Patents by Inventor Yuji Hirai

Yuji Hirai 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: 20230191852
    Abstract: A method of manufacturing a rubber member includes forming a mask on which pattern structures are arranged at a constant pitch, arranging the mask on a substrate of a mold made of a metal or a semiconductor material and etching the substrate. The method further includes adhering unvulcanized rubber to the substrate, vulcanizing the unvulcanized rubber to form vulcanized rubber, and transferring a fine ridged/grooved structure to a surface of the vulcanized rubber. The fine ridged/grooved structure is formed on at least a part of the surface of the vulcanized rubber as the rubber member, the fine ridged/grooved structure having fine ridged/grooved portions arranged at the constant pitch. A region in which the fine ridged/grooved structure is provided is visually recognizable by a structural color different from colors of other regions.
    Type: Application
    Filed: February 22, 2023
    Publication date: June 22, 2023
    Inventors: Takahiro Okamatsu, Masatsugu Shimomura, Yuji Hirai, Yasutaka Matsuo, Toshihiko Arita
  • Patent number: 11638604
    Abstract: A treatment instrument includes a grasping piece that is openable and closable to a treatment portion, and includes an electrode member. An electrode inclination surface facing a side on which the treating portion is located is provided on an outer surface of the electrode member of the grasping piece, and the electrode inclination surface extends from an inner side to an outer side in a width direction so as to be inclined in a direction away from the treatment portion.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: May 2, 2023
    Assignee: OLYMPUS CORPORATION
    Inventors: Marina Kobayashi, Yuji Hirai, Eiji Murakami, Tadashi Kitayama, Satoshi Miyajiri, Katsushi Ide, Takahito Oshiro
  • Patent number: 11413059
    Abstract: An energy surgical instrument includes first and second grasping pieces for grasping a blood vessel. At least one of the grasping pieces is designed to apply treatment energy to a grasped blood vessel. The instrument also includes a processor designed to set a wall thickness of the blood vessel, and a grasping force adjuster designed to adjust a grasping force applied by the first and second grasping pieces. A first grasping force is applied when the wall thickness set by the processor is larger than a predetermined thickness, and a second grasping force, which is larger than the first grasping force, is applied when the wall thickness set by the processor is equal to or smaller than the predetermined thickness. A treatment method includes applying treatment energy to a blood vessel grasped by the first and second grasping pieces of the instrument to seal the blood vessel.
    Type: Grant
    Filed: August 15, 2018
    Date of Patent: August 16, 2022
    Assignee: OLYMPUS CORPORATION
    Inventors: Marina Kobayashi, Yuji Hirai, Satomi Sakao, Takeshi Onaga, Kazuhiro Morisaki, Katsushi Ide
  • Patent number: 11399887
    Abstract: An energy treatment instrument includes a pair of grasping pieces, and the grasping pieces grasp a treated target therebetween by closing relative to each other. At least one of the grasping pieces includes an energy applying portion which treats the treated target by applying treatment energy to the grasped treated target. At least one of the grasping pieces includes a hauler hauling the treated target toward an inside in a width direction of the grasping pieces, when the grasping pieces close relative to each other in a state that the treated target is disposed between the grasping pieces.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: August 2, 2022
    Assignee: OLYMPUS CORPORATION
    Inventors: Yuji Hirai, Kazuhiro Morisaki, Shunsuke Kuribara, Satomi Sakao, Satoshi Miyajiri
  • Publication number: 20210339575
    Abstract: A vehicle tire, as a rubber member, includes, on at least a part of the surface thereof, a fine ridged/grooved structure formed via transfer from a mold and having fine ridged/grooved portions arranged at a constant arrangement pitch, wherein a region in which the fine ridged/grooved structure is provided is visually recognizable by a different structural color from the colors of other regions.
    Type: Application
    Filed: July 13, 2021
    Publication date: November 4, 2021
    Inventors: Takahiro Okamatsu, Masatsugu Shimomura, Yuji Hirai, Yasutaka Matsuo, Toshihiko Arita
  • Patent number: 11000302
    Abstract: A grasping treatment instrument includes a sheath, a first grasping piece provided at a distal end of the sheath, a second grasping piece and a movable member. The second grasping piece is connected to the sheath at a first rotation axis perpendicular to a longitudinal axis of the sheath. The movable member is connected to the second grasping piece at the second rotation axis parallel to the first rotation axis, and is configured to move along the longitudinal axis. The first rotation axis is configured to move within the sheath or the second grasping piece in a plane perpendicular to the first rotation axis. The second rotation axis is configured to move within the movable member or the second grasping piece in a plane perpendicular to the second rotation axis.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: May 11, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Yuji Hirai, Takeshi Onaga
  • Patent number: 10786276
    Abstract: A medical device includes, a vibration transmitting member configured to be capable of transmitting vibration for use in a treatment; a jaw configured to move between an abutted position where the jaw abuts on the vibration transmitting member, and a spaced position where the jaw is spaced apart from the vibration transmitting member; and a cover provided in such a position that the vibration transmitting member is interposed between the cover and the jaw, and configured such that a first distal portion, which is located at a distal end of the cover, comes in contact with the vibration transmitting member, when the jaw is located in the abutted position.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: September 29, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Yuji Hirai, Yukihiko Sawada, Tsunetaka Akagane
  • Publication number: 20190336202
    Abstract: A treatment instrument includes a grasping piece that is openable and closable to a treatment portion, and includes an electrode member. An electrode inclination surface facing a side on which the treating portion is located is provided on an outer surface of the electrode member of the grasping piece, and the electrode inclination surface extends from an inner side to an outer side in a width direction so as to be inclined in a direction away from the treatment portion.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 7, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Marina KOBAYASHI, Yuji HIRAI, Eiji MURAKAMI, Tadashi KITAYAMA, Satoshi MIYAJIRI, Katsushi IDE, Takahito OSHIRO
  • Publication number: 20190202244
    Abstract: A vehicle tire, as a rubber member, includes, on at least a part of the surface thereof, a fine ridged/grooved structure formed via transfer from a mold and having fine ridged/grooved portions arranged at a constant arrangement pitch, wherein a region in which the fine ridged/grooved structure is provided is visually recognizable by a different structural color from the colors of other regions. The fine ridged/grooved structure is formed on a sidewall portion of the vehicle tire, and the region in which the fine ridged/grooved structure is provided is formed in a shape to display predetermined information.
    Type: Application
    Filed: May 2, 2017
    Publication date: July 4, 2019
    Inventors: Takahiro Okamatsu, Masatsugu Shimomura, Yuji Hirai, Yasutaka Matsuo, Toshihiko Arita
  • Publication number: 20190090893
    Abstract: A grasping treatment instrument includes a sheath, a first grasping piece provided at a distal end of the sheath, a second grasping piece and a movable member. The second grasping piece is connected to the sheath at a first rotation axis perpendicular to a longitudinal axis of the sheath. The movable member is connected to the second grasping piece at the second rotation axis parallel to the first rotation axis, and is configured to move along the longitudinal axis. The first rotation axis is configured to move within the sheath or the second grasping piece in a plane perpendicular to the first rotation axis. The second rotation axis is configured to move within the movable member or the second grasping piece in a plane perpendicular to the second rotation axis.
    Type: Application
    Filed: November 21, 2018
    Publication date: March 28, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Yuji HIRAI, Takeshi ONAGA
  • Publication number: 20190083118
    Abstract: A grasping treatment instrument includes a sheath extending along a longitudinal axis, a first grasping piece provided at a distal end portion of the sheath, a second grasping piece moving rotationally relative to the sheath, thereby opening and closing relative to the first grasping piece to grasp a living tissue between the second grasping piece and the first grasping piece, a protrusion provided on the second grasping piece and protruding in a direction intersecting with the longitudinal axis and a direction in which the second grasping piece opens and closes, and a recess that engages with the protrusion at the distal end portion of the sheath and has a recessed shape that opens in a direction intersecting with the direction to which the protrusion protrudes.
    Type: Application
    Filed: November 20, 2018
    Publication date: March 21, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Yuji HIRAI, Shunichi NAGANO
  • Publication number: 20190021757
    Abstract: An energy surgical instrument includes a first grasping piece, a second grasping piece which is allowed to grasp a blood vessel, an energy application unit provided in at least one of the first grasping piece and the second grasping piece, which applies treatment energy to the blood vessel grasped, a setting unit which sets information regarding a wall thickness of the blood vessel, and a grasping force adjustment unit which adjusts a grasping force to a first grasping force when the wall thickness set by the setting unit is larger than a predetermined thickness and adjusting the grasping force to a second grasping force, which is larger than the first grasping force, when the wall thickness set by the setting unit is equal to or smaller than the predetermined thickness.
    Type: Application
    Filed: August 15, 2018
    Publication date: January 24, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Marina Kobayashi, Yuji Hirai, Satomi Sakao, Takeshi Onaga, Kazuhiro Morisaki, Katsushi Ide
  • Publication number: 20190021784
    Abstract: An energy surgical instrument includes a first grasping piece, a second grasping piece which is allowed to grasp a blood vessel, an energy application unit provided in at least one of the first grasping piece and the second grasping piece, which applies treatment energy to the blood vessel grasped, a setting unit which sets information regarding a wall thickness of the blood vessel, and a grasping force adjustment unit which adjusts a grasping force to a first grasping force when the wall thickness set by the setting unit is larger than a predetermined thickness and adjusting the grasping force to a second grasping force, which is smaller than the first grasping force, when the wall thickness set by the setting unit is equal to or smaller than the predetermined thickness.
    Type: Application
    Filed: August 15, 2018
    Publication date: January 24, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Marina Kobayashi, Yuji Hirai, Satomi Sakao, Takeshi Onaga, Kazuhiro Morisaki, Katsushi Ide
  • Publication number: 20180303540
    Abstract: An energy treatment instrument includes a pair of grasping pieces, and the grasping pieces grasp a treated target therebetween by closing relative to each other. At least one of the grasping pieces includes an energy applying portion which treats the treated target by applying treatment energy to the grasped treated target. At least one of the grasping pieces includes a hauler hauling the treated target toward an inside in a width direction of the grasping pieces, when the grasping pieces close relative to each other in a state that the treated target is disposed between the grasping pieces.
    Type: Application
    Filed: June 25, 2018
    Publication date: October 25, 2018
    Applicant: OLYMPUS CORPORATION
    Inventors: Yuji HIRAI, Kazuhiro MORISAKI, Shunsuke KURIBARA, Satomi SAKAO, Satoshi MIYAJIRI
  • Patent number: 10098655
    Abstract: An ultrasonic treatment instrument includes a vibration transmitting member transmitting ultrasonic vibration toward a first gripper and formed as one piece, and a second gripper movable between a spaced position where the second gripper is spaced apart from the first gripper and a closed position where the second gripper is put in close to the first gripper. The ultrasonic treatment instrument includes an interlocking actuator increasing, by moving the first gripper in interlock with a movement of the second gripper to the spaced position, a spacing distance between the first gripper and the second gripper in accordance with a movement of the first gripper.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: October 16, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Satoshi Miyajiri, Kazuhiro Morisaki, Yuji Hirai, Takeshi Onaga, Katsushi Ide
  • Patent number: 10064676
    Abstract: A medical apparatus includes a first clamp portion; a pivot shaft; a second clamp portion rotatable around the pivot shaft, and movable between an opened position in which the second clamp portion is distant from the first clamp portion, and a closed position in which the second clamp portion is adjacent to the first clamp portion; and an electrode member provided on the second clamp portion, and opposed to the first clamp portion, the electrode member forming a clearance in cooperation with the first clamp portion in the closed position, the clearance in a second position distant from the pivot shaft being smaller than the clearance in a first position adjacent to the pivot shaft, to adjust holding pressure.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: September 4, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Yuji Hirai
  • Patent number: 10058347
    Abstract: A handle unit for a surgical device that operates an end effector to give various kinds of treatments, includes: a handle main body having a fixed member; a support section that is supported by the same hand of the user and is movable along a turning plane defined by moving closer to or away from the fixed member; a first coupling section that is coupled with the handle main body by moving the support section along the turning plane; a second coupling section that has an extended axis defined by the first coupling section and the support section and is configured to turn the support section in a periaxial direction orthogonal to the extended axis; and a third coupling section that is configured to turn the support section in the periaxial direction of the extended axis.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: August 28, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Yuji Hirai, Eiji Murakami
  • Patent number: 10016231
    Abstract: A medical apparatus includes a treatment device configured to be capable of treating a subject by applying energy to the subject, an optical fiber including a light emitting face for emitting light into the subject, the optical fiber being connected to the treatment device, and a shield portion that is disposed in front of the light emitting face of the optical fiber, the shield portion being configured to expose the light emitting face when the treatment device does not perform a treatment operation and to shield the light emitting face when the treatment device performs the treatment operation.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: July 10, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Makoto Igarashi, Takeshi Watanabe, Yuji Hirai, Kenichi Kimura, Satoshi Homma, Hiroshi Miyajima, Hiroyoshi Yajima
  • 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: 20180042638
    Abstract: A medical device includes, a vibration transmitting member configured to be capable of transmitting vibration for use in a treatment; a jaw configured to move between an abutted position where the jaw abuts on the vibration transmitting member, and a spaced position where the jaw is spaced apart from the vibration transmitting member; and a cover provided in such a position that the vibration transmitting member is interposed between the cover and the jaw, and configured such that a first distal portion, which is located at a distal end of the cover, comes in contact with the vibration transmitting member, when the jaw is located in the abutted position.
    Type: Application
    Filed: October 10, 2017
    Publication date: February 15, 2018
    Applicant: OLYMPUS CORPORATION
    Inventors: Yuji HIRAI, Yukihiko SAWADA, Tsunetaka AKAGANE