Patents by Inventor Koji Yasunaga
Koji Yasunaga 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: 12273638Abstract: An imaging device according to the present disclosure includes the plurality of normal pixels arranged in a matrix, the special pixel arranged by replacing a part of the normal pixels, the color filter corresponding to the normal pixels and arranged according to a predetermined rule, the special filter arranged corresponding to the special pixel, and the special pixel color filter arranged to surround at least a part of the periphery of the special filter.Type: GrantFiled: October 26, 2020Date of Patent: April 8, 2025Assignee: Sony Semiconductor Solutions CorporationInventors: Yuji Iseri, Hodaka Kira, Daisuke Hagihara, Kazuki Yoshida, Syo Yasunaga, Koji Yamaryo, Takeo Ono, Kimihiko Sato
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Patent number: 10537230Abstract: A bending operation mechanism of the endoscope is an operating section to operate a bending section, and a boot section to cover the main body of the operating section in a watertight manner by causing a tiltable operating lever provided at the frame section to pass through the boot section, includes a watertight fixing portion on its periphery. The endoscope includes a first fixing member engaged with the locking section of the frame section and locked unrotatably in the watertight fixing portion of the boot section to press the watertight fixing portion from an outer periphery side such that the watertight fixing portion is made watertight, and a second fixing member screwed with the frame section to fix the first fixing member on the frame section.Type: GrantFiled: March 28, 2017Date of Patent: January 21, 2020Assignee: OLYMPUS CORPORATIONInventors: Yuta Sato, Toshihiro Matsui, Takashi Matsunaga, Yuta Sekiguchi, Koji Yasunaga
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Publication number: 20190269300Abstract: An endoscope bending operation mechanism includes: an operation lever with one end being rotatably held; a frame configured to rotate with the operation lever; a fixing member rotatably supporting the frame; a rotation shaft coupled with an end portion of one of the frame and the fixing member; a bearing portion provided on the other of the frame and the fixing member and having a hole rotatably holding the rotation shaft; and a position defining portion configured to abut a part of the other of the frame and the fixing member to define a position of the rotation shaft. The position of the rotation shaft is adjustable, and by adjusting the position of the rotation shaft, a clearance between the bearing portion and the position defining portion in a direction along a central axis is adjusted.Type: ApplicationFiled: May 17, 2019Publication date: September 5, 2019Applicant: OLYMPUS CORPORATIONInventors: Toshihiro MATSUI, Koji YASUNAGA, Yuta SATO
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Patent number: 10244925Abstract: An endoscope includes: an image pickup portion including an image pickup device; an optical axis bending optical system; an operation input portion which pivots; an operation conversion portion that resolves an input of the operation input portion and generate a plurality of outputs; and an operation transmission portion that transmits the outputs of the operation conversion portion to a plurality of movable portions. The optical axis bending optical system includes a first prism rotatably supported around a second optical axis, and a second prism rotatably supported around a third optical axis. The operation transmission portion includes: an image pickup portion interlocking portion rotatably supporting the image pickup portion; and a prism rotation transmission portion including a first transmission member that rotates the first prism around the second optical axis, and a second transmission member that rotates the second prism around the third optical axis integrally with the first prism.Type: GrantFiled: June 15, 2017Date of Patent: April 2, 2019Assignee: OLYMPUS CORPORATIONInventors: Koji Yasunaga, Mitsutaka Kokubo
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Patent number: 9820631Abstract: An endoscope includes: an operation portion provided continuously with a proximal end of a rigid insertion portion having a longitudinal axis; an optical element disposed at a distal end part of the insertion portion so as to be rotationally movable around a first shaft perpendicular to the longitudinal axis and a second shaft parallel to the longitudinal axis; a single operation member disposed at the operation portion and swingable forward, backward, leftward, and rightward around a third shaft and a fourth shaft perpendicular to each other; a first transmission member that transmits a rotational force around the first shaft to the optical element by a tilting operation of the operation member around the third shaft; and a second transmission member that transmits a rotational force around the second shaft to the optical element by a tilting operation of the operation member around the fourth shaft.Type: GrantFiled: July 25, 2016Date of Patent: November 21, 2017Assignee: OLYMPUS CORPORATIONInventor: Koji Yasunaga
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Publication number: 20170280980Abstract: An endoscope includes: an image pickup portion including an image pickup device; an optical axis bending optical system; an operation input portion which pivots; an operation conversion portion that resolves an input of the operation input portion and generate a plurality of outputs; and an operation transmission portion that transmits the outputs of the operation conversion portion to a plurality of movable portions. The optical axis bending optical system includes a first prism rotatably supported around a second optical axis, and a second prism rotatably supported around a third optical axis. The operation transmission portion includes: an image pickup portion interlocking portion rotatably supporting the image pickup portion; and a prism rotation transmission portion including a first transmission member that rotates the first prism around the second optical axis, and a second transmission member that rotates the second prism around the third optical axis integrally with the first prism.Type: ApplicationFiled: June 15, 2017Publication date: October 5, 2017Applicant: OLYMPUS CORPORATIONInventors: Koji YASUNAGA, Mitsutaka KOKUBO
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Patent number: 9743827Abstract: An endoscope includes: operation wires insertedly arranged inside an insertion portion and an operation portion, the operation wires causing a bending portion to bend by being pulled/slackened; an operation member provided on the operation portion, the operation member performing a bending operation of the bending portion; a rotation member provided in the operation portion, the rotation member pulling/slackening the operation wires by rotating in conjunction with an operation of the operation member; and an amount-of-operation-force reducing portion giving rotation torque in a direction in which the rotation member inclines to reduce an amount of operation force of the operation member, in response to inclination of the operation member, wherein the rotation torque of the amount-of-operation-force reducing portion changes in conjunction with displacement of the operation member operated, and the amount-of-operation-force reducing portion offsets and reduces the amount of operation force required for the operType: GrantFiled: April 20, 2016Date of Patent: August 29, 2017Assignee: OLYMPUS CORPORATIONInventors: Koji Yasunaga, Yuta Sekiguchi, Yuta Sato
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Publication number: 20170196435Abstract: A bending operation mechanism of the endoscope is an operating section to operate a bending section, and a boot section to cover the main body of the operating section in a watertight manner by causing a tiltable operating lever provided at the frame section to pass through the boot section, includes a watertight fixing portion on its periphery. The endoscope includes a first fixing member engaged with the locking section of the frame section and locked unrotatably in the watertight fixing portion of the boot section to press the watertight fixing portion from an outer periphery side such that the watertight fixing portion is made watertight, and a second fixing member screwed with the frame section to fix the first fixing member on the frame section.Type: ApplicationFiled: March 28, 2017Publication date: July 13, 2017Applicant: OLYMPUS CORPORATIONInventors: Yuta SATO, Toshihiro MATSUI, Takashi MATSUNAGA, Yuta SEKIGUCHI, Koji YASUNAGA
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Patent number: 9681795Abstract: An endoscope holding apparatus includes: a base section; a support column; a first link and a second link that rotate around a first linking portion; a third link that rotates around a second linking portion; a fourth link capable of holding an endoscope; a fifth link including a first counter weight; a second counterweight linked to the second linking portion; a sixth link including one arm linked to the fifth link; and a seventh link including a first end configured to rotate around a fifth linking portion and a second end configured to rotate around a sixth linking portion, wherein the first, fifth, sixth, and third linking portions form a parallelogram.Type: GrantFiled: November 22, 2016Date of Patent: June 20, 2017Assignee: OLYMPUS CORPORATIONInventor: Koji Yasunaga
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Publication number: 20170071454Abstract: An endoscope holding apparatus includes: a base section; a support column; a first link and a second link that rotate around a first linking portion; a third link that rotates around a second linking portion; a fourth link capable of holding an endoscope; a fifth link including a first counter weight; a second counterweight linked to the second linking portion; a sixth link including one arm linked to the fifth link; and a seventh link including a first end configured to rotate around a fifth linking portion and a second end configured to rotate around a sixth linking portion, wherein the first, fifth, sixth, and third linking portions form a parallelogram.Type: ApplicationFiled: November 22, 2016Publication date: March 16, 2017Applicant: OLYMPUS CORPORATIONInventor: Koji YASUNAGA
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Patent number: 9500851Abstract: An endoscope includes: an insertion portion; an operation portion; a bending wire that causes a bending portion to bend by pulling; a bending operation member that gives pulling force to the bending wire by swinging; an operation force reduction portion including a spring that can press the bending operation member; and a semi-fixation mechanism switch operation member that makes a switch to a pressing state, in which the spring presses the bending operation member, and to a non-pressing state.Type: GrantFiled: April 19, 2016Date of Patent: November 22, 2016Assignee: OLYMPUS CORPORATIONInventors: Koji Yasunaga, Yuta Sekiguchi, Yuta Sato
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Publication number: 20160331212Abstract: An endoscope includes: an operation portion provided continuously with a proximal end of a rigid insertion portion having a longitudinal axis; an optical element disposed at a distal end part of the insertion portion so as to be rotationally movable around a first shaft perpendicular to the longitudinal axis and a second shaft parallel to the longitudinal axis; a single operation member disposed at the operation portion and swingable forward, backward, leftward, and rightward around a third shaft and a fourth shaft perpendicular to each other; a first transmission member that transmits a rotational force around the first shaft to the optical element by a tilting operation of the operation member around the third shaft; and a second transmission member that transmits a rotational force around the second shaft to the optical element by a tilting operation of the operation member around the fourth shaft.Type: ApplicationFiled: July 25, 2016Publication date: November 17, 2016Applicant: OLYMPUS CORPORATIONInventor: Koji YASUNAGA
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Publication number: 20160231556Abstract: An endoscope includes: an insertion portion; an operation portion; a bending wire that causes a bending portion to bend by pulling; a bending operation member that gives pulling force to the bending wire by swinging; an operation force reduction portion including a spring that can press the bending operation member; and a semi-fixation mechanism switch operation member that makes a switch to a pressing state, in which the spring presses the bending operation member, and to a non-pressing state.Type: ApplicationFiled: April 19, 2016Publication date: August 11, 2016Applicant: OLYMPUS CORPORATIONInventors: Koji YASUNAGA, Yuta SEKIGUCHI, Yuta SATO
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Publication number: 20160227986Abstract: An endoscope includes: operation wires insertedly arranged inside an insertion portion and an operation portion, the operation wires causing a bending portion to bend by being pulled/slackened; an operation member provided on the operation portion, the operation member performing a bending operation of the bending portion; a rotation member provided in the operation portion, the rotation member pulling/slackening the operation wires by rotating in conjunction with an operation of the operation member; and an amount-of-operation-force reducing portion giving rotation torque in a direction in which the rotation member inclines to reduce an amount of operation force of the operation member, in response to inclination of the operation member, wherein the rotation torque of the amount-of-operation-force reducing portion changes in conjunction with displacement of the operation member operated, and the amount-of-operation-force reducing portion offsets and reduces the amount of operation force required for the operType: ApplicationFiled: April 20, 2016Publication date: August 11, 2016Applicant: OLYMPUS CORPORATIONInventors: Koji YASUNAGA, Yuta SEKIGUCHI, Yuta SATO
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Publication number: 20160192823Abstract: An endoscope system of the present invention includes an image pickup section that photoelectrically converts an optical image to generate an electronic image signal, an insertion portion that incorporates the image pickup section, includes a bendable bending portion and is inserted into a subject, a lever portion that is swingable in a direction orthogonal to a central axis, held so as to be rotatable around the central axis and swung to thereby bend the bending portion, and a video processor section that receives an image signal generated by the image pickup section, generates a display image signal, performs rotating image signal processing on the display image signal in accordance with a rotation of the lever portion and outputs the processing result to an image display apparatus.Type: ApplicationFiled: March 16, 2016Publication date: July 7, 2016Applicant: OLYMPUS CORPORATIONInventors: Koji YASUNAGA, Ai YONEKURA
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Patent number: 9337129Abstract: A semiconductor device includes: a semiconductor element having an electrode facing a first direction; a first lead having a conductive distal end surface facing the electrode, and a rising portion which is connected to the distal end surface to extend away from the electrode; a conductive bonding material bonding the electrode of the semiconductor element to the distal end surface of the first lead; and a sealing resin covering the semiconductor element, at least a portion of the first lead, and the conductive bonding material.Type: GrantFiled: March 26, 2014Date of Patent: May 10, 2016Assignee: Rohm Co., Ltd.Inventors: Koji Yasunaga, Shingo Takaki
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Patent number: 8858423Abstract: A distal arm that holds a rigid endoscope includes a multi-joint articulated arm including first to fourth distal arm portions sequentially connected from a base portion side, and these first to fourth distal arm portions are configured so as to move on a vertical plane with horizontal rotational shafts as supports. In addition, behaviors of the respective distal arm portions are linked by a linking mechanism so that the first distal arm portion and the third distal arm portion behave in parallel to each other, and the second distal arm portion and the fourth distal arm portion behave in parallel to each other.Type: GrantFiled: October 12, 2011Date of Patent: October 14, 2014Assignee: Olympus Medical Systems Corp.Inventors: Koji Yasunaga, Motokazu Nakamura, Kenji Hirose, Hisao Isobe
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Publication number: 20140291828Abstract: A semiconductor device includes: a semiconductor element having an electrode facing a first direction; a first lead having a conductive distal end surface facing the electrode, and a rising portion which is connected to the distal end surface to extend away from the electrode; a conductive bonding material bonding the electrode of the semiconductor element to the distal end surface of the first lead; and a sealing resin covering the semiconductor element, at least a portion of the first lead, and the conductive bonding materialType: ApplicationFiled: March 26, 2014Publication date: October 2, 2014Applicant: ROHM CO., LTD.Inventors: Koji YASUNAGA, Shingo TAKAKI
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Publication number: 20120088963Abstract: A distal arm that holds a rigid endoscope includes a multi-joint articulated arm including first to fourth distal arm portions sequentially connected from a base portion side, and these first to fourth distal arm portions are configured so as to move on a vertical plane with horizontal rotational shafts as supports. In addition, behaviors of the respective distal arm portions are linked by a linking mechanism so that the first distal arm portion and the third distal arm portion behave in parallel to each other, and the second distal arm portion and the fourth distal arm portion behave in parallel to each other.Type: ApplicationFiled: October 12, 2011Publication date: April 12, 2012Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Koji Yasunaga, Motokazu Nakamura, Kenji Hirose, Hisao Isobe
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Patent number: 8038108Abstract: An apparatus for supporting a medical instrument includes an arm, which has a support portion to support a medical instrument at one end, and an intermediate portion of which is supported by a base portion via a support column. The arm moves the support portion horizontally and vertically. The apparatus also includes a rotary connecting member, which is provided at a second end of the arm and moves to a position corresponding to a position to which the support portion has been moved. The apparatus further includes a counterweight, which is connected to the support column to be immovable in the horizontal directions and movable in the vertical directions, and generates vertically downward force. The rotary connecting member is connected to the counterweight so as to be movable in the horizontal directions relative to the counterweight and movable in the vertical directions together with the counterweight.Type: GrantFiled: April 7, 2009Date of Patent: October 18, 2011Assignee: Olympus Medical Systems Corp.Inventors: Koji Yasunaga, Kenji Harano, Noriaki Kanazawa