) in the front end part and is removably connected in the rear end part to the rotary power source (28) to resect a living body tissue by rotating and driving the cutting part (13). An inner tube (6) having a flexible part (12) at least in the position corresponding to the above mentioned curved part (9 ) is inserted through the outer tube (4).
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: June 25, 1996
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Hiroyuki Kusunoki, Koji Shimomura, Takeshi Yokoi, Shozo Shibuya, Mototsugu Ogawa, Takeaki Nakamura, Tadao Hagino
  • Patent number: 5125411
    Abstract: An ultrasound probe is located in a chamber defined in a housing to be inserted into a body cavity of a subject. A drive shaft is connected to the probe to transmit a rotational force and, for this purpose, is coupled to a drive source via a passage of an insertion section of an ultrasound diagnostic apparatus. A first sealing member is provided for blocking a communication between the chamber and one end of the passage, a second sealing member is provided for sealing the other end of the passage of the guide member, and a bypass communication passage is provided for enabling the passage to communicate with the chamber. An opening/closing valve is provided for opening and closing the communication passage via which an ultrasound transmitting medium is filled in the chamber and the passage of the insertion passage. The communication passage is blocked after the filling operation has been done.
    Type: Grant
    Filed: January 31, 1991
    Date of Patent: June 30, 1992
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Takeshi Yokoi, Kazuya Saiga, Kenji Hirooka