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).
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Publication number: 20180042638Abstract: 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: ApplicationFiled: October 10, 2017Publication date: February 15, 2018Applicant: OLYMPUS CORPORATIONInventors: Yuji HIRAI, Yukihiko SAWADA, Tsunetaka AKAGANE
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Patent number: 9833280Abstract: A jaw of a grasping treatment device includes a non-contact portion having a space between it and a distal treatment section in a state where an abutment portion abuts on the distal treatment section, and the non-contact portion includes a wall surface portion inclined so that it is extended toward a distal treatment section side as it is extended away from the abutment portion. A movement regulating portion is provided in a region of the non contact portion located closer to the abutment portion than a continuous surface which forms an edge of the non-contact portion. The movement regulating portion located in the first wall surface portion regulates a movement of a grasp object along the jaw axis direction.Type: GrantFiled: May 22, 2015Date of Patent: December 5, 2017Assignee: OLYMPUS CORPORATIONInventors: Yuji Hirai, Eiji Murakami
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Publication number: 20170265930Abstract: 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: ApplicationFiled: June 6, 2017Publication date: September 21, 2017Applicant: OLYMPUS CORPORATIONInventor: Yuji HIRAI
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Publication number: 20170231689Abstract: 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: ApplicationFiled: May 3, 2017Publication date: August 17, 2017Applicant: OLYMPUS CORPORATIONInventors: Makoto IGARASHI, Takeshi WATANABE, Yuji HIRAI, Kenichi KIMURA, Satoshi HOMMA, Hiroshi MIYAJIMA, Hiroyoshi YAJIMA
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Publication number: 20170231553Abstract: A medical apparatus includes a laser light source for blood vessel sensing configured to irradiate illumination light for detecting a blood vessel, a photodetector configured to detect return light of the illumination light, an optical-characteristic processing circuit configured to calculate, based on a detection result of the return light, at least one of information concerning scattering of blood cells in the blood vessel and information concerning absorption by blood, a blood-vessel-characteristic determination circuit configured to determine a characteristic of the blood vessel based on an optical characteristic calculation result, and a laser light source for guide configured to irradiate, based on the determined characteristic of the blood vessel, notification light on an irradiation near region including an irradiation region.Type: ApplicationFiled: May 4, 2017Publication date: August 17, 2017Applicant: OLYMPUS CORPORATIONInventors: Makoto IGARASHI, Takeshi WATANABE, Yuji HIRAI, Kenichi KIMURA, Satoshi HOMMA, Hiroshi MIYAJIMA
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Publication number: 20170215913Abstract: 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: ApplicationFiled: April 17, 2017Publication date: August 3, 2017Applicant: OLYMPUS CORPORATIONInventors: Satoshi MIYAJIRI, Kazuhiro MORISAKI, Yuji HIRAI, Takeshi ONAGA, Katsushi IDE
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Publication number: 20160375273Abstract: A control device having: one or more processors configured to: receive a first signal indicating one of a plurality of inputs of a first type received by a first input device; receive a second signal indicating one of a plurality of inputs of a second type received by a second input device; select a selected mode from one or more modes of a respective one or more treatment devices based on a combination of the first signal and the second signal; and output a control signal for controlling the one or more treatment devices in accordance with the selected mode.Type: ApplicationFiled: September 8, 2016Publication date: December 29, 2016Applicant: OLYMPUS CORPORATIONInventors: Yuji HIRAI, Tadashi KITAYAMA
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Patent number: 9492688Abstract: In a treatment instrument, a load force center of a load force, which is a sum of gravity acting on the treatment instrument and an external force caused by a connected cable, is positioned between two support members of a handle section, and a location of introduction of the cable is disposed in a manner to extend therebetween. In the treatment instrument, an ultrasonic vibration element unit is attached and rotatably coupled to a handle unit, a power receiving section or a power supply section at the coupling constitutes a rotary electrode structure by a cylindrical electrode and a terminal electrode, and power from an outside is received and transmitted between the handle unit and the ultrasonic vibration element unit.Type: GrantFiled: August 27, 2014Date of Patent: November 15, 2016Assignee: OLYMPUS CORPORATIONInventors: Hideo Sanai, Yuji Hirai
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Publication number: 20150335347Abstract: 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: ApplicationFiled: June 3, 2015Publication date: November 26, 2015Inventors: Yuji HIRAI, Eiji MURAKAMI
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Publication number: 20150297289Abstract: A jaw of a grasping treatment device includes a non-contact portion having a space between it and a distal treatment section in a state where an abutment portion abuts on the distal treatment section, and the non-contact portion includes a wall surface portion inclined so that it is extended toward a distal treatment section side as it is extended away from the abutment portion. A movement regulating portion is provided in a region of the non contact portion located closer to the abutment portion than a continuous surface which forms an edge of the non-contact portion. The movement regulating portion located in the first wall surface portion regulates a movement of a grasp object along the jaw axis direction.Type: ApplicationFiled: May 22, 2015Publication date: October 22, 2015Applicant: OLYMPUS CORPORATIONInventors: Yuji HIRAI, Eiji MURAKAMI
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Publication number: 20150051516Abstract: In a treatment instrument, a load force center of a load force, which is a sum of gravity acting on the treatment instrument and an external force caused by a connected cable, is positioned between two support members of a handle section, and a location of introduction of the cable is disposed in a manner to extend therebetween. In the treatment instrument, an ultrasonic vibration element unit is attached and rotatably coupled to a handle unit, a power receiving section or a power supply section at the coupling constitutes a rotary electrode structure by a cylindrical electrode and a terminal electrode, and power from an outside is received and transmitted between the handle unit and the ultrasonic vibration element unit.Type: ApplicationFiled: August 27, 2014Publication date: February 19, 2015Inventors: Hideo SANAI, Yuji HIRAI
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Publication number: 20140167561Abstract: An ultrasonic vibration apparatus includes a vibrator, wherein the vibrator includes at least two vibration elements to generate ultrasonic vibration when a driving voltage is applied to the vibration elements, at least three electrode portions wherein the vibration elements and the electrode portions is alternately arranged side by side in a vibrating direction, at least the three electrode portions includes at least two first electrode portions and at least one second electrode portion alternately arranged in the vibrating direction, the vibrator integrally vibrates ultrasonically in the vibrating direction when the driving voltage is applied to the first electrode portions and the second electrode portion, and a bridging portion coupling and electrically connecting two first electrode portions of at least the two first electrode portions with each other, and the ultrasonic vibration apparatus further includes an anti-vibration portion to suppress vibration of the bridging portion in any other direction excType: ApplicationFiled: February 24, 2014Publication date: June 19, 2014Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yuji Hirai, Masashi Yamada, Machiko Koshigoe
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Patent number: 8685264Abstract: A slide member includes a substrate that is made of a metal material and has a sliding surface with a plurality of microdimples formed therein. Each of the microdimple has a circular opening, the microdimples are arranged in regular intervals in a hexagonal close-packed configuration, and the area ratio of the openings of all the microdimples to the entire sliding surface is in the range of 50 to 80%.Type: GrantFiled: September 12, 2011Date of Patent: April 1, 2014Assignees: Toyota Jidosha Kabushiki Kaisha, Tohoku UniversityInventors: Masataka Kaido, Atsushi Suzuki, Masatsugu Shimomura, Hiroshi Yabu, Yuji Hirai
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Publication number: 20130168351Abstract: A slide member includes a substrate that is made of a metal material and has a sliding surface with a plurality of microdimples formed therein. Each of the microdimple has a circular opening, the microdimples are arranged in regular intervals in a hexagonal close-packed configuration, and the area ratio of the openings of all the microdimples to the entire sliding surface is in the range of 50 to 80%.Type: ApplicationFiled: September 12, 2011Publication date: July 4, 2013Applicants: TOHOKU UNIVERSITY, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masataka Kaido, Atsushi Suzuki, Masatsugu Shimomura, Hiroshi Yabu, Yuji Hirai
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Publication number: 20120187806Abstract: An ultrasonic vibration apparatus includes a vibrator including at least two vibration elements, at least three electrode portions, a bridging portion and an anti-vibration portion. The vibration elements are configured to generate ultrasonic vibration. The vibration elements and the electrode portions are alternately arranged side by side in a vibrating direction. The electrode portions include at least two first electrode portions and at least one second electrode portion alternately arranged in the vibrating direction. The vibrator integrally vibrates ultrasonically in the vibrating direction when the driving voltage is applied to the first and second electrode portions. The bridging portion couples and electrically connects the first electrode portions with each other. The anti-vibration portion is configured to suppress vibration of the bridging portion in any other direction-except the vibration direction and configured to cover the entire vibrator including the bridging portion.Type: ApplicationFiled: February 6, 2012Publication date: July 26, 2012Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Yuji Hirai, Masashi Yamada, Machiko Koshigoe
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Patent number: 8206410Abstract: A surgical operating apparatus includes an ultrasonic transducer which generates ultrasonic vibration, a transducer cover including a storing section which stores the ultrasonic transducer, an electric contact portion provided on an outer peripheral surface of a distal end portion of the transducer cover, and an insulative projection portion which is provided at a distal end portion of the transducer cover and projects more radially outward than an outer peripheral surface of the electric contact portion.Type: GrantFiled: March 31, 2008Date of Patent: June 26, 2012Assignee: Olympus Medical Systems Corp.Inventor: Yuji Hirai
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Patent number: 8128646Abstract: An ultrasonic vibration apparatus includes a vibrator, wherein the vibrator includes at least two vibration elements to generate ultrasonic vibration when a driving voltage is applied to the vibration elements, at least three electrode portions wherein the vibration elements and the electrode portions is alternately arranged side by side in a vibrating direction, at least the three electrode portions includes at least two first electrode portions and at least one second electrode portion alternately arranged in the vibrating direction, the vibrator integrally vibrates ultrasonically in the vibrating direction when the driving voltage is applied to the first electrode portions and the second electrode portion, and a bridging portion coupling and electrically connecting two first electrode portions of at least the two first electrode portions with each other, and the ultrasonic vibration apparatus further includes an anti-vibration portion to suppress vibration of the bridging portion in any other direction excType: GrantFiled: June 3, 2008Date of Patent: March 6, 2012Assignee: Olympus Medical Systems, Corp.Inventors: Yuji Hirai, Masashi Yamada, Machiko Koshigoe
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Publication number: 20110124252Abstract: The present invention has an object to provide a process for producing a conductive film, which enables low-cost, easy production of conductive mesh films that have a fine mesh structure and can prevent moiré patterns when used in displays and the like, and a conductive film. The production process includes applying an organic solvent dispersion containing conductive fine particles to a substrate; and evaporating the organic solvent while condensing water vapor in air into water droplets on the surface of the applied organic solvent dispersion. The conductive film has a mesh shape and the mesh shape is formed by mesh lines made of a conductive material and holes. The average area of the holes is not more than 400 ?m2, and the mesh lines each have a width of not more than 5 ?m.Type: ApplicationFiled: June 24, 2009Publication date: May 26, 2011Applicant: Nippon Shokubai Co., LtdInventors: Masatsugu Shimomura, Hiroshi Yabu, Yuji Hirai, Takanori Hattori, Takaharu Fujita
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Publication number: 20090299395Abstract: An ultrasonic vibration apparatus includes a vibrator, wherein the vibrator includes at least two vibration elements to generate ultrasonic vibration when a driving voltage is applied to the vibration elements, at least three electrode portions wherein the vibration elements and the electrode portions is alternately arranged side by side in a vibrating direction, at least the three electrode portions includes at least two first electrode portions and at least one second electrode portion alternately arranged in the vibrating direction, the vibrator integrally vibrates ultrasonically in the vibrating direction when the driving voltage is applied to the first electrode portions and the second electrode portion, and a bridging portion coupling and electrically connecting two first electrode portions of at least the two first electrode portions with each other, and the ultrasonic vibration apparatus further includes an anti-vibration portion to suppress vibration of the bridging portion in any other direction excType: ApplicationFiled: June 3, 2008Publication date: December 3, 2009Inventors: Yuji Hirai, Masashi Yamada, Machiko Koshigoe
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Publication number: 20090275864Abstract: A surgical operating apparatus includes an ultrasonic transducer which generates ultrasonic vibration, a transducer cover including a storing section which stores the ultrasonic transducer, an electric contact portion provided on an outer peripheral surface of a distal end portion of the transducer cover, and an insulative projection portion which is provided at a distal end portion of the transducer cover and projects more radially outward than an outer peripheral surface of the electric contact portion.Type: ApplicationFiled: March 31, 2008Publication date: November 5, 2009Inventor: Yuji HIRAI