Patents by Inventor Toru Nagase

Toru Nagase 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: 10456503
    Abstract: A polymer laminate has 2-100 layers each containing a biodegradable resin and having a thickness of 10 nm-400 nm that are laminated, the thickness of at least one of the outermost layers is 10 nm-180 nm, and the outermost layers are joined to each other. A polymer laminate excellent in biocompatibility and mechanical strength and suitable to medical applications such as wound dressings and antiadhesive materials can be obtained.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: October 29, 2019
    Assignees: Toray University Educational System, Toray Industries, Inc.
    Inventors: Yosuke Okamura, Yu Nagase, Takuya Komachi, Motonori Hochi, Yuki Sekido, Toru Arakane
  • Patent number: 9033983
    Abstract: A treatment system includes a seal member, a maintaining member and a control section, and is configured to exert energy to a living tissue to treat the living tissue. The seal member is configured to join a sealed region which seals desirable regions of at least two living tissues when the energy is exerted to the sealed region. The maintaining member is configured to maintain the living tissues in the vicinity of the sealed region being brought into contact with each other when the energy is exerted to the living tissues. The control section is configured to offset energy output timings of the seal member and the maintaining member.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: May 19, 2015
    Assignee: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Tomoyuki Takashino, Koji Iida, Toru Nagase
  • Patent number: 8632563
    Abstract: A surgical instrument having including a fixed handle and a pivoting handle, an elongated treatment part operating rod connected to the pivoting handle which advances and retracts with the operation of the pivoting handle, an insertion part through which the operating rod is inserted, a pivoting base supported on the distal end portion of the insertion part via a pivoting shaft so that the pivoting base is free to pivot, an elongated pivoting base operating rod whose distal end portion is connected to the pivoting base which causes the pivoting base to pivot about the pivoting shaft, a treatment part base which is connected to the pivoting base, and on which a surgical treatment part which performs an opening-and-closing action is disposed, and a joint member having a plurality of universal joints connects the treatment part operating rod and the surgical treatment part disposed on the treatment part base.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: January 21, 2014
    Assignee: Olympus Corporation
    Inventors: Toru Nagase, Kazunori Taniguchi
  • Patent number: 8348947
    Abstract: A treatment system that applies energy to a living tissue to treat the same, the treatment system includes a sealing member which joins desired sealed regions of at least two living tissues when the energy is applied to the living tissues in a state where the desired regions are sealed, a maintaining member which maintains living tissues near the sealed regions in a contact state when the energy is applied to the living tissues in a state where the tissues near the regions sealed by the sealing member are in contact with each other, at least one first control section which controls an output of the energy that is applied to the sealing member, and at least one second control section which controls an output of the energy that is applied to the maintaining member.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: January 8, 2013
    Assignee: Olympus Medical Systems Corp.
    Inventors: Tomoyuki Takashino, Koji Iida, Toru Nagase
  • Patent number: 7935114
    Abstract: A treatment system includes an energy source, a pair of holding portions, an output portion and a first channel. At least one of the holding portions is configured to relatively move with respect to the other holding portion. The output portion is disposed on at least one of the pair of holding portions and connected with the energy source. The output portion is configured to generate a fluid including a gas and/or a liquid from the living tissue by the energy supplied from the energy source. The first channel is disposed at a position close to the output portion. The first channel is configured to pass the fluid generated from the living tissue.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: May 3, 2011
    Assignee: Olympus Medical Systems Corp.
    Inventors: Tomoyuki Takashino, Toru Nagase, Koji Iida, Mai Wakamatsu
  • Publication number: 20110028971
    Abstract: A treatment system includes a seal member, a maintaining member and a control section, and is configured to exert energy to a living tissue to treat the living tissue. The seal member is configured to join a sealed region which seals desirable regions of at least two living tissues when the energy is exerted to the sealed region. The maintaining member is configured to maintain the living tissues in the vicinity of the sealed region being brought into contact with each other when the energy is exerted to the living tissues. The control section is configured to offset energy output timings of the seal member and the maintaining member.
    Type: Application
    Filed: October 18, 2010
    Publication date: February 3, 2011
    Inventors: Tomoyuki TAKASHINO, Koji IIDA, Toru NAGASE
  • Patent number: 7789883
    Abstract: A treatment system includes an energy source, a pair of holding portions, an output portion and a cooling section. To hold a living tissue of a treatment target, at least one of the pair of the holding portions relatively moves with respect to the other holding portion. The output portion is disposed on at least one of the holding portions and connected with the energy source. Moreover, the output portion thermally denatures the living tissue, when the energy is supplied from the energy source. The cooling section inhibits the thermal spread in a direction away from the output portion.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: September 7, 2010
    Assignee: Olympus Medical Systems Corp.
    Inventors: Tomoyuki Takashino, Toru Nagase, Koji Iida, Mai Wakamatsu
  • Publication number: 20100157257
    Abstract: A high pressure discharge lamp ballast includes an AC power supply means for supplying a square wave alternating current to a high pressure discharge lamp having a bulb in which first and second electrodes are disposed so as to face each other. In the high pressure discharge lamp ballast, one modulation period (T0) of the square wave alternating current supplied by the AC power supply means comprises a first asymmetrical current period (T1) for melting a protrusion formed at the tip of the first electrode and growing a protrusion formed at the tip of the second electrode, a symmetrical current period (Ts) for conducting current having a positive-negative symmetrical square wave, and a second asymmetrical current period (T2) for growing the first protrusion and melting the second protrusion.
    Type: Application
    Filed: September 19, 2008
    Publication date: June 24, 2010
    Applicant: IWASAKI ELECTRIC CO., LTD.
    Inventors: Yoshio Nishizawa, Shinichi Suzuki, Toru Nagase, Yoshiaki Komatsu, Yuya Yamazaki
  • Patent number: 7666206
    Abstract: A surgical instrument has an insertion section, an operation section disposed in a proximal end of the insertion section, and a treatment section disposed in a distal end of the insertion section. First and second driving rods are disposed in the insertion section. The operation section is opened/closed and rotated to transmit an opening/closing force to the first driving rod, and a rotating force to the second driving rod. The treatment section comprises a pair of jaws. The treatment section is connected to the distal end portions of the first and second driving rods disposed in the insertion section to rotate and open/close the pair of jaws with respect to the insertion section.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: February 23, 2010
    Assignee: Olympus Corporation
    Inventors: Kazunori Taniguchi, Toru Nagase
  • Publication number: 20090270852
    Abstract: A treatment system that applies energy to a living tissue to treat the same, the treatment system includes a sealing member which joins desired sealed regions of at least two living tissues when the energy is applied to the living tissues in a state where the desired regions are sealed, a maintaining member which maintains living tissues near the sealed regions in a contact state when the energy is applied to the living tissues in a state where the tissues near the regions sealed by the sealing member are in contact with each other, at least one first control section which controls an output of the energy that is applied to the sealing member, and at least one second control section which controls an output of the energy that is applied to the maintaining member.
    Type: Application
    Filed: April 25, 2008
    Publication date: October 29, 2009
    Inventors: Tomoyuki TAKASHINO, Koji IIDA, Toru NAGASE
  • Patent number: 7494499
    Abstract: The disclosed invention relates to an improvement in a surgical therapeutic instrument which includes an inserting part, a manipulating part, and a therapeutic part. In a link mechanism having a transmission shaft for transmitting a driving force applied to the manipulating part to the therapeutic part, the position of the transmission shaft is restricted, and a joint is provided in the transmission shaft to reduce the strain of the transmission shaft. A sheath is also provided in the inserting part to facilitate cleaning thereof. A mechanism is provided for immovably locking the movable portion. A circular arc centered about a turning shaft is introduced into the shape of the manipulating part to improve the manipulability thereof. Further, the structure of a gripping portion of the manipulating part is improved.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: February 24, 2009
    Assignee: Olympus Corporation
    Inventors: Toru Nagase, Katsumi Sasaki
  • Publication number: 20090048589
    Abstract: A treatment device to treat a living tissue includes a sealing member which joints desired regions of at least two living tissues to each other in a sealed state, and a maintaining member which maintains contact between the tissues located in the vicinity of parts jointed by the sealing member.
    Type: Application
    Filed: August 14, 2007
    Publication date: February 19, 2009
    Inventors: Tomoyuki TAKASHINO, Toru NAGASE, Koji IIDA, Mai WAKAMATSU
  • Patent number: 7476237
    Abstract: A surgical instrument includes a tubular member, a partition member for partitioning the inside of the tubular member, first and second shafts movable in forward and backward directions, an end effector, a base member connected to the second shaft, a supporting pin for supporting the base member to mount the end effector on the tubular member, a first connection member being movable in both forward and backward directions in the base member to open and close jaws connected to the end effector, a second connection member being movable through a joint formed by the supporting pin, a first operation control portion for manipulating the end effector via the first shaft, and a second operation control portion for moving the second shaft in both forward and backward directions to control the angle of the joint.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: January 13, 2009
    Assignee: Olympus Corporation
    Inventors: Kazunori Taniguchi, Toru Nagase
  • Publication number: 20080243213
    Abstract: A treatment system that applies energy to a living tissue includes first and second holding members, an operating section, an energy source, and a plurality of energy applying portions that apply energy supplied from the energy source. Each of the first and second holding members has a holding surface to hold the living tissue. The operating section operates a relative movement of at least one of the first and second holding members with respect to the other. The energy source supplies energy to at least one of the first and second holding members. The plurality of energy applying portions are provided on the applying surface of at least one of the first and second holding members, and uniforms density of energy applied to a living tissue held by the first and second holding members.
    Type: Application
    Filed: April 2, 2007
    Publication date: October 2, 2008
    Inventors: Tomoyuki TAKASHINO, Toru NAGASE, Koji IIDA, Mai WAKAMATSU
  • Publication number: 20080243121
    Abstract: A treatment system that applies energy to a living tissue includes first and second holding members, an operating section, an energy source, and a plurality of energy applying portions that apply energy supplied from the energy source. Each of the first and second holding members has a holding surface to hold the living tissue. The operating section operates a relative movement of at least one of the first and second holding members with respect to the other. The energy source supplies energy to at least one of the first and second holding members. The plurality of energy applying portions are provided on the holding surface of at least one of the first and second holding members, and control density of energy applied to a living tissue held by the first and second holding members.
    Type: Application
    Filed: April 2, 2007
    Publication date: October 2, 2008
    Inventors: Tomoyuki TAKASHINO, Toru NAGASE, Koji IIDA, Mai WAKAMATSU
  • Patent number: 7415301
    Abstract: A therapeutic system comprising a therapeutic applicator for treating living tissues and an observation unit for determining the position of the applicator. The therapeutic energy applied from the applicator to the living tissues is controlled in accordance with data representing the position of the applicator, determined by the observation unit. It is therefore easy to operate the system even if the applicator and the observation unit (e.g., an MRI apparatus) are used at the same time. The image of the living tissues remains clear during the use of the therapeutic applicator.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: August 19, 2008
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Norihiko Hareyama, Toru Nagase, Shinji Hatta
  • Publication number: 20080195091
    Abstract: A treatment system includes an energy source, a pair of holding portions, an output portion and a first channel. At least one of the holding portions is configured to relatively move with respect to the other holding portion. The output portion is disposed on at least one of the pair of holding portions and connected with the energy source. The output portion is configured to generate a fluid including a gas and/or a liquid from the living tissue by the energy supplied from the energy source. The first channel is disposed at a position close to the output portion. The first channel is configured to pass the fluid generated from the living tissue.
    Type: Application
    Filed: February 14, 2007
    Publication date: August 14, 2008
    Inventors: Tomoyuki Takashino, Toru Nagase, Koji Iida, Mai Wakamatsu
  • Publication number: 20080195090
    Abstract: A treatment system includes an energy source, a pair of holding portions, an output portion and a cooling section. To hold a living tissue of a treatment target, at least one of the pair of the holding portions relatively moves with respect to the other holding portion. The output portion is disposed on at least one of the holding portions and connected with the energy source. Moreover, the output portion thermally denatures the living tissue, when the energy is supplied from the energy source. The cooling section inhibits the thermal spread in a direction away from the output portion.
    Type: Application
    Filed: February 14, 2007
    Publication date: August 14, 2008
    Inventors: Tomoyuki Takashino, Toru Nagase, Koji Iida, Mai Wakamatsu
  • Patent number: 7397016
    Abstract: A heat generating element is constructed of at least a substrate, an insulating film disposed on the substrate, a heat generating portion provided with a thin film resistor disposed on at least a part of the insulating film, and a protective film disposed on the above-described insulating film and the above-described heat generating portion, wherein the above-described substrate and the above-described heat generating portion are composed of the same member. Additionally, a medical therapeutic instrument includes a treatment portion provided with the above-described heat generating element to heat a living body tissue by using the heat generated from the heat generating element and treat the living-body tissue. The heat generating element is mounted on the above-described treatment portion in such a manner that an outer surface of the above-described substrate of the heat generating element serves as a treatment surface.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: July 8, 2008
    Assignees: Olympus Corporation, Olympus Medical Systems Corp.
    Inventors: Yukihiro Aoki, Toru Nagase
  • Publication number: 20080103495
    Abstract: A high-frequency cauterization power supply apparatus is provided with an electrosurgical scalpel device. When an operator starts to excise a living tissue in a conductive liquid, high-frequency power is applied to a treatment electrode. When an output impedance detected at that time is lower than a preset value, a variable DC power source circuit (HVPS) is set to a constant-current control mode. High-frequency power including an instantaneous high voltage is intermittently applied to the treatment electrode in a state that current output is kept at a fixed value, whereby a discharging operation starts. When the output impedance value is larger than a preset value or is large, the variable DC power source circuit is set to a constant-voltage control mode, electric power having a predetermined voltage value is supplied to the treatment electrode, whereby a living tissue to be cauterized is cauterized by using an appropriate high-frequency current.
    Type: Application
    Filed: October 31, 2006
    Publication date: May 1, 2008
    Inventors: Takashi MIHORI, Tsuyoshi HAYASHIDA, Toru NAGASE, Aya ARIURA