Patents by Inventor Kazuhiro Tanaka

Kazuhiro Tanaka 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: 20230414268
    Abstract: An electrically conductive plate of a treatment instrument includes a treating surface and a back surface facing an opposite side of the treating surface, and an electric component is arranged on the back surface of the electrically conductive plate. The electric component is electrically independent from the electrically conductive plate, and a holder supports the electrically conductive plate from the back surface side. A connector is made of a thermoplastic resin, and arranged on either side of and spaced from the electric component in a width direction intersecting with a longitudinal axis. The connector stationarily fixes each end of the electrically conductive plate in the width direction to the holder.
    Type: Application
    Filed: September 7, 2023
    Publication date: December 28, 2023
    Applicant: OLYMPUS CORPORATION
    Inventors: Yusuke TAKEI, Kazuhiro TANAKA, Tomoyuki TAKASHINO
  • Patent number: 11786288
    Abstract: An electrically conductive plate of a treatment instrument includes a treating surface and a back surface facing an opposite side of the treating surface, and an electric component is arranged on the back surface of the electrically conductive plate. The electric component is electrically independent from the electrically conductive plate, and a holder supports the electrically conductive plate from the back surface side. A connector is made of a thermoplastic resin, and arranged on either side of and spaced from the electric component in a width direction intersecting with a longitudinal axis. The connector stationarily fixes each end of the electrically conductive plate in the width direction to the holder.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: October 17, 2023
    Assignee: OLYMPUS CORPORATION
    Inventors: Yusuke Takei, Kazuhiro Tanaka, Tomoyuki Takashino
  • Patent number: 11781468
    Abstract: A thermostat is provided at a connection portion between a cooling water supply passage and a bypass passage. When the temperature of the cooling water lies in a low temperature range lower than a first reference temperature, the thermostat allows introduction of the cooling water from the cooling water discharge passage into the cooling water supply passage via the bypass passage and also prevents introduction of the cooling water from the radiator into the engine via the cooling water supply passage. When the temperature of the cooling water lies in a high temperature range equal to or higher than a second reference temperature which is higher than the first reference temperature, the thermostat allows introduction of the cooling water from the radiator into the engine via the cooling water supply passage and also prevents introduction of the cooling water from the cooling water discharge passage into the cooling water supply passage via the bypass passage.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: October 10, 2023
    Assignee: Kubota Corporation
    Inventor: Kazuhiro Tanaka
  • Patent number: 11767796
    Abstract: A spark ignition type engine enabling engine startability to be favorable is provided. The spark ignition type engine includes a main intake-air passage; a throttle valve of the main intake-air passage; a bypass intake-air passage bypassing the throttle valve; an ISC valve of the bypass intake-air passage; and an electronic control device that controls an engine speed by adjusting an opening degree of the ISC valve, in which when the engine is started, cranking is performed at a cranking opening degree at which the ISC valve is narrowed by a predetermined amount from a fully opened state by control of the electronic control device, so that an intake-air negative pressure is generated on an intake-air downstream side of the ISC valve.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: September 26, 2023
    Assignee: KUBOTA CORPORATION
    Inventors: Michisuke Iga, Kazuhiro Tanaka, Masanori Hirochi, Yoshinori Oyama
  • Patent number: 11724586
    Abstract: A work vehicle includes an engine (11); a traveling device (1, 2) capable of traveling on the ground; a power transmission device (13) that transmits driving power of the engine (11) to the traveling device (1, 2) with a work oil; a cooling device (15) for cooling the engine (11) with a cooling fluid; a storage unit (17) having a first storage space (17A) for storing the work oil and a second storage space (17B) for storing the cooling fluid.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: August 15, 2023
    Assignee: Kubota Corporation
    Inventors: Kensuke Okabe, Kohta Nakao, Kazuhiro Tanaka, Yusuke Endo, Toshifumi Yasuda
  • Patent number: 11707316
    Abstract: A treatment instrument includes a rotating body and a housing. The rotating body includes a connecting portion including: a supported portion having a cylindrical outer peripheral surface, and an engaged portion that is adjacent to the supported surface. The housing includes a supporting portion that is configured to support the supported portion of the rotating body, the supporting portion being rotatable around a predetermined rotation axis; and an engaging portion that is configured to generate a frictional force larger than a frictional force between the supporting portion and the supported portion by coming into contact with the engaged portion.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: July 25, 2023
    Assignee: OLYMPUS CORPORATION
    Inventors: Kazuhiro Tanaka, Yuki Kawaguchi, Yusuke Takei, Ojiro Kitamura, Akinori Kobayashi, Tomoyuki Takashino, Tatsuro Yamamoto
  • Publication number: 20230230741
    Abstract: The present invention accurately estimates the opening state of a solenoid valve using a feature amount based on driving current information of the solenoid valve. A solenoid valve abnormality detection device, which uses a driving current pattern associated with valve opening of a solenoid valve and detected by a current sensor to detect an abnormality of the solenoid valve, comprises: a feature amount extraction unit that determines a feature amount of a driving current pattern associated with valve opening of the solenoid valve within a predetermined detection period; a feature amount correction unit that estimates the valve temperature of the solenoid valve; and an opening state estimation unit that estimates the opening state of the solenoid valve using the feature amount value corrected by the feature amount correction unit.
    Type: Application
    Filed: March 2, 2021
    Publication date: July 20, 2023
    Applicant: HITACHI HIGH-TECH CORPORATION
    Inventors: Guangbin Zhou, Hiroshi Suzuki, Gorou Yoshida, Kazuhiro Tanaka
  • Publication number: 20230203997
    Abstract: A spark ignition type engine enabling engine startability to be favorable is provided. The spark ignition type engine includes a main intake-air passage; a throttle valve of the main intake-air passage; a bypass intake-air passage bypassing the throttle valve; an ISC valve of the bypass intake-air passage; and an electronic control device that controls an engine speed by adjusting an opening degree of the ISC valve, in which when the engine is started, cranking is performed at a cranking opening degree at which the ISC valve is narrowed by a predetermined amount from a fully opened state by control of the electronic control device, so that an intake-air negative pressure is generated on an intake-air downstream side of the ISC valve.
    Type: Application
    Filed: November 9, 2022
    Publication date: June 29, 2023
    Inventors: Michisuke IGA, Kazuhiro TANAKA, Masanori HIROCHI, Yoshinori OYAMA
  • Publication number: 20230200887
    Abstract: A treatment tool includes: an insertion tube; a distal end part that is provided at a distal end of the insertion tube; a shaft that is provided in the distal end part and that includes an outer circumferential surface; and a pair of transmitters each of which is inserted into the insertion tube and is fixed to the distal end part, the pair of transmitters being configured to transmit a drive force that causes the distal end part to flex with respect to the insertion tube, each transmitter being arranged along the outer circumferential surface with the shaft being sandwiched between the pair of transmitters and, on a distal end side with respect to the shaft, the pair of transmitters extending in a state of being separate from each other in a distance smaller than a diameter of the outer circumferential surface of the shaft.
    Type: Application
    Filed: February 17, 2023
    Publication date: June 29, 2023
    Inventors: Akira MIYAZAKI, Hiroyuki Takayama, Daisuke Yanagi, Kazuhiro Tanaka, Ojiro Kitamura, Tomoyuki Takashino
  • Publication number: 20230181205
    Abstract: A treatment tool includes: an insertion tube; a pair of jaws that are provided at a distal end of the insertion tube and that are flexible with respect to the insertion tube, the pair of jaws being configured to grasp living tissue by opening and closing each other; a pin that is provided on a rotation axis on which the jaws are caused to rotate with respect to the insertion tube; a shaft that has an outer circumferential surface and in which a hole into which the pin is inserted; a rod configured to be inserted into the insertion tube and move forward and backward along a longitudinal axis of the insertion tube; and a link mechanism that is linked to a distal end of the rod and that includes a plurality of arms linked with each other movably within a specific plane.
    Type: Application
    Filed: February 13, 2023
    Publication date: June 15, 2023
    Inventors: Akira MIYAZAKI, Kazuhiro TANAKA, Ojiro KITAMURA
  • Publication number: 20230181233
    Abstract: A treatment tool includes: a tubular insertion tube; an end effector that is provided at a distal end of the insertion tube and is bendable with respect to the insertion tube, the end effector being configured to apply treatment energy to a living tissue according to supplied power to treat the living tissue; a shaft body that is provided in the end effector and has an outer peripheral surface located on a circumference of a specific circle centered on a rotation axis when viewed from a direction along the rotation axis, the rotation axis allowing the end effector to be bent with respect to the insertion tube; and a wiring that is inserted through the insertion tube and serves as a supply path of the power, the shaft body including a passage through which the wiring is inserted.
    Type: Application
    Filed: February 10, 2023
    Publication date: June 15, 2023
    Inventors: Akira MIYAZAKI, Kazuhiro Tanaka, Ojiro Kitamura
  • Patent number: 11617613
    Abstract: A medical instrument comprises a housing and an elongated sheath configured to be attached to the housing. The elongated sheath includes opposed distal end and proximal end along a longitudinal axis. An end effector is configured to be attached to the distal end of the elongated sheath. The end effector includes a pair of grasps. A direction changer is used to change a direction of the end effector with respect to the distal end of the elongated sheath. A first drive shaft movable in the elongated sheath in ganged relation for opening and closing movement of the pair of grasps. A second drive shaft movable in the elongated sheath in ganged relation for angular movement of the end effector by the direction changer with respect to the elongated sheath. An operating member is configured to actuate the second drive shaft between a bent positions and a neutral position.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: April 4, 2023
    Assignee: OLYMPUS CORPORATION
    Inventors: Akira Miyazaki, Yuki Kawaguchi, Kazuhiro Tanaka
  • Publication number: 20230096904
    Abstract: A two-cylinder reciprocating engine includes a cylinder block; a first cylinder with a combustion chamber; a second cylinder with a combustion chamber; a crankshaft coupled to the first cylinder and the second cylinder with a crank angle of 270 degrees; a first exhaust port connected with the combustion chamber of the first cylinder; a second exhaust port connected with the combustion chamber of the second cylinder; a first header connected with the first exhaust port; a second header connected with the second exhaust port; and an exhaust converging section connected with the first header and the second header, wherein the first header, the second header, and the exhaust converging section are in the cylinder block.
    Type: Application
    Filed: May 27, 2022
    Publication date: March 30, 2023
    Inventor: Kazuhiro Tanaka
  • Patent number: 11596464
    Abstract: A medical apparatus includes a first jaw; a second jaw that opens and closes with the first jaw; a shaft to which the second jaw is pivotably attached; and a sliding member provided between the second jaw and the shaft, abutted to each of the second jaw and the shaft, and configured to be slidable with respect to at least one of the second jaw or the shaft.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: March 7, 2023
    Assignee: OLYMPUS CORPORATION
    Inventors: Yusuke Takei, Kazuhiro Tanaka, Tomoyuki Takashino
  • Publication number: 20230063899
    Abstract: A cutting machining apparatus includes a rectangular box-shaped housing as a whole, a base member fixed to the housing via a cushioning member, a workpiece holder disposed inside the housing to be apart from the housing, fixed to the base member, and holding a workpiece, and a machining unit disposed inside the housing to be apart from the housing, fixed to the base member, and machining the workpiece.
    Type: Application
    Filed: February 5, 2021
    Publication date: March 2, 2023
    Inventors: Shuhei Muraoka, Tomoya Yabunaka, Kazuhiro Tanaka
  • Publication number: 20220323135
    Abstract: A heating blade unit, a treatment tool, and a method of manufacturing a heating blade unit are disclosed. The heating blade unit includes: an electric heater, a blade, and a cover made of a thermosetting resin. The blade includes a treatment surface, an installation surface that is provided on a side opposite to the treatment surface and on which the electric heater is installed, and a support surface that is provided at a position different from a position at which the installation surface is provided. The cover integrally covers the electric heater, and one or more surfaces of the blade.
    Type: Application
    Filed: June 24, 2022
    Publication date: October 13, 2022
    Applicant: OLYMPUS CORPORATION
    Inventors: Kazuhiro TANAKA, Hiroki KAZUNO
  • Publication number: 20220298269
    Abstract: Provided is an active energy ray curable composition cured by irradiation of active energy rays. The active energy ray curable composition contains an (A) radical polymerizable compound, a (B) photopolymerization initiator, and a (C) amine compound. The (B) photopolymerization initiator includes a (B1) sulfur compound and a (B2) acyl phosphine oxide compound. The (B1) sulfur compound is at least one of a sulfone compound and a thiobenzoyl compound.
    Type: Application
    Filed: March 11, 2022
    Publication date: September 22, 2022
    Inventors: Satoshi Kuniyasu, Kazuhiro Tanaka
  • Publication number: 20220105794
    Abstract: A work vehicle includes an engine (11); a traveling device (1, 2) capable of traveling on the ground; a power transmission device (13) that transmits driving power of the engine (11) to the traveling device (1, 2) with a work oil; a cooling device (15) for cooling the engine (11) with a cooling fluid; a storage unit (17) having a first storage space (17A) for storing the work oil and a second storage space (17B) for storing the cooling fluid.
    Type: Application
    Filed: May 13, 2021
    Publication date: April 7, 2022
    Inventors: Kensuke Okabe, Kohta Nakao, Kazuhiro Tanaka, Yusuke Endo, Toshifumi Yasuda
  • Patent number: 11257749
    Abstract: A wiring substrate includes: a core layer having a first face, and a second face opposite to the first face; a through hole that penetrates the core layer; a first metal layer formed on an inner wall face of the through hole and formed on or above the first and second faces; a second metal layer that is formed on the first metal layer and fills the through hole, wherein the second metal layer has a first recess portion opposed to the through hole, and a second recess portion opposed to the first recess portion via the through hole; a third metal layer provided in the first recess portion; a fourth metal layer provided in the second recess portion; a fifth metal layer formed on the second metal layer and the third metal layer; and a sixth metal layer formed on the second metal layer and the fourth metal layer.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: February 22, 2022
    Assignee: SHINKO ELECTRIC INDUSTRIES CO., LTD.
    Inventor: Kazuhiro Tanaka
  • Publication number: 20210315602
    Abstract: A treatment tool includes: a sheath that extends along a first axis; an end effector that is arranged on the sheath, the end effector being configured to apply energy to living tissue according to power that is supplied; a first operation portion into which the sheath is inserted and that is rotatable on the first axis together with the sheath; a housing configured to support the first operation portion; a conductive wire that is laid at least in the housing and in the first operation portion, is electrically connected to the end effector, and serves as a path via which the power is supplied; and a rotation portion that is at least partially positioned in the housing, that is rotatable on the first axis together with the sheath and the first operation portion, and around which the conductive wire is wound in the housing.
    Type: Application
    Filed: June 25, 2021
    Publication date: October 14, 2021
    Applicant: OLYMPUS CORPORATION
    Inventors: Ojiro KITAMURA, Kazuhiro TANAKA