Patents by Inventor Kazutaka Nakatsuchi

Kazutaka Nakatsuchi 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).

  • Patent number: 8732546
    Abstract: A receiving apparatus for receiving a radio signal through an antenna. The radio signal is transmitted by a moving transmitting apparatus and has a frame configuration which includes at least a main information portion that includes information main part based on an image signal and an added portion that includes synchronization information and parameter information specific to the transmitting apparatus. The receiving apparatus includes a detecting unit that is configured to detect, from the received radio signal, an arrangement position of the parameter information in a frame configuration in which an error-correcting code is added immediately after the parameter information to be transmitted in a predetermined arrangement position of the frame configuration. A parameter information error correcting unit is configured to perform error correction on the parameter information with the error-correcting code that is added immediately after the detected arrangement position of the parameter information.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: May 20, 2014
    Assignee: Olympus Corporation
    Inventors: Manabu Fujita, Toshiaki Shigemori, Seiichiro Kimoto, Ayako Nagase, Akira Matsui, Kazutaka Nakatsuchi
  • Patent number: 8632457
    Abstract: An object of the invention is to receive, with a high sensitivity, a radio signal transmitted within a short time before a capsule endoscope reaches the stomach of a subject and acquire, in a satisfactory state, information on the interior of the subject such as image data picked up by the capsule endoscope. The receiving apparatus according to the invention includes a plurality of receiving antennas including a specified receiving antenna for receiving a radio signal from a capsule endoscope before the stomach is reached, a switching controller, an arrival determining unit and a mode switching unit. The switching controller performs a control operation for switching to and maintaining the receiving antenna in an initial mode or a control operation for switching to the receiving antennas in a normal mode. The arrival determining unit determines whether the capsule endoscope has reached the stomach or not.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: January 21, 2014
    Assignee: Olympus Corporation
    Inventors: Ayako Nagase, Seiichiro Kimoto, Manabu Fujita, Toshiaki Shigemori, Akira Matsui, Kazutaka Nakatsuchi
  • Patent number: 8184148
    Abstract: A capsule endoscope 3 is inserted into a subject and transmits a capsule ID, which is received by an RF receiving unit 11 of a receiving apparatus 2. A capsule ID detecting circuit 19 detects the capsule ID. A control unit C recognizes a type of the capsule endoscope 3 based on the detected capsule ID, and changes over a threshold of received field strength of a receiving antenna. Thus, a content of processing for the capsule endoscope 3 is changed over, and a selection controller C1 selects a receiving antenna for an image receiving period from receiving antennas A1 to An.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: May 22, 2012
    Assignee: Olympus Corporation
    Inventors: Toshiaki Shigemori, Manabu Fujita, Ayako Nagase, Akira Matsui, Kazutaka Nakatsuchi
  • Patent number: 8177712
    Abstract: To provide a capsule endoscope in which a degree of appearance of a sting-like member in a captured image is reduced, a capsule endoscope (2) includes an optical system (18) having a predetermined principal point, an imaging unit (19) which captures light focused by the optical system (18), and an attachment member (28) which is arranged at a predetermined position on a window portion (17a) having optical transparency and forming a portion of an outer casing member (17) housing the optical system (18) and the imaging unit (19). The capsule endoscope (2) further includes a traction member (29) having one end secured to the attachment member (28) and extending by a predetermined distance in a direction from the optical system (18) toward a position of the attachment member (28). Since the traction member (29) has such a structure, an appearance of an image of the traction member (29) can be reduced at the imaging unit (19).
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: May 15, 2012
    Assignee: Olympus Corporation
    Inventors: Noriyuki Fujimori, Takemitsu Honda, Hiroshi Suzushima, Tatsuya Orihara, Masatoshi Homan, Kazutaka Nakatsuchi
  • Patent number: 8179429
    Abstract: To achieve a body-insertable apparatus such as a capsule endoscope that moves in a subject at a low speed at which acquisition of in-vivo information is sufficiently possible, the body-insertable apparatus is inserted into the subject and moves in the subject. The body-insertable apparatus includes an in-vivo information acquiring unit that acquires the in-vivo information, an external case member accommodating the in-vivo information acquiring unit, and a moving-speed suppressing unit positioned inside or outside of the external case member to generate a predetermined suppressing force for suppressing the moving speed between an inner wall of a passage route in the subject and the external case member.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: May 15, 2012
    Assignee: Olympus Corporation
    Inventors: Kazutaka Nakatsuchi, Noriyuki Fujimori, Masatoshi Homan, Takemitsu Honda, Hiroshi Suzushima, Tatsuya Orihara
  • Patent number: 8175559
    Abstract: The present invention is intended to be able to ensure detecting whether an open-circuit occurs to a feeder within short time with simple configuration. A receiving apparatus 2 according to the present invention receives image information transmitted from a capsule endoscope 3 through a coaxial cable and a receiving antenna selected and switched to from among coaxial cables 9a to 9d connected to receiving antennas 8a to 8d, respectively by a changeover switch 20. The receiving apparatus 2 includes a changeover switch 22, an open-circuit detecting circuit 23, and a control unit 26. The changeover switch 22 branches the coaxial cables 9a to 9d near the changeover switch 20, and selects and switches to one of the branched coaxial cables.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: May 8, 2012
    Assignees: Olympus Corporation, Olympus Medical Systems, Corp.
    Inventors: Masatoshi Homan, Ayako Nagase, Seiichiro Kimoto, Kazutaka Nakatsuchi, Manabu Fujita, Akira Matsui, Toshiaki Shigemori
  • Patent number: 8131030
    Abstract: Each of detecting circuits 36a, 36d, 36f, and 36h detects a key signal such as a horizontal synchronization signal, a vertical synchronization signal, a capsule ID, a WB coefficient, and error information, i.e., a key signal superposed on RF signals received by an RF receiving unit 33. Each of determining units 36b, 36c, 36e, 36g, and 36i determines whether an image is valid or invalid based on the result of detection. A recording deciding unit 36k decides whether to record the image information in a storage unit 35 or not based on the result of determination. Thus, a receiving apparatus 3 can stop recording the image information received when a trouble occurs, thereby preventing defective images from mixing into the recorded image information, and preventing a recorded image size from becoming large, whereby necessary images can be recorded within a predetermined examination time.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: March 6, 2012
    Assignee: Olympus Corporation
    Inventors: Manabu Fujita, Toshiaki Shigemori, Seiichiro Kimoto, Ayako Nagase, Akira Matsui, Kazutaka Nakatsuchi
  • Patent number: 8102266
    Abstract: A transmitting and receiving apparatus (2) that transmits a radio signal to a capsule endoscope includes: a transmitting level determining unit (25) disposed near a transmitting resonance circuit (22); a frequency controller (26) that controls an oscillation frequency based on a result of determination executed by the transmitting level determining unit (25); and a frequency variable oscillator (16) that changes the oscillation frequency, based on the control of the frequency controller (26). By changing the oscillation frequency so that a transmission level becomes large, the oscillation frequency can be changed so as to decrease a frequency difference between the oscillation frequency and the resonance frequency of the resonance circuit (22) that changes along a variation in a self inductance value of a coil (24).
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: January 24, 2012
    Assignee: Olympus Corporation
    Inventors: Hatsuo Shimizu, Takemitsu Honda, Masayuki Hashimoto, Kazutaka Nakatsuchi
  • Publication number: 20110254380
    Abstract: A power supply apparatus supplies power to a body-insertable apparatus from outside a subject. The body-insertable apparatus is introduced into the subject and obtains intra-subject information. The power supply apparatus includes a first electric cable which is wound around a circumferential surface of a garment and forms a coil, the garment covering the subject, the coil having a non-directionality at a time of power supply; and a power supply unit which supplies power to the body-insertable apparatus in a contactless manner through the coil.
    Type: Application
    Filed: June 28, 2011
    Publication date: October 20, 2011
    Applicant: Olympus Corporation
    Inventors: Hatsuo SHIMIZU, Takemitsu HONDA, Tetsuo MINAI, Kazutaka NAKATSUCHI
  • Patent number: 8038601
    Abstract: A pill inserted into a body of a patient acquires in-vivo information on the body of the patient. A receiver disposed on the outside of the body receives the in-vivo information on the body of the patient from the pill through an antenna. When a power supply signal is transmitted from the receiver to the pill through the antenna, a drive control signal for making the pill to execute a predetermined function is superposed on the power supply signal, which makes it possible to control various functions performed by the pill from outside.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: October 18, 2011
    Assignee: Olympus Corporation
    Inventors: Hatsuo Shimizu, Kazutaka Nakatsuchi
  • Patent number: 8041422
    Abstract: An in-body information acquiring apparatus includes a function executing unit that realizes a predetermined function inside a body of a patient. A power-supply circuit includes a power unit that includes a cell and that outputs a first current and a first voltage; and a converter that converts the first current to a second current, which is a current required to operate the function executing unit for a predetermined time, and converts the first voltage to a second voltage, which is a voltage required to operate the function executing unit.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: October 18, 2011
    Assignee: Olympus Corporation
    Inventors: Takemitsu Honda, Toshiaki Shigemori, Seiichiro Kimoto, Ayako Nagase, Katsuyoshi Sasagawa, Hatsuo Shimizu, Tetsuo Minai, Tsutomu Nakamura, Hiroshi Suzushima, Noriyuki Fujimori, Tatsuya Orihara, Katsuya Suzuki, Masayuki Hashimoto, Kazutaka Nakatsuchi
  • Publication number: 20110252291
    Abstract: A receiving apparatus that can prevent beforehand that a portable recording medium is erroneously ejected during examination, and can prevent body cavity image data from being lost and the portable recording medium from being damaged is provided. When an ejection operation of the portable recording medium is detected (step S103: Yes) during a recording operation (step S101: Yes), a warning unit is operated before the portable recording medium is ejected to give a warning to a user so as not to perform the ejection operation (step S105). Accordingly, the portable recording medium can be prevented beforehand from being ejected during the recording operation, thereby preventing body cavity image data from being lost and the portable recording medium from being damaged.
    Type: Application
    Filed: June 21, 2011
    Publication date: October 13, 2011
    Applicant: OLYMPUS CORPORATION
    Inventors: Manabu FUJITA, Toshiaki SHIGEMORI, Seiichiro KIMOTO, Ayako NAGASE, Akira MATSUI, Kazutaka NAKATSUCHI
  • Patent number: 8036615
    Abstract: A portable simplified image display apparatus and a receiving system are provided, which can sensuously know the state of received strength of radio signals transmitted from a body-insertable apparatus, in either case of before examination or during examination. A viewer (7) includes a detector that detects received strength of a radio signal transmitted from a capsule endoscope (2) and a notifying unit that notifies the detected state of received strength in a display pattern such as a picture display of a capsule (41). Therefore, in either case of before examination or during examination, the state of received strength of radio signals transmitted from the capsule endoscope (2) can be sensuously known according to the notification result of the state of received strength. If it is during examination, supplementary observation can be performed based on an excellent received image by searching a site having strong received strength, thereby enabling contribution to satisfactory examination.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: October 11, 2011
    Assignees: Olympus Corporation, Olympus Medical Systems Corp.
    Inventors: Seiichiro Kimoto, Manabu Fujita, Ayako Nagase, Kazutaka Nakatsuchi, Akira Matsui, Toshiaki Shigemori
  • Patent number: 8029436
    Abstract: A power supply apparatus supplies power to a body-insertable apparatus from outside a subject. The body-insertable apparatus is introduced into the subject and obtains intra-subject information. The power supply apparatus includes a first electric cable which is wound around a circumferential surface of a garment and forms a coil, the garment covering the subject, the coil having a non-directionality at a time of power supply; and a power supply unit which supplies power to the body-insertable apparatus in a contactless manner through the coil.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: October 4, 2011
    Assignee: Olympus Corporation
    Inventors: Hatsuo Shimizu, Takemitsu Honda, Tetsuo Minai, Kazutaka Nakatsuchi
  • Patent number: 8002693
    Abstract: A condition for determining that an examination by a capsule endoscope 3 (body insertable device) completes is set in advance. When a predetermined time period has passed since the examination starts, and when received electric-field strength of receiving antennas A1 to An detected during a predetermined time period is not higher than a predetermined value, the examination is determined to have been completed. An examination completion determining unit C1 determines whether the condition is satisfied or not. According to the result of determination, a notification controller C2 makes a notifying unit 15 notify that the examination completes, and a power supply controller C3 stop power supply to a radio unit 2a. Thus, unnecessary power consumption is prevented and the completion of the examination by the body insertable device is recognized.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: August 23, 2011
    Assignees: Olympus Medical Systems Corporation, Olympus Corporation
    Inventors: Toshiaki Shigemori, Manabu Fujita, Ayako Nagase, Akira Matsui, Kazutaka Nakatsuchi
  • Patent number: 7993265
    Abstract: A capsule endoscope 2 includes a partial-image acquiring unit that has a field of vision of 360° around a central axis in a longitudinal direction (moving direction), and acquires a plurality of partial image data on inner circumferential areas 28a, 28b and the like according to a movement of the capsule endoscope 2. On the other hand, the capsule endoscope 2 is configured to acquire position related data based on which positions Z(t1) and Z(t2) at which the respective partial image data is acquired can be calculated, and enables a receiving apparatus or the like to constitute overall image data based on the partial image data and the position related data, whereby an overall image of a predetermined imaging target in a body of a subject is acquired with simple constitution while suppressing an increase in data amount.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: August 9, 2011
    Assignee: Olympus Corporation
    Inventors: Hiroshi Suzushima, Noriyuki Fujimori, Tatsuya Orihara, Masatoshi Homan, Takemitsu Honda, Kazutaka Nakatsuchi
  • Patent number: 7912434
    Abstract: To realize a receiving system that can excellently receive radio signals before and after a body insertable device, which is a radio signal source, is inserted into a subject, the receiving system has a first receiving antenna (1), a second receiving antenna (2), and a receiving apparatus (3). The first receiving antenna (1) is used when the body insertable device is outside the subject. The second receiving antenna (2) is used when the body insertable device is inserted into the subject. The receiving apparatus (3) performs a receiving processing on radio signals received through the first receiving antenna (1) or the second receiving antenna (2).
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: March 22, 2011
    Assignee: Olympus Corporation
    Inventors: Seiichiro Kimoto, Manabu Fujita, Toshiaki Shigemori, Ayako Nagase, Akira Matsui, Kazutaka Nakatsuchi
  • Patent number: 7880765
    Abstract: A receiving apparatus includes a receiving unit that receives an image signal, identification information on a transmitting apparatus, and color adjusting information that are radio transmitted from the transmitting apparatus; a lock controller that locks the color adjusting information when the receiving unit receives at least one of consecutively repeated identical color adjusting information and consecutively repeated identical identification information during a predetermined period or when the receiving unit most often receives at least one of the identical color adjusting information or the identical identification information during the predetermined period; and an image processing unit that performs image processing on the received image signal based on the locked color adjusting information.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: February 1, 2011
    Assignee: Olympus Corporation
    Inventors: Toshiaki Shigemori, Seiichiro Kimoto, Manabu Fujita, Ayako Nagase, Akira Matsui, Kazutaka Nakatsuchi
  • Patent number: 7804461
    Abstract: After a receiving antenna (A1) is inserted from a slot (B16) into a housing portion (B14) formed between cover members (B11, B12), the slot (B16) is pasted so as to secure the receiving antenna (A1). The receiving antenna (A1) is thus housed. Further, a tab (B17) which extends from one side of a pasted edge portion, holes (B20, B21) that penetrate opposing surfaces of the cover members (B11, B12), and perforated lines (B22, B23) running from the slot (B16) to the holes (B20, B21), respectively, are provided. Therefore, the receiving antenna (A1) can be easily attached to the antenna cover (B1) and to an outer surface of a subject (1), and the receiving antenna (A1) can be easily removed from the antenna cover (B1) and from the outer surface of the subject (1).
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: September 28, 2010
    Assignee: Olympus Corporation
    Inventors: Hiroaki Kubokawa, Kazutaka Nakatsuchi
  • Patent number: RE43281
    Abstract: An endoscope capable of being autoclaved in accordance with the present invention includes an insertion unit, an internal endoscope space, and contents. The insertion unit has a soft member, which is made of a soft polymeric material, as at least part of a casing thereof. The internal endoscope space includes the internal space of the insertion unit that is formed at a first sealing level at which the internal space is sealed in a watertight manner relative to an outside. The contents include at least one hermetically sealed unit composed of a plurality of airtight partition members and formed at a second sealing level higher than the first sealing level by joining the meeting portions of the airtight partition members using an airtight joining material. All or part of the airtight partition members is stowed in the internal endoscope space.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: March 27, 2012
    Inventors: Masakazu Higuma, Yasuyuki Futatsugi, Takeaki Nakamura, Yosuke Yoshimoto, Takahiro Kishi, Yasuhito Kura, Yutaka Tatsuno, Takao Yamaguchi, Susumu Aono, Ichiro Nakamura, Jun Hiroya, Hidetoshi Saito, Kazutaka Nakatsuchi