Patents by Inventor Takashi Otawara

Takashi Otawara 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: 8540622
    Abstract: An endoscope includes: a distal end opening of a treatment instrument insertion channel opened at a side surface of a distal end portion; a treatment instrument elevator base that is provided at a position facing the distal end opening in the treatment instrument insertion channel and leads a distal end of a treatment instrument protruding from the distal end opening, to a desired position; a first wall portion along the insertion direction of the distal end opening; and a second wall portion at a proximal end side of the insertion direction of the distal end opening and provided with a groove in which a part of the treatment instrument elevator base is fitted when the treatment instrument elevator base is raised, and as the treatment instrument elevator base is raised, a guide wire protruding from the distal end opening is releasably engaged by contacting the treatment instrument elevator base, the first wall portion, and a surface constituting the groove of the second wall portion.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: September 24, 2013
    Assignee: Olympus Medical Systems Corp.
    Inventors: Seiji Kitano, Takashi Otawara, Takayasu Miyagi
  • Patent number: 8187175
    Abstract: An endoscope according to an aspect of the invention includes an image pickup connector portion projecting from one end side of an endoscope connector and connected to a first electrical contact of a video processor, and a magnification change connector portion projecting from the other end side of the endoscope connector opposite to the one end side and connected to a second electrical contact of a magnification control device.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: May 29, 2012
    Assignee: Olympus Medical Systems Corp.
    Inventors: Koichi Yoshimitsu, Takashi Otawara
  • Publication number: 20120078041
    Abstract: An endoscope includes: a distal end opening of a treatment instrument insertion channel opened at a side surface of a distal end portion; a treatment instrument elevator base that is provided at a position facing the distal end opening in the treatment instrument insertion channel and leads a distal end of a treatment instrument protruding from the distal end opening, to a desired position; a first wall portion along the insertion direction of the distal end opening; and a second wall portion at a proximal end side of the insertion direction of the distal end opening and provided with a groove in which a part of the treatment instrument elevator base is fitted when the treatment instrument elevator base is raised, and as the treatment instrument elevator base is raised, a guide wire protruding from the distal end opening is releasably engaged by contacting the treatment instrument elevator base, the first wall portion, and a surface constituting the groove of the second wall portion.
    Type: Application
    Filed: September 29, 2011
    Publication date: March 29, 2012
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Seiji KITANO, Takashi OTAWARA, Takayasu MIYAGI
  • Patent number: 8114013
    Abstract: An endoscope insertion portion capable of illuminating a diseased part corresponding to a part of an endoscope image by irradiation light in an amount approximately the same as that in non-enlarged display, when displaying the part of the endoscope image in an enlarged manner. The endoscope insertion portion of this invention includes: an insertion portion having a distal end surface; a first illumination optical system for irradiating light onto a subject; a second illumination optical system for irradiating light onto the subject; a first image pickup portion including on the distal end surface a first optical member for introducing light from the subject; and a second image pickup portion including a second optical member for introducing light from the subject, the second optical member being disposed in an area sandwiched by the first illumination optical system and the second illumination optical system.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: February 14, 2012
    Assignee: Olympus Medical Systems Corp.
    Inventor: Takashi Otawara
  • Patent number: 8092375
    Abstract: An endoscope insertion portion of the invention includes a plurality of observation windows having different outer diameters for leading incident light to a plurality of image pickup portions, and disposed on a distal end surface of the distal end portion; and an air/water feeding portion for spouting out a gas or liquid toward the plurality of observation windows, and disposed to the distal end portion. One of the plurality of observation windows having the largest outer diameter is disposed on the distal end surface at a position closest to the air/water feeding portion than the other of the plurality of observation windows.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: January 10, 2012
    Assignee: Olympus Medical Systems Corp.
    Inventor: Takashi Otawara
  • Patent number: 8038606
    Abstract: An endoscope insertion portion of this invention includes an air/water feeding portion for spouting gas or liquid from a spouting port to outer surfaces of the first observation optical system and the second observation optical system, which is disposed on the distal end portion so as to line up with the first observation optical system and the second observation optical system on a generally straight line. The air/water feeding portion is disposed on the distal end portion such that a spouting direction of the gas or the liquid has a first angle with respect to the first direction.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: October 18, 2011
    Assignee: Olympus Medical Systems Corp.
    Inventor: Takashi Otawara
  • Patent number: 8033990
    Abstract: An endoscope insertion portion of the invention includes a distal end portion, and a plurality of image pickup portions each including an image pickup device for obtaining an endoscope image, wherein the plurality of image pickup portions are disposed in the distal end portion such that agreement is made between first and second electric charge transfer directions in which electric charges are transferred from each photoelectric conversion device of the respective image pickup devices, thus avoiding a sense of incongruity (stress to a user) from being caused by endoscope images displayed on a monitor, which are obtained by a plurality of image pickup units.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: October 11, 2011
    Assignee: Olympus Medical Systems Corp.
    Inventor: Takashi Otawara
  • Patent number: 7998064
    Abstract: An endoscope insertion portion of the invention comprises: a distal end portion; first image pickup means for obtaining a first observation image, the first image pickup means being disposed to the distal end portion; second image pickup means for obtaining a second observation image, the second image pickup means being disposed to the distal end portion; a first object optical system for condensing photographing light incident on the first image pickup means, the first object optical system being located in the distal end portion; a second object optical system for condensing photographing light incident on the second image pickup means, the second object optical system being located in the distal end portion; and a plurality of illumination optical systems for irradiating light to a subject, the plurality of illumination optical systems being located in the distal end portion in a manner sandwiching each of the first object optical system and the second object optical system.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: August 16, 2011
    Assignee: Olympus Medical Systems Corp.
    Inventor: Takashi Otawara
  • Patent number: 7914441
    Abstract: An endoscope includes an insertion portion and a treatment instrument insertion channel, and is inserted into a body cavity; an operation portion which is connected to a proximal end side of the insertion portion; and a treatment instrument raiser which has a guiding surface for guiding a treatment instrument, and able to rise according to an operation from the operation portion. The raiser includes a slit which is formed on a distal end side of the guiding surface and with which a guide wire guided toward the distal end side opening can be engaged, and a guide wire guiding unit which is formed on an outer periphery of the guiding surface and serves to guide the guide wire into the slit. The guide wire is guided into the slit by the guiding unit, when the raiser is raised by the operation from the operation portion.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: March 29, 2011
    Assignee: Olympus Corporation
    Inventor: Takashi Otawara
  • Patent number: 7914440
    Abstract: An endoscope according includes a treatment instrument riser which guides a distal end of a treatment instrument projected from a distal end opening provided in a channel for inserting the treatment instrument in an insertion portion to a desired position; a driving mechanism which is rotatably fitted onto an axis provided in an operation portion covered with an outer packaging member, and drives the treatment instrument riser; a guide-wire securing unit which secures a position of a guide wire projected from the distal end opening provided in the channel in the insertion portion; a guide-wire securing operation member which operates the guide-wire securing unit; and a securing unit which secures a position of the guide-wire securing operation member in a state where the position of the guide-wire is secured.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: March 29, 2011
    Assignee: Olympus Corporation
    Inventor: Takashi Otawara
  • Patent number: 7896802
    Abstract: An endoscope insertion portion of the invention includes an outer surface formed between a plurality of observation windows oriented in a spouting direction of the air/water feeding portion, the outer surface being in the same plane as surfaces of the plurality of observation windows.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: March 1, 2011
    Assignee: Olympus Medical Systems Corp.
    Inventor: Takashi Otawara
  • Publication number: 20090124856
    Abstract: An endoscope insertion portion of the invention has a distal end portion, and includes first image pickup means for obtaining a normal light observation image; second image pickup means for obtaining a special light observation image; a first objective optical system for condensing first photographing light incident on the first image pickup means, the first objective optical system being located in the distal end portion; a second objective optical system for condensing second photographing light incident on the second image pickup means, the second objective optical system being located in the distal end portion; and a duct for spouting out liquid toward a diseased part in a body cavity, the duct having an aperture portion provided on the distal end portion, wherein the aperture portion of the duct is located at a position nearer to the second objective optical system than the first objective optical system, on the distal end portion.
    Type: Application
    Filed: February 28, 2006
    Publication date: May 14, 2009
    Inventor: Takashi Otawara
  • Publication number: 20080177144
    Abstract: There is provided an endoscope insertion portion capable of illuminating a diseased part corresponding to a part of an endoscope image by irradiation light in an amount approximately the same as that in non-enlarged display, when displaying the part of the endoscope image in an enlarged manner. The endoscope insertion portion of this invention includes: an insertion portion having a distal end surface; a first illumination optical system for irradiating light onto a subject; a second illumination optical system for irradiating light onto the subject; a first image pickup portion including on the distal end surface a first optical member for introducing light from the subject; and a second image pickup portion including a second optical member for introducing light from the subject, the second optical member being disposed in an area sandwiched by the first illumination optical system and the second illumination optical system.
    Type: Application
    Filed: July 3, 2007
    Publication date: July 24, 2008
    Inventor: Takashi Otawara
  • Publication number: 20080167529
    Abstract: An endoscope insertion portion of the invention comprises: a distal end portion; first image pickup means for obtaining a first observation image, the first image pickup means being disposed to the distal end portion; second image pickup means for obtaining a second observation image, the second image pickup means being disposed to the distal end portion; a first object optical system for condensing photographing light incident on the first image pickup means, the first object optical system being located in the distal end portion; a second object optical system for condensing photographing light incident on the second image pickup means, the second object optical system being located in the distal end portion; and a plurality of illumination optical systems for irradiating light to a subject, the plurality of illumination optical systems being located in the distal end portion in a manner sandwiching each of the first object optical system and the second object optical system.
    Type: Application
    Filed: February 28, 2006
    Publication date: July 10, 2008
    Inventor: Takashi Otawara
  • Publication number: 20080064928
    Abstract: An endoscope insertion portion of the invention includes a distal end portion, and a plurality of image pickup portions each including an image pickup device for obtaining an endoscope image, wherein the plurality of image pickup portions are disposed in the distal end portion such that agreement is made between first and second electric charge transfer directions in which electric charges are transferred from each photoelectric conversion device of the respective image pickup devices, thus avoiding a sense of incongruity (stress to a user) from being caused by endoscope images displayed on a monitor, which are obtained by a plurality of image pickup units.
    Type: Application
    Filed: July 5, 2007
    Publication date: March 13, 2008
    Applicant: Olympus Medical Systems Corp.
    Inventor: Takashi Otawara
  • Publication number: 20080039689
    Abstract: An endoscope according to an aspect of the invention includes an image pickup connector portion projecting from one end side of an endoscope connector and connected to a first electrical contact of a video processor, and a magnification change connector portion projecting from the other end side of the endoscope connector opposite to the one end side and connected to a second electrical contact of a magnification control device.
    Type: Application
    Filed: August 7, 2007
    Publication date: February 14, 2008
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Koichi Yoshimitsu, Takashi Otawara
  • Publication number: 20070260120
    Abstract: An endoscope insertion portion of this invention includes an air/water feeding portion for spouting gas or liquid from a spouting port to outer surfaces of the first observation optical system and the second observation optical system, which is disposed on the distal end portion so as to line up with the first observation optical system and the second observation optical system on a generally straight line. The air/water feeding portion is disposed on the distal end portion such that a spouting direction of the gas or the liquid has a first angle with respect to the first direction.
    Type: Application
    Filed: July 6, 2007
    Publication date: November 8, 2007
    Applicant: Olympus Medical Systems Corp.
    Inventor: Takashi Otawara
  • Publication number: 20070260113
    Abstract: There is provided an endoscope insertion portion capable of ensuring an excellent observation field of view. The endoscope insertion portion of this invention includes: an insertion portion including a distal end portion and provided inside with a duct allowing a medical instrument to be inserted; a first image pickup portion; a second image pickup portion; a first observation optical system for condensing light incident on the first image pickup portion; a second observation optical system for condensing light incident on the second image pickup portion; and an aperture portion communicating with the duct. On the distal end surface of the distal end portion, a distance between a center of the aperture portion and a center of the first observation optical system is shorter than a distance between the center of the aperture portion and a center of the second observation optical system.
    Type: Application
    Filed: July 3, 2007
    Publication date: November 8, 2007
    Inventor: Takashi Otawara
  • Publication number: 20070260119
    Abstract: An endoscope insertion portion of the invention includes a plurality of observation windows having different outer diameters for leading incident light to a plurality of image pickup portions, and disposed on a distal end surface of the distal end portion; and an air/water feeding portion for spouting out a gas or liquid toward the plurality of observation windows, and disposed to the distal end portion. One of the plurality of observation windows having the largest outer diameter is disposed on the distal end surface at a position closest to the air/water feeding portion than the other of the plurality of observation windows.
    Type: Application
    Filed: July 3, 2007
    Publication date: November 8, 2007
    Applicant: Olympus Medical Systems Corp.
    Inventor: Takashi Otawara
  • Publication number: 20070260118
    Abstract: An endoscope insertion portion of the invention includes an outer surface formed between a plurality of observation windows oriented in a spouting direction of the air/water feeding portion, the outer surface being in the same plane as surfaces of the plurality of observation windows.
    Type: Application
    Filed: July 3, 2007
    Publication date: November 8, 2007
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventor: Takashi Otawara