Patents by Inventor Takakazu Ishigami

Takakazu Ishigami 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: 9277856
    Abstract: An illumination device (1a) includes a light source section (21) outputting excitation light; a fluorescent member (22) excited by the excitation light to emit illumination light; a first light transmitting section (24) disposed between the light source section (21) and the fluorescent member (22) to guide the excitation light output from the light source section (21) to the fluorescent member (22); and a second light transmitting section (25), which is arranged closer to the distal side than the fluorescent member (22) to guide the illumination light emitted from the fluorescent member (22). According to the invention, it is possible to provide an illumination device and an endoscope apparatus capable of exciting the fluorescent member to radiate illumination light, without directly radiating laser light from the light source section to the outside, even if a bending portion or more distal side than the bending portion is damaged in an insertion part.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: March 8, 2016
    Assignee: OLYMPUS CORPORATION
    Inventors: Eiichi Kobayashi, Takakazu Ishigami
  • Patent number: 8900132
    Abstract: The endoscope apparatus of the present invention includes: an insertion portion having a bending portion; an observation device that is provided at the insertion portion; an illumination unit that is provided at the insertion portion, and that illuminates a visual field of the observation device; a main body unit that is formed having a size that enables it to be held and operated by one hand of a user; an operating section that is used to operate the bending portion; a display unit that is connected to the insertion portion, and that displays images acquired by the observation device; a light emitting component that is provided in the main body unit, and that is connected via a light guide to the illumination unit; a heat discharge unit that is provided at the main body unit such that at least a portion thereof is exposed, and that is thermally connected to the light emitting component; and a shielding portion that is provided at the main body unit, and that covers at least a portion of the periphery of the
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: December 2, 2014
    Assignee: Olympus Corporation
    Inventors: Takakazu Ishigami, Ayumu Inada
  • Patent number: 8480572
    Abstract: An adapter-type endoscope includes a distal end adapter and an insertion portion. The distal end adapter includes a light-emitting device substrate and an adapter-side electrical connection portion. The insertion portion includes a distal end portion to which the distal end adapter is detachably mounted, and has an insertion portion-side electrical connection portion connected to an adapter-side electrical connection portion, and a dual-purpose wire for power supply and heat release serving as both a heat releasing wire and a power source wire. The adapter-side electrical connection portion includes an electrical connection portion main body serving as both an electrical connection portion and a heat conducting portion and whose distal end surface closely contacts the light-emitting device substrate.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: July 9, 2013
    Assignee: Olympus Corporation
    Inventor: Takakazu Ishigami
  • Patent number: 8435173
    Abstract: An endoscope is provided capable of performing excellent observation for a long time by preventing decrease in light amount and generation of image noise caused by heat generated by an LED illumination even in a case where a distal-end adapter configured of the LED illumination is arranged at the distal end portion of the insertion unit. One end portion of a heat-radiating member configured of a plurality of elongated wires is arranged in the vicinity of a light emitting device, on the other hand, the other end portion of the heat-radiating member is arranged at a predetermined position on a proximal end side of an insertion unit, and a binding member for binding the wires of the heat-radiating member is provided on a side in the vicinity of the light emitting device of the heat-radiating member.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: May 7, 2013
    Assignee: Olympus Corporation
    Inventors: Yoichi Hosaka, Takakazu Ishigami, Yasunda Tanaka
  • Patent number: 8308637
    Abstract: An endoscope includes light emitting devices arranged in the distal end portion of its insertion unit, and at least one elongated heat-radiating member. One end of the radiating member is arranged in the vicinity of the light emitting devices and the other end is arranged in a predetermined position adjacent to the proximal end of the insertion unit. In observation using the endoscope, a decrease in the amount of illumination rays or the occurrence of image noise can be prevented, the decrease and the noise being caused due to heat generated by LED illumination lights arranged at the distal end of the insertion unit. Therefore, observation can be performed for a long time in good conditions.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: November 13, 2012
    Assignee: Olympus Corporation
    Inventors: Takakazu Ishigami, Yoichi Hosaka
  • Publication number: 20120071723
    Abstract: An endoscope apparatus, which is capable of performing measurement of a subject using a phase-shift method, includes: a main body; an insertion portion connected to the main body; and a plurality of pattern projection units, each of the plurality of pattern projection units including: a pattern window which is provided in a distal end of the insertion portion; and a pattern portion which has a line pattern in which a plurality of lines are periodically disposed with a predetermined period, the lines being parallel to each other, in which: the pattern portions of the plurality of pattern projection units are disposed such that the lines of the line patterns of the pattern portions are parallel to each other, and the line patterns of the pattern portions are shifted from each other by 1/n of 1the predetermined period of the line pattern, where the number of the plurality of pattern projection units assumed to be n (n?3); and the pattern windows of the plurality of pattern projection units are disposed such that
    Type: Application
    Filed: September 21, 2010
    Publication date: March 22, 2012
    Applicant: OLYMPUS CORPORATION
    Inventors: Takakazu Ishigami, Kiyotomi Ogawa
  • Publication number: 20110237893
    Abstract: An illumination device (1a) includes a light source section (21) outputting excitation light; a fluorescent member (22) excited by the excitation light to emit illumination light; a first light transmitting section (24) disposed between the light source section (21) and the fluorescent member (22) to guide the excitation light output from the light source section (21) to the fluorescent member (22); and a second light transmitting section (25), which is arranged closer to the distal side than the fluorescent member (22) to guide the illumination light emitted from the fluorescent member (22). According to the invention, it is possible to provide an illumination device and an endoscope apparatus capable of exciting the fluorescent member to radiate illumination light, without directly radiating laser light from the light source section to the outside, even if a bending portion or more distal side than the bending portion is damaged in an insertion part.
    Type: Application
    Filed: June 3, 2011
    Publication date: September 29, 2011
    Inventors: Eiichi KOBAYASHI, Takakazu ISHIGAMI
  • Publication number: 20110112361
    Abstract: An endoscope device has a scope unit that is used to observe an interior of a specimen subject, and a main body unit that controls the scope unit by communicating with the scope unit. The scope unit has an insertion portion, a bending portion that is provided on the insertion portion, a bending drive unit that drives the bending portion, an imaging unit that is provided on the insertion portion and acquires images of the specimen subject; and a structure storage section in which structure identification information that is based on the structure of the first scope unit is stored. The main body unit has a display unit that displays images acquired by the imaging unit, an operating section that is used to make operation inputs to operate at least the bending portion, and a control unit that controls the bending drive unit based on the structure identification information stored in the storage section.
    Type: Application
    Filed: October 21, 2010
    Publication date: May 12, 2011
    Applicant: OLYMPUS CORPORATION
    Inventors: Takakazu ISHIGAMI, Ayumu INADA
  • Publication number: 20110034773
    Abstract: The endoscope apparatus of the present invention includes: an insertion portion having a bending portion; an observation device that is provided at the insertion portion; an illumination unit that is provided at the insertion portion, and that illuminates a visual field of the observation device; a main body unit that is formed having a size that enables it to be held and operated by one hand of a user; an operating section that is used to operate the bending portion; a display unit that is connected to the insertion portion, and that displays images acquired by the observation device; a light emitting component that is provided in the main body unit, and that is connected via a light guide to the illumination unit; a heat discharge unit that is provided at the main body unit such that at least a portion thereof is exposed, and that is thermally connected to the light emitting component; and a shielding portion that is provided at the main body unit, and that covers at least a portion of the periphery of the
    Type: Application
    Filed: August 9, 2010
    Publication date: February 10, 2011
    Applicant: Olympus Corporation
    Inventors: Takakazu ISHIGAMI, Ayumu INADA
  • Publication number: 20100217084
    Abstract: An adapter-type endoscope includes a distal end adapter and an insertion portion. The distal end adapter includes a light-emitting device substrate and an adapter-side electrical connection portion. The insertion portion includes a distal end portion to which the distal end adapter is detachably mounted, and has an insertion portion-side electrical connection portion connected to an adapter-side electrical connection portion, and a dual-purpose wire for power supply and heat release serving as both a heat releasing wire and a power source wire. The adapter-side electrical connection portion includes an electrical connection portion main body serving as both an electrical connection portion and a heat conducting portion and whose distal end surface closely contacts the light-emitting device substrate.
    Type: Application
    Filed: February 12, 2010
    Publication date: August 26, 2010
    Inventor: Takakazu ISHIGAMI
  • Publication number: 20080300457
    Abstract: An endoscope is provided capable of performing excellent observation for a long time by preventing decrease in light amount and generation of image noise caused by heat generated by an LED illumination even in a case where a distal-end adapter configured of the LED illumination is arranged at the distal end portion of the insertion unit. One end portion of a heat-radiating member configured of a plurality of elongated wires is arranged in the vicinity of a light emitting device, on the other hand, the other end portion of the heat-radiating member is arranged at a predetermined position on a proximal end side of an insertion unit, and a binding member for binding the wires of the heat-radiating member is provided on a side in the vicinity of the light emitting device of the heat-radiating member.
    Type: Application
    Filed: July 22, 2008
    Publication date: December 4, 2008
    Applicant: Olympus Corporation
    Inventors: YOICHI HOSAKA, Takakazu Ishigami, Yasundo Tanaka
  • Patent number: 7104951
    Abstract: According to the present invention, an endoscope system having an insertion member thereof wound about a drum comprises an electronic endoscope, a drum, an angling input unit, a motor-driven angling unit, a camera control unit, a motor-driven angling control circuit unit, and a stowage case. A bending section included in an insertion member of the electronic endoscope is motor-driven to bend, and a solid-state imaging device is incorporated at the tip of the insertion member. The insertion member is wound about the periphery of the drum. The angling input unit is separated from the electronic endoscope, and used to enter a direction of bending in which a user wants to bend the bending section. The motor-driven angling unit is incorporated in the drum, and includes a driving source for driving a driving mechanism that drives the bending section.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: September 12, 2006
    Assignee: Olympus Corporation
    Inventors: Hiroshi Hasegawa, Seiji Kimura, Nobuyuki Saruya, Shinji Fujikawa, Takakazu Ishigami, Masahiro Kumakura, Yasufumi Shimoe
  • Publication number: 20060183977
    Abstract: An endoscope includes light emitting devices arranged in the distal end portion of its insertion unit, and at least one elongated heat-radiating member. One end of the radiating member is arranged in the vicinity of the light emitting devices and the other end is arranged in a predetermined position adjacent to the proximal end of the insertion unit. In observation using the endoscope, a decrease in the amount of illumination rays or the occurrence of image noise can be prevented, the decrease and the noise being caused due to heat generated by LED illumination lights arranged at the distal end of the insertion unit. Therefore, observation can be performed for a long time in good conditions.
    Type: Application
    Filed: April 6, 2006
    Publication date: August 17, 2006
    Inventors: Takakazu Ishigami, Yoichi Hosaka
  • Patent number: 6846285
    Abstract: According to the present invention, an endoscope system having an insertion member thereof wound about a drum comprises an electronic endoscope, a drum, an angling input unit, a motor-driven angling unit, a camera control unit, a motor-driven angling control circuit unit, and a stowage case. A bending section included in an insertion member of the electronic endoscope is motor-driven to bend, and a solid-state imaging device is incorporated at the tip of the insertion member. The insertion member is wound about the periphery of the drum. The angling input unit is separated from the electronic endoscope, and used to enter a direction of bending in which a user wants to bend the bending section. The motor-driven angling unit is incorporated in the drum, and includes a driving source for driving a driving mechanism that drives the bending section.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: January 25, 2005
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Hiroshi Hasegawa, Seiji Kimura, Nobuyuki Saruya, Shinji Fujikawa, Takakazu Ishigami, Masahiro Kumakura, Yasufumi Shimoe
  • Patent number: 6793622
    Abstract: An electric bending endoscope having a traction-member operating device according to the present invention has traction members each of whose one end portion is fixed to and extends from a distal end portion of a long and narrow inserting portion, a pulley forming multiple peripheral recesses in which middle parts of the traction members are wound and are located in predetermined states, respectively, a motor for rotating, in a predetermined direction, the pulley in the state where the traction members are wound and are located, an arm member having a plurality of arm members to which base end portions of the traction members wound and located in the peripheral recesses of the pulley and extended therefrom are fixed, and an operation instructing lever to which the arm member is integrally fixed and having an operating portion for changing a slanting direction and a slanting amount to instruct to move a predetermined traction member from the plurality of traction members by a predetermined amount.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: September 21, 2004
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Yutaka Konomura, Yasuo Hirata, Takakazu Ishigami
  • Patent number: 6752758
    Abstract: An operational remote controller integrates a joystick for bending a bending portion of an inserted portion in an endoscope. A bending lever stands on the joystick. For every automatically returning of the bending lever to a neutral position, a CPU of the operational remote controller detects the neutral position and sets an insensitive band within a predetermined range of the neutral position. Thus, the insensitive band can be set within a relatively narrow range irrespective of variation of neutral positions. The CPU supplies positional information of the bending lever to a control circuit for controlling a motor drive circuit. The control circuit controls a motor drive circuit based on the supplied positional information, and the motor drive circuit drives a motor to bend the bending portion of the inserted portion.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: June 22, 2004
    Assignee: Olympus Corporation
    Inventors: Nobuyuki Motoki, Mitsunobu Ono, Takakazu Ishigami, Hiroyuki Fukuda, Yoshihiro Hayashi, Kenji Murakami, Yasufumi Shimoe
  • Publication number: 20030195389
    Abstract: An operational remote controller integrates a joystick for bending a bending portion of an inserted portion in an endoscope. A bending lever stands on the joystick. For every automatically returning of the bending lever to a neutral position, a CPU of the operational remote controller detects the neutral position and sets an insensitive band within a predetermined range of the neutral position. Thus, the insensitive band can be set within a relatively narrow range irrespective of variation of neutral positions. The CPU supplies positional information of the bending lever to a control circuit for controlling a motor drive circuit. The control circuit controls a motor drive circuit based on the supplied positional information, and the motor drive circuit drives a motor to bend the bending portion of the inserted portion.
    Type: Application
    Filed: April 15, 2003
    Publication date: October 16, 2003
    Applicant: OLYMPUS OPTICAL CO., LTD.
    Inventors: Nobuyuki Motoki, Mitsunobu Ono, Takakazu Ishigami, Hiroyuki Fukuda, Yoshihiro Hayashi, Kenji Murakami, Yasufumi Shimoe
  • Patent number: 6569086
    Abstract: An operational remote controller integrates a joystick for bending a bending portion of an inserted portion in an endoscope. A bending lever stands on the joystick. For every automatically returning of the bending lever to a neutral position, a CPU of the operational remote controller detects the neutral position and sets an insensitive band within a predetermined range of the neutral position. Thus, the insensitive band can be set within a relatively narrow range irrespective of variation of neutral positions. The CPU supplies positional information of the bending lever to a control circuit for controlling a motor drive circuit. The control circuit controls a motor drive circuit based on the supplied positional information, and the motor drive circuit drives a motor to bend the bending portion of the inserted portion.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: May 27, 2003
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Nobuyuki Motoki, Mitsunobu Ono, Takakazu Ishigami, Hiroyuki Fukuda, Yoshihiro Hayashi, Kenji Murakami, Yasufumi Shimoe
  • Publication number: 20030092965
    Abstract: An electric bending endoscope having a traction-member operating device according to the present invention has traction members each of whose one end portion is fixed to and extends from a distal end portion of a long and narrow inserting portion, a pulley forming multiple peripheral recesses in which middle parts of the traction members are wound and are located in predetermined states, respectively, a motor for rotating, in a predetermined direction, the pulley in the state where the traction members are wound and are located, an arm member having a plurality of arm members to which base end portions of the traction members wound and located in the peripheral recesses of the pulley and extended therefrom are fixed, and an operation instructing lever to which the arm member is integrally fixed and having an operating portion for changing a slanting direction and a slanting amount to instruct to move a predetermined traction member from the plurality of traction members by a predetermined amount.
    Type: Application
    Filed: September 4, 2002
    Publication date: May 15, 2003
    Inventors: Yutaka Konomura, Yasuo Hirata, Takakazu Ishigami
  • Patent number: 6371907
    Abstract: A cylindrical surface on which an insertion portion where a curving portion is provided is wound for containing is formed in a drum portion rotatably supported by a fulcrum. Inside the cylindrical surface, an electric drive unit such as motors moving back and forth manipulation wires transmitting driving forces curving the curving portion is contained. By instructing a curving direction with a joy stick provided through a cable outside the drum portion, the curving portion is curved in a desired direction through the electric drive unit. A monitor displaying an image to be observed through a cable is located outside the drum portion.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: April 16, 2002
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Hiroshi Hasegawa, Takakazu Ishigami, Nobuyuki Motoki, Yutaka Konomura