Patents by Inventor Tadashi Munakata

Tadashi Munakata 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: 6488124
    Abstract: In an elevator, a driving unit is installed at the top of an elevator shaft above a counterweight. Traction sheaves engage with ropes and are rotated by the driving device. These traction sheaves are positioned close to wall surfaces of the elevator shaft, that are adjacent to its wall surface facing the counterweight. The traction sheaves are also positioned outside the horizontally projected plane of a car.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: December 3, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kunio Yasuda, Yoshiaki Fujita, Kosei Kamimura, Ikuo Asami, Yasuyuki Wagatsuma, Kiyoshi Kobayashi, Tadashi Munakata, Shin Murakami, Yoshinobu Ishikawa, Takeshi Miyata, Mitsuo Hayase
  • Patent number: 6390243
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: May 21, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Patent number: 6382360
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: May 7, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Publication number: 20010009211
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Application
    Filed: March 26, 2001
    Publication date: July 26, 2001
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Publication number: 20010009210
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Application
    Filed: March 26, 2001
    Publication date: July 26, 2001
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Publication number: 20010009209
    Abstract: An elevator apparatus is provided with an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave 1 and a driving mechanism 2 is positioned between an inner wall 3a of the elevator path 3 and a space occupied by an elevator car 4 rising and falling in the elevator path 3. One end of a suspension rope 7 is fixed to the elevator car 4 in a position below a ceiling 4c of the elevator car 4. With the arrangement, the car 4 can move close to the ceiling 4c of the elevator car 4 effectively. Further, it is possible to reduce respective heights of the elevator path 3 and a building equipped with the elevator apparatus.
    Type: Application
    Filed: March 26, 2001
    Publication date: July 26, 2001
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Patent number: 6247557
    Abstract: An elevator apparatus including an elevator path having a restricted height. Under a roping ratio of 1:1, a thin driving unit having a traction sheave and a driving mechanism is positioned between an inner wall of the elevator path and a space occupied by an elevator car rising and falling in the elevator path. One end of a suspension rope is fixed to the elevator car in a position below a ceiling of the elevator car. With the arrangement, the car can move close to the ceiling of the elevator car effectively. Further, it is possible to reduce respective heights of the elevator path and a building equipped with the elevator apparatus.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: June 19, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kiyoshi Kobayashi, Tadashi Munakata, Kosei Kamimura, Yasuyuki Wagatsuma, Hisao Yamamoto, Koji Yajima
  • Patent number: 6141862
    Abstract: An apparatus for disassembling and assembling a gas turbine combustor comprises a hand assembly for holding a combustor component of a gas turbine, an inserting and drawing section which supports the hand assembly and moves the same in parallel to a central axis of the combustor component and a retainer for securing the inserting and drawing section onto a casing which constitutes an outer section of the gas turbine.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: November 7, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroshi Matsui, Yoshinobu Ishikawa, Tadashi Munakata, Yoshikata Kobayashi, Takeshi Takahara, Yoshihiko Nakada, Yukio Someya
  • Patent number: 5969531
    Abstract: The inspection apparatus for inspecting performance of a structure such as stator windings of an electric rotating machine of the invention comprises a probe including a measuring element, an arm unit and a cylinder face circumferential moving apparatus. The arm unit has an arm link section supporting the probe (mainly comprising a leading end link assembly and an arm posture keeping mechanism), an arm housing section (mainly comprising a guide rail) regarding driving of this arm link section, and an arm driving mechanism. The arm driving mechanism causes the leading end link assembly to project from the guide rail at an angle toward a measuring position side of the stator windings relative to the axial direction of the rotor unit, while causing the arm link section to travel along the guide rail. The arm posture keeping mechanism is provided with a link wire and a spring, and maintains a straight arm posture of the leading end link assembly after projection from the guide rail.
    Type: Grant
    Filed: March 5, 1997
    Date of Patent: October 19, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shin Murakami, Tadashi Munakata, Norihito Togashi, Satoshi Suzuki, Sueyoshi Mizuno, Yoshikata Kobayashi, Satoshi Irie, Masanori Sotodate, Katsune Zaitsu, Shinji Takahashi, Hideyuki Shimada
  • Patent number: 5950805
    Abstract: This invention provides a convey apparatus capable of conveying a convey target without locally applying an excessive force to it. The convey apparatus includes a convey portion and a medium pressure switching unit. The convey portion has a plurality of medium passages for passing a medium therethrough, and at least part of the surface of the convey portion is made of an elastic material. The diameters of the medium passages can be freely increased/decreased. The medium pressure switching unit controls the pressures of a medium supplied to the respective medium passages of the convey portion to increase or decrease the diameters of the medium passages, thereby generating a carrier wave on the surface of the convey portion.
    Type: Grant
    Filed: October 29, 1996
    Date of Patent: September 14, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshinobu Ishikawa, Tadashi Munakata
  • Patent number: 5417542
    Abstract: A method and an apparatus for carrying a workpiece for improving efficiency in a workpiece carrying operation. In the apparatus, a moving member having a workpiece holding member is driven with a linear motion in a horizontal plane along a carrier passage, and the workpiece holding member is driven with a revolutional motion in a vertical plane around a revolution axis displaced from a center of the workpiece holding member, while the workpiece holding member maintains an orientation in which a holder holding the workpiece points downwards. The holder of the workplece holding member is controlled to sequentially carry out holding of the workpiece and releasing of the workpiece at lowest positions of the workpiece holding member in the revolutional motion, so as to realize a continuous workpiece carrying operation.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: May 23, 1995
    Assignees: Japan Tobacco, Kabushiki Kaisha Toshiba
    Inventors: Hisao Suzuki, Kazuhiro Tokitsu, Makoto Kasahara, Kiyoe Imai, Kouichi Yumita, Tadashi Munakata, Yoshinobu Ishikawa, Etuo Minamihama, Takatomo Izume, Yasuharu Ujiie, Masamichi Kato
  • Patent number: 5331731
    Abstract: A work mounting apparatus according to the present invention comprises a rotating drum divided into upper and lower drums, a head unit arranged on the outer periphery of the rotating drum or the lower drum, a circular work head attached to the head unit, and a suction nozzle protruding from the outer peripheral surface of the work head toward a workbench. While the lower drum is rotating, the suction nozzle of the work head repeats cycloid motion along the workbench with its posture or orientation kept fixed with respect to the workbench. While repeating the cycloid motion, the nozzle receives a work from a work feeder of the workbench by suction, and mounts the work on a printed board on the workbench. The work mounting apparatus further includes a balance weight for the work head, and a friction brake for applying a frictional force to the turning shaft of the work head, to thereby stabilize the turning motion of the work head.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: July 26, 1994
    Assignees: Japan Tobacco Inc., Kabushiki Kaisha Toshiba
    Inventors: Hisao Suzuki, Kazuhiro Tokitu, Tadashi Munakata, Yoshinobu Ishikawa, Takatomo Izume, Masamichi Kato, Etuo Minamihama
  • Patent number: 5285484
    Abstract: A remote control apparatus for maintaining a tokamak type nuclear fusion reactor comprises a rail having a plurality of arcuated links to be extended in a circumferential direction and a plurality of joints for pivotally connecting the adjacent arcuated links, a vehicle running on the rail extended so as to form a continuous arc with its center substantially coinciding with the center of the torus space, and at least one handling device mounted on the vehicle, for handling the in-vessel components. The remote control apparatus is further provided with a rail housing device for receiving the arcuated links in a folded state when they are not in use, a rail mounting device for sending out said arcuated links in succession into the torus space, extending them so that they form a continuous arc and supporting the arcuated link on the proximal end of the rail, and a rail supporting device for supporting the central portion of the rail extended in the torus space.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: February 8, 1994
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kiyoshi Shibanuma, Shin Murakami, Tadashi Munakata, Yoshinobu Ishikawa
  • Patent number: 5274908
    Abstract: A work or component mounting apparatus according to the present invention comprises a rotating drum arranged above a workbench and divided into upper and lower drums, a head unit detachably mounted to the lower drum of the rotating drum, a circular work head (or, in other words, a component head) attached to the head unit, a suction nozzle protruding from the outer peripheral surface of the work head toward the workbench, and a controller housed in the upper drum of the rotating drum for controlling the turning motion of the work head and the supply of suction pressure to the suction nozzle. While the lower drum is rotating, the suction nozzle of the work head repeats cycloid motion along the workbench with its posture kept fixed with respect to the workbench. While repeating the cycloid motion, the nozzle receives a work from a work feeder of the workbench by suction, and mounts the work on a printed board on the workbench.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: January 4, 1994
    Assignees: Japan Tobacco Inc., Kabushiki Kaisha Toshiba
    Inventors: Hisao Suzuki, Kouichi Yumita, Kazuhiro Tokitu, Tadashi Munakata, Yoshinobu Ishikawa, Etuo Minamihama, Koji Taira, Yasuharu Ujiie
  • Patent number: 5173248
    Abstract: A remote control apparatus for maintaining a tokamak type nuclear fusion reactor comprises a rail having a plurality of arcuated links to be extended in a circumferential direction and a plurality of joints for pivotally connecting the adjacent arcuated links, a vehicle running on the rail extended so as to form a continuous arc with its center substantially coinciding with the center of the torus space, and at least one handling device mounted on the vehicle, for handling the in-vessel components. The remote control apparatus is further provided with a rail housing device for receiving the arcuated links in a folded state when they are not in use, a rail mounting device for sending out said arcuated links in succession into the torus space, extending them so that they form a continuous arc and supporting the arcuated link on the proximal end of the rail, and a rail supporting device for supporting the central portion of the rail extended in the torus space.
    Type: Grant
    Filed: February 12, 1991
    Date of Patent: December 22, 1992
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kiyoshi Shibanuma, Shin Murakami, Tadashi Munakata, Yoshinobu Ishikawa
  • Patent number: 4797061
    Abstract: A multi-jointed robot of high-speed and high-precision motion with reduced stress is disclosed. This robot has a first arm which is pivotal on a base, and a second arm which is pivotal on the first arm. The first arm is directly moved by a first motor on the base, while the second arm is moved by a double parallel link mechanism driven by a second motor which has two shafts at its both ends and which is supported on the base.
    Type: Grant
    Filed: February 10, 1987
    Date of Patent: January 10, 1989
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Tadashi Munakata
  • Patent number: 4730975
    Abstract: In an industrial robot of a type having an arm made of a pentagonally connected links, of which an uppermost link is secured to a stationary member so as to be swingable around its axis, the uppermost link is rotated by a first motor, while second and third motors are provided nearby the uppermost link for operating upper links connected to the uppermost link swingably. A wrist base is pivotally connected to the lower ends of lower links to be swingable in a plane defined by the lower links and fourth and fifth motors are also provided nearby the uppermost link for driving, through belts and pulleys, a cross-shaped member pivotally connected to the wrist base and a wrist casing pivotally connected to the wrist base so as to swing around axes perpendicularly to each other.
    Type: Grant
    Filed: April 18, 1986
    Date of Patent: March 15, 1988
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Tadashi Munakata
  • Patent number: 4272781
    Abstract: The disclosed apparatus comprises a movable carriage on which an industrial television camera and nondestructive examining unit or probe are swingably supported. A control means for controlling the carriage, industrial television camera and the probe are also provided as is a monitor television for displaying the result of an examination made by the probe and a video tape recorder.
    Type: Grant
    Filed: September 5, 1979
    Date of Patent: June 9, 1981
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Nobuo Taguchi, Tadashi Munakata, Yoshikata Kobayashi