Patents by Inventor Tomokazu Iwasaki

Tomokazu Iwasaki 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: 11534059
    Abstract: An endoscope connection tube includes a fluid feeding pipeline that has a first end portion connected to a pipe sleeve of an endoscope, and a second end portion connected to a fluid supply source; a seal portion that is provided in the first end portion of the fluid feeding pipeline, includes a close contact surface configured to closely contact the pipe sleeve to surround an opening portion of the pipe sleeve, and is configured to connect an inside of the fluid feeding pipeline and an inside of the opening portion when the close contact surface closely contacts the pipe sleeve; and a detection pipeline that has a first end portion opened in the close contact surface, and is configured to be closed by the pipe sleeve when the close contact surface is in close contact with the pipe sleeve.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: December 27, 2022
    Assignee: OLYMPUS CORPORATION
    Inventor: Tomokazu Iwasaki
  • Patent number: 11490799
    Abstract: A cleaning tool for insertion device includes a first fluid supply conduit, a second fluid supply conduit, a first cap component, and a second cap component, wherein a first discharge port and a third discharge port are disposed at positions where a discharging direction of fluid discharged from the first discharge port and a discharging direction of fluid discharged from the third discharge port are parallel or coaxial to each other in a vertical direction of a distal end portion of an insertion device, and a second discharge port and a fourth discharge port are disposed at positions where a discharging direction of fluid discharged from the second discharge port and a discharging direction of fluid discharged from the fourth discharge port are parallel or coaxial to each other in a lateral direction of the distal end portion of the insertion device.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: November 8, 2022
    Assignee: OLYMPUS CORPORATION
    Inventors: Tomoyuki Iizuka, Tomokazu Iwasaki, Mitsuyoshi Tezuka
  • Publication number: 20220330794
    Abstract: An endoscope reprocessor includes: a pump; a port; a tube connected to the port; a connector disposed in the tube and connected to a pipe sleeve of a treatment instrument channel, which is a pipe of an endoscope, and configured to allow a fluid to be leaked from a connection region of the connector to the pipe sleeve to an outer circumferential surface of the pipe sleeve; a valve disposed in a flow path; a pressure sensor configured to measure a pressure of the fluid; and a processor configured to repeatedly control the valve such that the valve is closed when the pressure exceeds a first pressure and the valve is opened when the pressure is lower than a second pressure, and determine a feeding state of the fluid based on a time period until an opening/closing number of the valve reaches a predetermined number more than one.
    Type: Application
    Filed: April 16, 2021
    Publication date: October 20, 2022
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Tomokazu IWASAKI, Hideto ONISHI
  • Patent number: 11419489
    Abstract: A cleaning tool for insertion instrument includes: a cleaning cap configured to be attachable to and detachable from a distal end component portion provided on a distal end side of an insertion portion in an endoscope and covered by a tubular cover when the endoscope is used, attachment and detachment of the cleaning cap to and from the distal end component portion being performed in a state where the cover is removed from the distal end component portion; and a cap-side engaging portion provided on the cleaning cap and configured to be engaged with a distal end component portion-side engaging portion provided on an outer peripheral surface, at least a part of which is covered by the cover, of the distal end component portion.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: August 23, 2022
    Assignee: OLYMPUS CORPORATION
    Inventor: Tomokazu Iwasaki
  • Patent number: 11253143
    Abstract: An endoscope reprocessor includes: a housing unit that houses a medicinal solution bottle such that a sealing portion is located on a top surface; a first guide that guides the housing unit such that the housing unit is capable of advancing and retreating between a first point and a second point; a movable unit that moves in cooperation with advancing of the housing unit; an unsealing member provided in the movable unit and arranged at a position higher than the sealing portion of the medicinal solution bottle housed in the housing unit at the first point, the unsealing member having a shape protruding toward the top surface at a predetermined length to pierce the sealing portion when the medicinal solution bottle reaches the second point by descending as the movable unit advances; and a second guide that guides an advancing direction of the movable unit.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: February 22, 2022
    Assignee: OLYMPUS CORPORATION
    Inventor: Tomokazu Iwasaki
  • Publication number: 20210127962
    Abstract: An endoscope reprocessor includes: a housing unit that houses a medicinal solution bottle such that a sealing portion is located on a top surface; a first guide that guides the housing unit such that the housing unit is capable of advancing and retreating between a first point and a second point; a movable unit that moves in cooperation with advancing of the housing unit; an unsealing member provided in the movable unit and arranged at a position higher than the sealing portion of the medicinal solution bottle housed in the housing unit at the first point, the unsealing member having a shape protruding toward the top surface at a predetermined length to pierce the sealing portion when the medicinal solution bottle reaches the second point by descending as the movable unit advances; and a second guide that guides an advancing direction of the movable unit.
    Type: Application
    Filed: November 3, 2020
    Publication date: May 6, 2021
    Applicant: OLYMPUS CORPORATION
    Inventor: Tomokazu IWASAKI
  • Publication number: 20200359882
    Abstract: A cleaning tool for insertion instrument includes: a cleaning cap configured to be attachable to and detachable from a distal end component portion provided on a distal end side of an insertion portion in an endoscope and covered by a tubular cover when the endoscope is used, attachment and detachment of the cleaning cap to and from the distal end component portion being performed in a state where the cover is removed from the distal end component portion; and a cap-side engaging portion provided on the cleaning cap and configured to be engaged with a distal end component portion-side engaging portion provided on an outer peripheral surface, at least a part of which is covered by the cover, of the distal end component portion.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 19, 2020
    Applicant: OLYMPUS CORPORATION
    Inventor: Tomokazu IWASAKI
  • Publication number: 20200352426
    Abstract: A cleaning tool for endoscope that cleans and disinfects a distal end constituent member provided in a distal end portion in an insertion section in an endoscope includes two components, and is configured to cover an entire periphery of the distal end constituent member by combining the two components, in which the two components are respectively provided with hinges configured to make the two components openable and closable by connecting the two components to each other, the hinge being configured to be separated from each other when an opening angle between the two components exceeds a predetermined angle.
    Type: Application
    Filed: July 23, 2020
    Publication date: November 12, 2020
    Applicant: OLYMPUS CORPORATION
    Inventors: Takuya TOYOOKA, Tomokazu IWASAKI
  • Publication number: 20200345226
    Abstract: A cleaning tool for insertion device includes a first fluid supply conduit, a second fluid supply conduit, a first cap component, and a second cap component, wherein a first discharge port and a third discharge port are disposed at positions where a discharging direction of fluid discharged from the first discharge port and a discharging direction of fluid discharged from the third discharge port are parallel or coaxial to each other in a vertical direction of a distal end portion of an insertion device, and a second discharge port and a fourth discharge port are disposed at positions where a discharging direction of fluid discharged from the second discharge port and a discharging direction of fluid discharged from the fourth discharge port are parallel or coaxial to each other in a lateral direction of the distal end portion of the insertion device.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Applicant: OLYMPUS CORPORATION
    Inventors: Tomoyuki IIZUKA, Tomokazu IWASAKI, Mitsuyoshi TEZUKA
  • Patent number: 10694930
    Abstract: An endoscope reprocessor includes: a concentration measurement chamber; a liquid concentrate supply unit; a diluent supply unit; a holding unit configured to hold a concentration sensor; a memory; and a processor configured to produce information on a temporary standard curve based on a first point at which a first concentration is associated with a sensor output value at measurement of concentration of liquid concentrate and a second point at which a second concentration is associated with a sensor output value at measurement of concentration of a practical use solution after dilution, calculate a deviation degree between a standard curve and the temporary standard curve, and determine whether the temporary standard curve is valid from the deviation degree.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: June 30, 2020
    Assignee: OLYMPUS CORPORATION
    Inventor: Tomokazu Iwasaki
  • Patent number: 10588500
    Abstract: An endoscope reprocessing tool includes: a connection portion configured to be connected with a fluid outlet provided on a bottom face of a reprocessing basin of an endoscope reprocessor; a direction changing portion configured to change a flow direction of fluid discharged from the fluid outlet from a direction against a gravity direction to a direction crossing the gravity direction; a discharge portion configured to discharge the fluid direction-changed by the direction changing portion in the direction crossing the gravity direction; and a positioning portion configured to position a distal end portion of an endoscope so that the discharge portion and a recess portion provided on the distal end portion face each other.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: March 17, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Tomokazu Iwasaki, Mitsuyoshi Tezuka, Hitoshi Hasegawa, Hisato Kogure
  • Publication number: 20190282079
    Abstract: An endoscope connection tube includes a fluid feeding pipeline that has a first end portion connected to a pipe sleeve of an endoscope, and a second end portion connected to a fluid supply source; a seal portion that is provided in the first end portion of the fluid feeding pipeline, includes a close contact surface configured to closely contact the pipe sleeve to surround an opening portion of the pipe sleeve, and is configured to connect an inside of the fluid feeding pipeline and an inside of the opening portion when the close contact surface closely contacts the pipe sleeve; and a detection pipeline that has a first end portion opened in the close contact surface, and is configured to be closed by the pipe sleeve when the close contact surface is in close contact with the pipe sleeve.
    Type: Application
    Filed: June 7, 2019
    Publication date: September 19, 2019
    Applicant: OLYMPUS CORPORATION
    Inventor: Tomokazu IWASAKI
  • Publication number: 20190276682
    Abstract: Provided are a polymer, a resin composition, and an antifouling coating material composition which are capable of forming a coating film having both of water resistance and antifouling properties resulting from superhydrophilicity; a method for producing the polymer; a method for forming a structure for stabilizing a carbamate on a surface of a coating film using the polymer; and a method for regenerating a structure for stabilizing a carbamate on a surface of a coating film using the polymer. The polymer having a structure which reacts with CO2 in the presence of water and stabilizes a formed carbamate, in which Expression (1) is satisfied.
    Type: Application
    Filed: April 30, 2019
    Publication date: September 12, 2019
    Applicants: Waseda University, Mitsubishi Chemical Corporation
    Inventors: Takeo SUGA, Hiroyuki NISHIDE, Sho KATSUMATA, Kana TANIGUCHI, Junichi NAKAMURA, Tomokazu IWASAKI
  • Patent number: 10194784
    Abstract: A linear member delivery device for the endoscope includes: a nozzle including an inlet, an outlet, and an insertion path; a fitting portion fitted to an endoscope; a holding portion configured to hold a linear member; and a switching portion configured to connect the fitting portion and the nozzle such that a crossing angle of an opening of the endoscope and a center axis of the nozzle can be switched to a plurality of angles in a state that the fitting portion is fitted to the endoscope.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: February 5, 2019
    Assignee: OLYMPUS CORPORATION
    Inventors: Hideto Onishi, Tomokazu Iwasaki, Young Chung Kim
  • Patent number: 10188276
    Abstract: A separator unit is a cleaning auxiliary tool to be inserted into an air/water feeding cylinder. The separator unit includes a partition plate for partitioning an air feeding conduit side and a water feeding conduit side, and two elastic members in an air/water feeding cylinder. The two elastic members are arranged at an outer circumferential side of the partition plate. When an internal pressure on the air feeding conduit side corresponds to an internal pressure on the water feeding conduit side, the elastic members are spaced apart from an inner wall of the air/water feeding cylinder by a predetermined distance, and when one of the internal pressures on the air feeding conduit and the water feeding conduit becomes higher than the other, one of the elastic members is deformed by receiving the higher internal pressure and comes in close contact with the inner wall of the air/water feeding cylinder.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: January 29, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Tomokazu Iwasaki
  • Publication number: 20180325367
    Abstract: An endoscope reprocessor includes: a concentration measurement chamber; a liquid concentrate supply unit; a diluent supply unit; a holding unit configured to hold a concentration sensor; a memory; and a processor configured to produce information on a temporary standard curve based on a first point at which a first concentration is associated with a sensor output value at measurement of concentration of liquid concentrate and a second point at which a second concentration is associated with a sensor output value at measurement of concentration of a practical use solution after dilution, calculate a deviation degree between a standard curve and the temporary standard curve, and determine whether the temporary standard curve is valid from the deviation degree.
    Type: Application
    Filed: July 3, 2018
    Publication date: November 15, 2018
    Applicant: OLYMPUS CORPORATION
    Inventor: Tomokazu IWASAKI
  • Publication number: 20180317760
    Abstract: An endoscope reprocessing tool includes: a connection portion configured to be connected with a fluid outlet provided on a bottom face of a reprocessing basin of an endoscope reprocessor; a direction changing portion configured to change a flow direction of fluid discharged from the fluid outlet from a direction against a gravity direction to a direction crossing the gravity direction; a discharge portion configured to discharge the fluid direction-changed by the direction changing portion in the direction crossing the gravity direction; and a positioning portion configured to position a distal end portion of an endoscope so that the discharge portion and a recess portion provided on the distal end portion face each other.
    Type: Application
    Filed: July 10, 2018
    Publication date: November 8, 2018
    Applicant: OLYMPUS CORPORATION
    Inventors: Tomokazu IWASAKI, Mitsuyoshi TEZUKA, Hitoshi HASEGAWA, Hisato KOGURE
  • Publication number: 20180310815
    Abstract: An endoscope reprocessing tool includes a connection portion connected to a fluid supply source, a first fluid outlet configured to lead out a fluid, one or a plurality of stands configured to place a distal end portion of an endoscope provided with a guide member configured to guide a treatment instrument to a concave portion, a first opening portion and a second opening portion configured to allow the distal end portion to cross, and a positioning portion configured to hit a proximal end side wall of the concave portion and position the distal end portion when the distal end portion is placed on the stands such that a first opening portion side is on a proximal end and a second opening portion side is on a distal end.
    Type: Application
    Filed: July 5, 2018
    Publication date: November 1, 2018
    Applicant: OLYMPUS CORPORATION
    Inventors: Mitsuyoshi Tezuka, Hitoshi Hasegawa, Tomokazu Iwasaki, Hisato Kogure
  • Patent number: 9827067
    Abstract: A linear member transfer apparatus includes: a linear member housing portion having a bottomed cylindrical shape and including: a bottom portion; an opening; a side wall; a restriction portion that is a diaphragm disposed on a position at a predetermined distance from the bottom portion and that has an inner diameter smaller than an inner diameter of the bottom portion; a first chamber configured to house a linear member in a wound state; and a second chamber configured to house the linear member in an extended state; a transfer portion configured to transfer the linear member; and a guide.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: November 28, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Tomokazu Iwasaki, Hideto Onishi, Akihisa Ogawa, Masahiko Tomita, Young Chung Kim
  • Publication number: 20170273544
    Abstract: A linear member delivery device for the endoscope includes: a nozzle including an inlet, an outlet, and an insertion path; a fitting portion fitted to an endoscope; a holding portion configured to hold a linear member; and a switching portion configured to connect the fitting portion and the nozzle such that a crossing angle of an opening of the endoscope and a center axis of the nozzle can be switched to a plurality of angles in a state that the fitting portion is fitted to the endoscope.
    Type: Application
    Filed: June 12, 2017
    Publication date: September 28, 2017
    Applicant: OLYMPUS CORPORATION
    Inventors: Hideto ONISHI, Tomokazu IWASAKI, Young Chung KIM