Patents by Inventor Tsutomu Okada

Tsutomu Okada 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: 10349962
    Abstract: An endoscope treatment tool includes: a sheath having a lumen; a basket portion being configured to protrude from the lumen and formed of at least one elastic wire; and a manipulation wire causing the basket portion to be moved, wherein the elastic wire has a maximum-outer-diameter portion between distal and proximal ends of the elastic wire and a largest portion that, between the maximum-outer-diameter portion and the proximal end of the elastic wire, reaches the maximum size in an opposite direction from maximum-outer-diameter portion in a side view from a direction orthogonal to a perpendicular line drawn to a center axis from the maximum-outer-diameter portion, and wherein, in a front view of the basket portion, the largest portion is positioned on an opposite side from the side of the maximum-outer-diameter portion with respect to a straight line that is orthogonal to the perpendicular line on the center axis.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: July 16, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Publication number: 20190199064
    Abstract: A substrate including a photonic crystal has a compound semiconductor, dielectric layers, and a first semiconductor layer. The dielectric layers are provided on a surface of the compound semiconductor substrate and disposed at each grating point of a two-dimensional diffraction grating, each of the dielectric layers having an asymmetric shape in relation to at least one edge of the two-dimensional diffraction grating and having a refractive index lower than a refractive index of the compound semiconductor substrate. The first semiconductor layer includes a flat first face covering the dielectric layers and the surface of the compound semiconductor substrate, a layer constituting the first face containing a material capable of being lattice matched to a material constituting the compound semiconductor substrate.
    Type: Application
    Filed: December 27, 2017
    Publication date: June 27, 2019
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Rei HASHIMOTO, Shinji Saito, Tsutomu Kakuno, Kei Kaneko, Yasunobu Kai, Naotada Okada
  • Publication number: 20190162679
    Abstract: In a data processing apparatus, image data are calculated based on photon counts of an X-ray beam transmitted through an object. Based on the image data, X-ray attenuation information is calculated. The attenuation information includes i) inherent information inherently depending on a type or a property of the object, the inherent information being indicated by a quantity of a vector in an n-dimensional coordinate whose dimension is equal in number to the n-piece energy ranges; and ii) associated information being associated with the inherent information and depending on a length of a path along which the X-ray beam passes though the object. From the attenuation information, only the inherent information is produced which is independent of the associated information. Scattering points corresponding to the inherent information are calculated to be mapped in the n-dimensional coordinate or in a coordinate whose dimension is less than the n-dimensional coordinate.
    Type: Application
    Filed: May 16, 2018
    Publication date: May 30, 2019
    Inventors: Tsutomu YAMAKAWA, Shuichiro YAMAMOTO, Masahiro OKADA
  • Patent number: 10238407
    Abstract: A binding part of a basket-type grasping forceps includes: a first binding part to which proximal ends of first wires that are some of a plurality of basket wires are fixed; and a second binding part to which proximal ends of second wires not connected to the first binding part among the plurality of basket wires are fixed, which is engaged with the first binding part to be separable from the first binding part, is containable inside a sheath along with the first binding part in a state in which the second binding part is engaged with the first binding part, and is held by an inner surface of the sheath to be inseparable from the first binding part in the sheath.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: March 26, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Patent number: 10182835
    Abstract: A stone extraction fragmentation device of the present invention include: a stone extraction operation section having a first main body and a gripping section; and a fragmentation operation section having a second main body, a moving body which is capable of being connected with the first main body, and a rotating knob which is configured to move the moving body with respect to the second main body, wherein the moving body is configured to move the first main body in a direction away from the second main body by rotation of the rotating knob.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: January 22, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Publication number: 20180317945
    Abstract: An endoscope treatment tool includes: a sheath having a lumen; a basket section protruding from the lumen and having an elastic wire; and an operating wire. The elastic wire has: a maximum section where the outer diameter of the basket section is largest of the elastic wire; a first section that, in a lateral view from a direction orthogonal to a normal from the maximum section to the central axis of the basket section, is largest on the opposite side of the central axis from the maximum section between the maximum section and the proximal end; and a second section that is largest at a position away from the normal between the maximum section and the first section, and in the front view, the first section is located on the opposite side of a straight line orthogonal to the normal at the central axis from the maximum section side.
    Type: Application
    Filed: July 17, 2018
    Publication date: November 8, 2018
    Applicant: OLYMPUS CORPORATION
    Inventors: Tsutomu OKADA, Hiroyuki MORISHITA
  • Publication number: 20180280042
    Abstract: An endoscope treatment tool includes: a sheath having a lumen; a basket portion being configured to protrude from the lumen and formed of at least one elastic wire; and a manipulation wire causing the basket portion to be moved, wherein the elastic wire has a maximum-outer-diameter portion between distal and proximal ends of the elastic wire and a largest portion that, between the maximum-outer-diameter portion and the proximal end of the elastic wire, reaches the maximum size in an opposite direction from maximum-outer-diameter portion in a side view from a direction orthogonal to a perpendicular line drawn to a center axis from the maximum-outer-diameter portion, and wherein, in a front view of the basket portion, the largest portion is positioned on an opposite side from the side of the maximum-outer-diameter portion with respect to a straight line that is orthogonal to the perpendicular line on the center axis.
    Type: Application
    Filed: June 5, 2018
    Publication date: October 4, 2018
    Applicant: OLYMPUS CORPORATION
    Inventor: Tsutomu OKADA
  • Patent number: 10058341
    Abstract: An endoscopic treatment instrument includes a sheath; a basket section formed by elastic wires; a manipulation wire connected to the basket section; and a distal end cover attached to a distal end of the sheath. The distal end cover has: a first opening; a second opening; an inner peripheral surface disposed between the first and second opening; and a curved surface bent over the whole circumference in t circumference direction of the distal end cover. Each of the plurality of the elastic wires has: a proximal end portion, a distal end portion, and a maximum diameter section. A radius of curvature of the curved surface is smaller than a radius of curvature of each of the plurality of the elastic wires. A contact position of the elastic wires and the curved surface moves in accordance with a retraction of the elastic wires.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: August 28, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Patent number: 9924960
    Abstract: An endoscope treatment tool includes: a tubular sheath member insertable into a channel of an endoscope; a wire inserted into the interior of the member in such a manner that the wire can be advanced/retracted in the longitudinal direction of the member; and a distal-end treating portion provided at the distal end of the wire and made to protrude from/be pulled into a distal-end opening in the member by advancing/retracting the wire, wherein the member is configured having a two-layer structure in which a metal coil and a resin tube are layered in the radial direction and secured to each other, in the coil, lateral cross-sectional shapes of portions of a strand that are adjacent to each other in the longitudinal direction have complementary depression and protrusion that are brought into tight contact with each other, and the tube has a flexural rigidity greater than that of the coil.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: March 27, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Patent number: 9775634
    Abstract: In a discharge mechanism of basket-type grasping forceps according to the present invention, a support member can advance and retract relative to a plurality of basket wires, the position of the support member can be fixed, and an object inside a basket part is discharged to the outside of the basket part from a portion of the basket part proximal to the basket wires by movement of the support member and the basket part relative to each other.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: October 3, 2017
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Publication number: 20170252052
    Abstract: An endoscopic treatment instrument includes a sheath; a basket section formed by elastic wires; a manipulation wire connected to the basket section; and a distal end cover attached to a distal end of the sheath. The distal end cover has: a first opening; a second opening; an inner peripheral surface disposed between the first and second opening; and a curved surface bent over the whole circumference in the circumference direction of the distal end cover. Each of the plurality of the elastic wires has: a proximal end portion, a distal end portion, and a maximum diameter section. A radius of curvature of the curved surface is smaller than a radius of curvature of each of the plurality of the elastic wires. A contact position of the elastic wires and the curved surface moves in accordance with a retraction of the elastic wires.
    Type: Application
    Filed: May 19, 2017
    Publication date: September 7, 2017
    Applicant: OLYMPUS CORPORATION
    Inventor: Tsutomu OKADA
  • Patent number: 9724114
    Abstract: In a discharge mechanism of basket-type grasping forceps according to the present invention, a support member can advance and retract relative to a plurality of basket wires, the position of the support member can be fixed, and an object inside a basket part is discharged to the outside of the basket part from a portion of the basket part proximal to the basket wires by movement of the support member and the basket part relative to each other.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: August 8, 2017
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Publication number: 20170156745
    Abstract: An endoscope treatment tool includes: a tubular sheath member insertable into a channel of an endoscope; a wire inserted into the interior of the member in such a manner that the wire can be advanced/retracted in the longitudinal direction of the member; and a distal-end treating portion provided at the distal end of the wire and made to protrude from/be pulled into a distal-end opening in the member by advancing/retracting the wire, wherein the member is configured having a two-layer structure in which a metal coil and a resin tube are layered in the radial direction and secured to each other, in the coil, lateral cross-sectional shapes of portions of a strand that are adjacent to each other in the longitudinal direction have complementary depression and protrusion that are brought into tight contact with each other, and the tube has a flexural rigidity greater than that of the coil.
    Type: Application
    Filed: February 23, 2017
    Publication date: June 8, 2017
    Applicant: OLYMPUS CORPORATION
    Inventor: Tsutomu OKADA
  • Patent number: 9649015
    Abstract: A treatment tool for an endoscope includes: a distal end member attached to a distal end of an endoscope; a treatment part; a tube that is arranged in an axis direction of the endoscope and has a lumen formed therein; an insertion part that is inserted into the lumen and has a distal end to which the treatment part is fixed; a connecting member that connects the tube and the distal end member; a first pivot that couples the connecting member and the tube; and a second pivot that couples the connecting member and the distal end member. The second pivot is provided at a position at which the connecting member is capable of rotating such that the first pivot is moved from a position at a proximal end side relative to the second pivot to a position at a distal end side.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: May 16, 2017
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Publication number: 20170112516
    Abstract: A binding part of a basket-type grasping forceps includes: a first binding part to which proximal ends of first wires that are some of a plurality of basket wires are fixed; and a second binding part to which proximal ends of second wires not connected to the first binding part among the plurality of basket wires are fixed, which is engaged with the first binding part to be separable from the first binding part, is containable inside a sheath along with the first binding part in a state in which the second binding part is engaged with the first binding part, and is held by an inner surface of the sheath to be inseparable from the first binding part in the sheath.
    Type: Application
    Filed: January 6, 2017
    Publication date: April 27, 2017
    Applicant: OLYMPUS CORPORATION
    Inventor: Tsutomu OKADA
  • Publication number: 20170056033
    Abstract: A stone extraction fragmentation device of the present invention include: a stone extraction operation section having a first main body and a gripping section; and a fragmentation operation section having a second main body, a moving body which is capable of being connected with the first main body, and a rotating knob which is configured to move the moving body with respect to the second main body, wherein the moving body is configured to move the first main body in a direction away from the second main body by rotation of the rotating knob.
    Type: Application
    Filed: November 11, 2016
    Publication date: March 2, 2017
    Applicant: OLYMPUS CORPORATION
    Inventor: Tsutomu OKADA
  • Patent number: 9456736
    Abstract: A medical instrument system includes an elongated member having an inner space in a direction of a longitudinal axis, an insertion section installed at the inner space and having a bending section capable of being bent, a manipulation section configured to manipulate the bending section, a first manipulation member transmitting a driving force of the bending section in accordance with the manipulation by the manipulation section, a second manipulation member arranged in the direction of a longitudinal axis, a connecting section having a first connecting section and a second connecting section and capable of connecting the first manipulation member and the second manipulation member, and a switching mechanism having a first acting section and a second acting section and switching between a connection state and a release state in accordance with a relative movement between the elongated member and the insertion section.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: October 4, 2016
    Assignee: OLYMPUS CORPORATION
    Inventors: Yoshio Onuki, Kiyotaka Matsuno, Tatsutoshi Hashimoto, Tsutomu Okada, Kazuo Banju, Ken Shigeta, Naoki Iwanaga, Shotaro Takemoto, Ayano Ishioka
  • Publication number: 20160235423
    Abstract: Basket type grasping forceps include a sheath, a main body section, and a manipulation section, the main body section includes a basket section and a manipulation wire, the basket section includes a plurality of basket wires and a distal fixing member fixed to the plurality of basket wires, and the distal fixing member has a wire-fixing section to which a first wire serving which is at least one of the plurality of basket wires is fixed, and a high-strength fixing section to which a second wire which is at least another one of the plurality of basket wires is fixed more strongly than a fixing strength of the first wire in the wire-fixing section.
    Type: Application
    Filed: April 27, 2016
    Publication date: August 18, 2016
    Applicant: OLYMPUS CORPORATION
    Inventor: Tsutomu OKADA
  • Patent number: 9387034
    Abstract: A high-frequency knife conduit line and opening hole opening communicate allowing fluid to flow between a rod-shaped electrode outer peripheral surface and the opening hole inner peripheral surface. The guide hole is smaller than the opening and is further toward a radial inner side than the opening outer edge and further toward a radial outer side than the rod-shaped electrode. The fluid is released from the opening to the outside of the sheath over the whole circumference of the rod-shaped electrode on the radial outer side while an electrode portion protrudes toward the sheath distal end portion separating a larger-diameter portion from a supporting member. The fluid is injected to the larger-diameter portion front through the guide hole as the opening hole and the guide hole communicate while the electrode portion is pulled back toward the sheath proximal end portion so that the larger-diameter portion abuts against the supporting member.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: July 12, 2016
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Publication number: 20160192957
    Abstract: In a discharge mechanism of basket-type grasping forceps according to the present invention, a support member can advance and retract relative to a plurality of basket wires, the position of the support member can be fixed, and an object inside a basket part is discharged to the outside of the basket part from a portion of the basket part proximal to the basket wires by movement of the support member and the basket part relative to each other.
    Type: Application
    Filed: March 15, 2016
    Publication date: July 7, 2016
    Applicant: OLYMPUS CORPORATION
    Inventor: Tsutomu OKADA