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).
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Patent number: 11534059Abstract: 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: GrantFiled: June 7, 2019Date of Patent: December 27, 2022Assignee: OLYMPUS CORPORATIONInventor: Tomokazu Iwasaki
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Patent number: 11490799Abstract: 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: GrantFiled: July 22, 2020Date of Patent: November 8, 2022Assignee: OLYMPUS CORPORATIONInventors: Tomoyuki Iizuka, Tomokazu Iwasaki, Mitsuyoshi Tezuka
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Publication number: 20220330794Abstract: 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: ApplicationFiled: April 16, 2021Publication date: October 20, 2022Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Tomokazu IWASAKI, Hideto ONISHI
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Patent number: 11419489Abstract: 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: GrantFiled: July 22, 2020Date of Patent: August 23, 2022Assignee: OLYMPUS CORPORATIONInventor: Tomokazu Iwasaki
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Patent number: 11253143Abstract: 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: GrantFiled: November 3, 2020Date of Patent: February 22, 2022Assignee: OLYMPUS CORPORATIONInventor: Tomokazu Iwasaki
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Publication number: 20210127962Abstract: 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: ApplicationFiled: November 3, 2020Publication date: May 6, 2021Applicant: OLYMPUS CORPORATIONInventor: Tomokazu IWASAKI
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Publication number: 20200359882Abstract: 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: ApplicationFiled: July 22, 2020Publication date: November 19, 2020Applicant: OLYMPUS CORPORATIONInventor: Tomokazu IWASAKI
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Publication number: 20200352426Abstract: 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: ApplicationFiled: July 23, 2020Publication date: November 12, 2020Applicant: OLYMPUS CORPORATIONInventors: Takuya TOYOOKA, Tomokazu IWASAKI
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Publication number: 20200345226Abstract: 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: ApplicationFiled: July 22, 2020Publication date: November 5, 2020Applicant: OLYMPUS CORPORATIONInventors: Tomoyuki IIZUKA, Tomokazu IWASAKI, Mitsuyoshi TEZUKA
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Patent number: 10694930Abstract: 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: GrantFiled: July 3, 2018Date of Patent: June 30, 2020Assignee: OLYMPUS CORPORATIONInventor: Tomokazu Iwasaki
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Patent number: 10588500Abstract: 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: GrantFiled: July 10, 2018Date of Patent: March 17, 2020Assignee: OLYMPUS CORPORATIONInventors: Tomokazu Iwasaki, Mitsuyoshi Tezuka, Hitoshi Hasegawa, Hisato Kogure
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Publication number: 20190282079Abstract: 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: ApplicationFiled: June 7, 2019Publication date: September 19, 2019Applicant: OLYMPUS CORPORATIONInventor: Tomokazu IWASAKI
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Publication number: 20190276682Abstract: 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: ApplicationFiled: April 30, 2019Publication date: September 12, 2019Applicants: Waseda University, Mitsubishi Chemical CorporationInventors: Takeo SUGA, Hiroyuki NISHIDE, Sho KATSUMATA, Kana TANIGUCHI, Junichi NAKAMURA, Tomokazu IWASAKI
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Patent number: 10194784Abstract: 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: GrantFiled: June 12, 2017Date of Patent: February 5, 2019Assignee: OLYMPUS CORPORATIONInventors: Hideto Onishi, Tomokazu Iwasaki, Young Chung Kim
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Patent number: 10188276Abstract: 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: GrantFiled: October 14, 2016Date of Patent: January 29, 2019Assignee: OLYMPUS CORPORATIONInventor: Tomokazu Iwasaki
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Publication number: 20180325367Abstract: 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: ApplicationFiled: July 3, 2018Publication date: November 15, 2018Applicant: OLYMPUS CORPORATIONInventor: Tomokazu IWASAKI
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Publication number: 20180317760Abstract: 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: ApplicationFiled: July 10, 2018Publication date: November 8, 2018Applicant: OLYMPUS CORPORATIONInventors: Tomokazu IWASAKI, Mitsuyoshi TEZUKA, Hitoshi HASEGAWA, Hisato KOGURE
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Publication number: 20180310815Abstract: 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: ApplicationFiled: July 5, 2018Publication date: November 1, 2018Applicant: OLYMPUS CORPORATIONInventors: Mitsuyoshi Tezuka, Hitoshi Hasegawa, Tomokazu Iwasaki, Hisato Kogure
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Patent number: 9827067Abstract: 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: GrantFiled: May 11, 2017Date of Patent: November 28, 2017Assignee: OLYMPUS CORPORATIONInventors: Tomokazu Iwasaki, Hideto Onishi, Akihisa Ogawa, Masahiko Tomita, Young Chung Kim
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Publication number: 20170273544Abstract: 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: ApplicationFiled: June 12, 2017Publication date: September 28, 2017Applicant: OLYMPUS CORPORATIONInventors: Hideto ONISHI, Tomokazu IWASAKI, Young Chung KIM