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).

  • Patent number: 10034703
    Abstract: A control device is a control device for an energy treatment tool including a first holding member and a second holding member which hold a biological tissue, and a heating element configured to generate heat corresponding to supplied power, thereby heating a holding surface. The control device includes a temperature acquiring section that acquires a temperature of the heating element; and a surface temperature estimating section that estimates, as a surface temperature, a temperature of at least a part of a surface of the first holding member which is different from a portion facing the second holding member, based on a change of the temperature of the heating element after supply of the power is stopped.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: July 31, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Tomoyuki Takashino, Yusuke Takei, Kazuhiro Tanaka
  • Publication number: 20180164484
    Abstract: A planar illumination device according to an embodiment includes a light guide plate, a light source, a substrate, and a fixing member. The light guide plate causes light incident on a side surface to exit from a light exit surface. The light source is arranged on a side of the side surface of the light guide plate and has a light emitting surface to emit light toward the side surface. The light source is mounted on the substrate by bonding a bonding surface of the light source thereto by a solder. The fixing member is cured at temperature lower than a melting point of the solder and fixes the light source to the substrate while maintaining a position and a posture of the light source.
    Type: Application
    Filed: December 1, 2017
    Publication date: June 14, 2018
    Inventors: Kazuhiro TANAKA, Tomohisa SHIMODE, Takashi EDAMITSU
  • Patent number: 9949781
    Abstract: A grasping treatment unit includes a first jaw, and a second jaw openable and closable relative to the first jaw. In the first jaw, a heating wire continues without branching from a first extending end to a second extending end, and heat is generated over an entire length from the first extending end to the second extending end when the electric current flows through the heating wire. In a heating portion, a calorific value per unit area is higher in a distal portion than in a proximal portion in the first jaw when the heat is generated from the heating wire. On a treatment surface of the first jaw, an amount of heat transfer from the heating portion is greater in the distal portion than in the proximal portion.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: April 24, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Tomoyuki Takashino, Yusuke Takei, Kazuhiro Tanaka
  • Publication number: 20180066986
    Abstract: A signal detected by a photomultiplier tube is pre-amplified and converted into a digital signal. A time average value of signal components, each of which has a voltage lower than a predetermined base threshold value, is calculated as a base voltage. A signal that has been subjected to base correction processing is subjected to threshold value processing and to base correction processing in a non-incident state in which light is not incident on the photomultiplier tube. An output signal thereof is subjected to dark current calculation processing; and a light emission signal amount is calculated by subtracting, from the signal component of the detection light obtained by the threshold value processing, a time average value of the signal components of the dark current. As the result, discriminating the dark current pulse from floor noises enhances the accuracy of the base voltage, and thus the accuracy of light detection.
    Type: Application
    Filed: March 16, 2016
    Publication date: March 8, 2018
    Inventors: Yutaka KASAI, Fujio ONISHI, Osamu TASAKI, Hidetsugu TANOUE, Kazuhiro TANAKA
  • Publication number: 20180055372
    Abstract: An image processing apparatus including: an image acquisition device for observing a living body; a blood vessel recognition device that irradiates the living body with an exploration laser beam and that recognizes a blood vessel; an arithmetic operation unit that calculates a first laser spot position on a first frame acquired by the image acquisition device when the blood vessel is recognized and that adds a mark corresponding to the first laser spot to a position on a second frame corresponding to the first frame, the second frame being acquired at a time different from the time of the first frame; and a display unit for displaying, on an image acquired by the image acquisition device, a plurality of the marks added by the arithmetic operation unit as a result of the blood vessel being recognized at a plurality of different times.
    Type: Application
    Filed: October 20, 2017
    Publication date: March 1, 2018
    Applicant: OLYMPUS CORPORATION
    Inventors: Takeshi WATANABE, Makoto IGARASHI, Mitsuru NAMIKI, Hiroyoshi YAJIMA, Yuji HIRAI, Satoshi HONDA, Kazuhiro TANAKA, Yusuke TAKEI
  • Publication number: 20180036023
    Abstract: A medical instrument includes: a jaw which is provided with a grasping section; and a blade which is movable close to and away from the grasping section and which extends from a distal-end portion thereof to a proximal-end portion thereof, the blade having a top portion including a ridge opposed to the grasping section, and the ridge of the top portion in the proximal-end portion being sharper than the ridge of the top portion in the distal-end portion.
    Type: Application
    Filed: October 6, 2017
    Publication date: February 8, 2018
    Applicant: OLYMPUS CORPORATION
    Inventors: Yusuke TAKEI, Kazuhiro TANAKA, Tomoyuki TAKASHINO
  • Patent number: 9879747
    Abstract: A shock absorber includes a valve disc defining two chambers, a flow passage formed in the valve disc, the flow passage allowing communication between the two chambers, a window formed in the valve disc, the window being connected to the flow passage, a valve seat formed on the valve disc, the valve seat surrounding the outer periphery of the window; and a plurality of leaf valves formed in the shape of annular plates, the plurality of leaf valves being stacked on the valve disc. The first leaf valve stacked on the valve disc is provided such that an outer peripheral part is seatable on and separable from the valve seat, and includes a rib recessed on a valve disc side and projecting on an opposite valve disc side at a position facing the valve seat.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: January 30, 2018
    Assignee: KYB Corporation
    Inventor: Kazuhiro Tanaka
  • Publication number: 20180001857
    Abstract: Disclosed herein is a structure for mounting an occupant protection system in a vehicle. The structure includes an electric power steering device (1) and a knee protection air bag assembly (51). The device (1) includes a steering column (18). The assembly (51) includes a bag (53) configured to expand to protect knees (9a) of an occupant (9) seated on a driver's seat (8) of the vehicle. The steering column (18) includes a drive member (26) of the device (1). The assembly (51) is located below the drive member (26).
    Type: Application
    Filed: May 25, 2016
    Publication date: January 4, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventor: Kazuhiro TANAKA
  • Patent number: 9827034
    Abstract: A treatment device includes: a treatment portion including an abutment surface which is abutted on the living body tissue, and a back surface opposed to the abutment surface, the treatment portion being capable of applying energy to the living body tissue via the abutment surface, and heat being transferred toward the back surface in accordance with the application of the energy; a cover covering the back surface of the treatment portion; and an adjuster disposed between the treatment portion and the cover, and configured to vary a distance between the treatment portion and the cover, and to adjust an air layer region between the treatment portion and the cover.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: November 28, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Tomoyuki Takashino, Yusuke Takei, Kazuhiro Tanaka
  • Patent number: 9778971
    Abstract: A slave device is equipped with: a parameter setting portion for setting different values according to the content of commands sent from a master device, as parameter values for detecting anomalies; and an anomaly detecting portion for detecting anomalies by comparing the time corresponding to a parameter value that has been set by the parameter setting portion and the measured time of a process carried out in response to a command.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: October 3, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Satoshi Michihata, Kiyoyasu Maruyama, Satoko Miki, Tomonori Fukuta, Kazuhiro Tanaka
  • Publication number: 20170252087
    Abstract: An energy output section outputs first electric energy so that a high-frequency current flows between electrodes through a treated target, and outputs second electric energy so that heat occurs in an end effector. A controller outputs the first electric energy at the same time as the second electric energy in at least a part of a period during which the heat is continuously denaturing the treated target from an output start of the second electric energy. The controller makes, based on judging that the treated target entered a predetermined state, an electric power of the first electric energy increased.
    Type: Application
    Filed: May 24, 2017
    Publication date: September 7, 2017
    Applicant: OLYMPUS CORPORATION
    Inventors: Tomoyuki TAKASHINO, Yusuke TAKEI, Kazuhiro TANAKA
  • Publication number: 20170245923
    Abstract: A treatment instrument includes: a first holding surface including a first high frequency electrode portion; a second holding surface configured to hold living tissue cooperatively with the first holding surface and including a second high frequency electrode portion; a blade configured to apply pressure to the living tissue held between the first and second holding surfaces by a projected surface; and a heater which is capable of heating the first holding surface to a second temperature higher than the first temperature and sufficient to incise the living tissue held between the first and second holding surfaces by the blade, upon receipt of energy supplied at the same time as or after energy supply to the first and second high frequency electrode portions.
    Type: Application
    Filed: May 17, 2017
    Publication date: August 31, 2017
    Applicant: OLYMPUS CORPORATION
    Inventors: Tomoyuki TAKASHINO, Yusuke TAKEI, Kazuhiro TANAKA, Kazue TANAKA
  • Publication number: 20170224406
    Abstract: In a blade of a grasping treatment unit, a top sharpening toward a jaw forms a ridge line along a longitudinal direction of the blade, and in the jaw, a grasping surface opposed to the top extends. A proximal side counter portion, on which the top can abut while the blade and the jaw are closed relative to each other, is provided in a region of the grasping surface located on a proximal side with respect to a distal portion, and a distal side counter portion, which does not contact the top while the top abuts on the proximal side counter portion, is provided in the distal portion of the grasping surface.
    Type: Application
    Filed: April 25, 2017
    Publication date: August 10, 2017
    Applicant: OLYMPUS CORPORATION
    Inventors: Yusuke TAKEI, Kazuhiro TANAKA, Tomoyuki TAKASHINO
  • Publication number: 20170224405
    Abstract: In a grasping treatment unit in which a first jaw is openable and closable relative to a second jaw, a frame member is provided in the first jaw. The frame member includes a plate-shaped base portion forming a grasping surface side end face in the frame member, and a column extension extending from the base portion toward a back surface in the frame member and having one end continuous with the base portion. The column extension defines a space in which the frame member is a defining surface between the base portion and the back surface of the first jaw.
    Type: Application
    Filed: April 21, 2017
    Publication date: August 10, 2017
    Applicant: OLYMPUS CORPORATION
    Inventors: Tomoyuki TAKASHINO, Yusuke TAKEI, Kazuhiro TANAKA
  • Publication number: 20170172643
    Abstract: A grasping treatment unit includes a first jaw, and a second jaw openable and closable relative to the first jaw. In the first jaw, a heating wire continues without branching from a first extending end to a second extending end, and generates heat over an entire length from the first extending end to the second extending end when an electric current flows therethrough. A heating portion is lower in calorific value per unit area in a distal portion than in a proximal portion in the first jaw in a state where the heat is generated from the heating wire.
    Type: Application
    Filed: March 1, 2017
    Publication date: June 22, 2017
    Applicant: OLYMPUS CORPORATION
    Inventors: Tomoyuki TAKASHINO, Yusuke TAKEI, Kazuhiro TANAKA
  • Publication number: 20170128121
    Abstract: A treatment instrument includes a treatment body that includes a treatment surface provided in the first clamp surface, the treatment surface protruding toward the second clamp surface in response to the supply of heat energy and increasing pressure on the living tissue to treat the living tissue in cooperation with the action of the heat energy.
    Type: Application
    Filed: January 19, 2017
    Publication date: May 11, 2017
    Applicant: OLYMPUS CORPORATION
    Inventors: Tomoyuki TAKASHINO, Hiroaki ICHIKAWA, Yusuke TAKEI, Kazuhiro TANAKA
  • Publication number: 20170065325
    Abstract: A medical device that includes a support member, a heat insulator provided on at least a portion of a first surface of the support member, an energy output member configured to output energy, the energy output member provided on at least a portion of a first surface of the heat insulator, the output energy configured to treat biological tissue and a heat conductor provided on at least a portion of the first surface of the support member and contacting a second surface of the heat insulator, the second surface of the heat insulator opposite the first surface of the heat insulator, wherein a portion of the support member is located proximal than the energy output, and the energy output member is configured to transfer heat to the heat insulator, and wherein the heat conductor is configured to conduct the heat from the heat insulator to the support member.
    Type: Application
    Filed: September 9, 2016
    Publication date: March 9, 2017
    Applicant: OLYMPUS CORPORATION
    Inventors: Yusuke Takei, Tomoyuki Takashino, Kazuhiro Tanaka
  • Publication number: 20170042602
    Abstract: A grasping surface opposed to a second jaw is provided on an outer surface in a first jaw of the grasping treatment unit, and a heat applying portion applying heat to a treated target is provided in a grasping-surface-side part in the first jaw. The heat applying portion includes a projection portion in which the grasping surface projects toward the second jaw, and the projection portion includes a first thermal conduction portion, and a second thermal conduction portion with a thermal conductivity which is different from that of the first thermal conduction portion. The second thermal conduction portion is continuous with the first thermal conduction portion in a longitudinal direction of the first jaw.
    Type: Application
    Filed: October 31, 2016
    Publication date: February 16, 2017
    Applicant: OLYMPUS CORPORATION
    Inventors: Tomoyuki TAKASHINO, Yusuke TAKEI, Kazuhiro TANAKA
  • Publication number: 20170014175
    Abstract: A grasping treatment unit includes a first jaw, and a second jaw openable and closable relative to the first jaw. In the first jaw, a heating wire continues without branching from a first extending end to a second extending end, and heat is generated over an entire length from the first extending end to the second extending end when the electric current flows through the heating wire. In a heating portion, a calorific value per unit area is higher in a distal portion than in a proximal portion in the first jaw when the heat is generated from the heating wire. On a treatment surface of the first jaw, an amount of heat transfer from the heating portion is greater in the distal portion than in the proximal portion.
    Type: Application
    Filed: September 28, 2016
    Publication date: January 19, 2017
    Applicant: OLYMPUS CORPORATION
    Inventors: Tomoyuki TAKASHINO, Yusuke TAKEI, Kazuhiro TANAKA
  • Publication number: 20170000548
    Abstract: A control device is a control device for an energy treatment tool including a first holding member and a second holding member which hold a biological tissue, and a heating element configured to generate heat corresponding to supplied power, thereby heating a holding surface. The control device includes a temperature acquiring section that acquires a temperature of the heating element; and a surface temperature estimating section that estimates, as a surface temperature, a temperature of at least a part of a surface of the first holding member which is different from a portion facing the second holding member, based on a change of the temperature of the heating element after supply of the power is stopped.
    Type: Application
    Filed: September 14, 2016
    Publication date: January 5, 2017
    Applicant: OLYMPUS CORPORATION
    Inventors: Tomoyuki TAKASHINO, Yusuke TAKEI, Kazuhiro TANAKA