Patents by Inventor Yusaku Azuma

Yusaku Azuma 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: 5868545
    Abstract: A method for stocking a plurality of containers in a stocking device and feeding one container at a time to a robot includes the steps of separately supporting each container in a vertically moveable frame and moving the frame to align a selected container at a drawing position. The selected container is withdrawn from the frame and a lid of a pallet on the withdrawn frame is removed. The articles are then supplied to the robot.
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: February 9, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shozo Kasai, Takeo Tanita, Masateru Yasuhara, Yusaku Azuma, Toshihiro Yamamoto, Norio Nikaido, Ryohei Inaba, Mitsuo Arai
  • Patent number: 5513946
    Abstract: A clean robot capable of a linear conveying motion comprises a base, a first arm rotatably supported by the base, a second arm rotatably supported by the first arm, and a third arm rotatably supported by the second arm. Also provided are a first driving unit for rotating the first arm with respect to the base in a first rotational direction at a first angular velocity, a second driving unit for rotating the second arm with respect to the first arm in a second rotational direction reverse to the first rotational direction at a doubled angular velocity of the first angular velocity, and a third driving unit for rotating the third arm with respect to the second arm in the first rotational direction at the first angular velocity.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: May 7, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiro Sawada, Yusaku Azuma, Masateru Yasuhara
  • Patent number: 5503516
    Abstract: A method for feeding articles to a robot comprises the steps of temporarily storing a plurality of containers in a temporary storing device including a rest on which the plurality of containers are stacked and a separator for simultaneously separating the stacked containers from each other, stocking a plurality of containers supplied from the temporary storing device in a stocker, and feeding the stocked containers to the robot one-by-one.
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: April 2, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shozo Kasai, Takeo Tanita, Masateru Yasuhara, Yusaku Azuma, Toshihiro Yamamoto, Norio Nikaido, Ryohei Inaba, Mitsuo Arai
  • Patent number: 5470193
    Abstract: In a pallet supply apparatus, pallets are stacked on a loaded pallet elevator and are conveyed by the elevator to the upper end position of a main body of the pallet supply apparatus. The uppermost pallet is separated from the remaining pallets by a shutter. A left side flange of the pallet is pushed by a left roller in a direction to approach rear and side reference surfaces, and a right side flange of the pallet is then pushed by a right roller in a direction to separate away from the side reference surface and to approach the rear reference surface, thus positioning the pallet. When all works are picked up, and the pallet becomes empty, the right and left rollers are escaped, and thereafter, the pallet is slidably moved toward an empty pallet elevator.
    Type: Grant
    Filed: June 4, 1993
    Date of Patent: November 28, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshihiko Miura, Yusaku Azuma
  • Patent number: 5431086
    Abstract: A method of controlling a cylinder apparatus includes the steps of supplying compressed air of a first high pressure to one chamber of a cylinder which is divided into two chambers by a piston, and exhausting air from the other chamber so as to move the piston from the start position at an end portion of one chamber toward an end position at an end portion of the other chamber along the extending direction of the cylinder, and detecting if the position has passed the position of a sensor. In addition, a moving speed of the piston is decreased by supplying air of a second high pressure lower than the first high pressure to the other chamber after an elapse of a predetermined wait time from when the piston has passed the position of the sensor, so that the piston reaches the end position in a shock-free state.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: July 11, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masatoshi Morita, Yusaku Azuma
  • Patent number: 5425133
    Abstract: A robot apparatus includes a robot arm, a robot hand, an electrical/electronic device mounted on the robot hand for operating the robot hand, and a hand attaching/detaching device, arranged between the robot arm and the robot hand, for detachably mounting the robot hand on the robot arm. A signal transmission path, is connected to an external robot controller at one end thereof and to the electrical/electronic device at the other end thereof, extends through the hand attaching/detaching device, and is able to be disconnected between the robot hand side and the robot arm side in the hand attaching/detaching device.
    Type: Grant
    Filed: August 4, 1993
    Date of Patent: June 13, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masateru Yasuhara, Hiroyuki Kigami, Katsumi Ishihara, Yusaku Azuma, Teiji Oosaka
  • Patent number: 5380138
    Abstract: An article feeding apparatus which feeds articles from a feed source to a section to be subjected to feeding includes a stocker for stocking a plurality of pallets retaining a plurality of articles in units of types of articles, with the stocker being capable of moving one pallet to a predetermined position, and a take-out unit for taking the pallet moved to the predetermined position outside the stocker in order to transfer articles to the section to be subjected to feeding. In addition, a buffer receives replacement of the pallets retaining the articles from external equipment and temporarily stores the plurality of pallets, and a replacing unit replaces the pallets in the stocker with the pallets in the buffer in accordance with a decrease in number of articles in the pallet in the stocker to a predetermined value as the articles are fed to the feeding section.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: January 10, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shozo Kasai, Takeo Tanita, Masateru Yasuhara, Yusaku Azuma, Toshihiro Yamamoto, Norio Nikaido, Ryohei Inaba, Mitsuo Arai
  • Patent number: 5350269
    Abstract: A work pick-up apparatus which picks up an object work out of a plurality of works held on a container case through visual recognition of the position of the object work by a visual sensor. The apparatus comprises: a memory circuit for storing shape characteristic information concerning the shape characteristic of the object work; an input circuit for externally inputting approximate position information representing an approximate position of the object work on the case, the approximate position information being expressed in terms of a coordinate system associated with the work pick-up apparatus; and a measuring circuit for measuring the pick-up position of the work in terms of the coordinate system associated with the pick-up apparatus, by processing the image information concerning the work obtained through the visual sensor in accordance with the approximate position information and the shape characteristic information.
    Type: Grant
    Filed: January 15, 1992
    Date of Patent: September 27, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yusaku Azuma, Katsumi Ishihara, Masaru Shibata
  • Patent number: 5313401
    Abstract: A mounting system having a function of picking up one of several different type works from a pickup position where the works having the different types are selectively fed, and of moving a picked up work to an insertion position so as to mount the work on a printed circuit board. The mounting system includes a rotary member arranged to be rotatable, head mechanisms having different types and mounted on the rotary member, the head mechanisms having a number of types corresponding to that of the types of the works, a memory for storing a pickup order and an insertion order in units of types of works, a driver for rotating and stopping the rotary member at predetermined angles, and a control device for preferentially driving the head mechanism to the pickup or insertion position.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: May 17, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shozo Kasai, Yusaku Azuma, Yasushi Aoki, Makoto Akahira, Takeshi Yakou, Katsumi Ishihara
  • Patent number: 5289625
    Abstract: There is disclosed an apparatus and a method for feeding articles, the apparatus containing a tape transporting apparatus, including a transporting member having plural containing portions in succession, a cover tape for covering the apertures of the containing portions of the transporting member, a first reel for simultaneously winding the transporting member and the cover tape, a second reel for winding the transporting member only, a third reel for winding the cover tape only, a drive assembly for rotating the first, second and third reels, intermittent drive unit for driving the transporting member, control unit for driving the drive assembly and intermittent drive unit, an aperture for loading or removing the articles into or from the containing portions of the transporting member, a first detector for detecting the presence or absence of the article in the containing portion, and a guide member for defining the position to an article assembling apparatus or an article manufacturing apparatus, wherein ea
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: March 1, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Sachio Umetsu, Toshio Tsuda, Yusaku Azuma, Toshihiko Miura, Katsumi Ishihara, Teiji Ohsaka
  • Patent number: 5271292
    Abstract: An industrial robot is provided with a body, a horizontal arm pivotally supported on the body, and a vertical arm mounted on the tip end portion of the horizontal arm for rotation about its own center axis. The robot includes a drive motor for rotatively driving the vertical arm, speed reduction means for speed-reducing and transmitting the drive force of the drive motor through a first output pulley to a second output pulley, and first and second detected portions mounted on the first and second output pulleys, respectively, with respective predetermined ranges of extension and indicating the original point position of the vertical arm by the difference between the respective phases.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: December 21, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiro Sawada, Takeo Tanita, Yusaku Azuma, Yasuo Karube
  • Patent number: 5265490
    Abstract: An orthogonal two-axis moving apparatus is provided with a first guide member extending along a vertical direction, a second guide member mounted on the first guide member for movement along the vertical direction and extending along a horizontal direction, and a slide block mounted on the second guide member for movement along the horizontal direction. A timing belt having its opposite ends fixed to the slide block is passed over first and second drive rollers rotatably mounted on the opposite ends of the first guide member and rotatively driven by first and second motors, four idle rollers rotatably supported on one end of the second guide member and two idle rollers rotatably supported on the other end of the second guide member, and a driven roller rotatably supported on the slide block.
    Type: Grant
    Filed: March 18, 1992
    Date of Patent: November 30, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yusaku Azuma, Hiroyuki Kigami, Yasuhiro Sawada
  • Patent number: 5232331
    Abstract: A method for stocking a plurality of containers in a stocking device and feeding one container at a time to a robot includes the steps of separately supporting each container in a vertically moveable frame and moving the frame to align a selected container at a drawing position. The selected container is withdrawn from the frame and a lid of a pallet on the withdrawn frame is removed. The articles are then supplied to the robot.
    Type: Grant
    Filed: March 13, 1991
    Date of Patent: August 3, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shozo Kasai, Takeo Tanita, Masateru Yasuhara, Yusaku Azuma, Toshihiro Yamamoto, Norio Nikaido, Ryohei Inaba, Mitsuo Arai
  • Patent number: 5203661
    Abstract: A handling device for a stocker, for storing various articles or containers, has a pair of engaging members for storing or extracting the articles, in which the engaging members have unbalanced engaging forces and the articles are aligned in one direction by the unbalanced engaging forces.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: April 20, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeo Tanita, Masateru Yasuhara, Shozo Kasai, Yusaku Azuma, Toshihiro Yamamoto, Norio Nikaido, Toshio Tsuda
  • Patent number: 5203748
    Abstract: A planetary roller speed reducer includes a sun roller mounted rotatably on a pedestal and a plurality of planetary rollers having a central portion with a narrowed diameter and mounted rotatably on the pedestal. The sun roller circumscribes large-diameter portions of the planetary rollers which work as a first reduction part, and an outer ring working as an output shaft circumscribes a small-diameter portion working as a second reduction part. A rotary driving system comprises a support fixed to the pedestal and disposed within the outer ring on an extension of the sun roller, and a turning angle detector fixed to the outer ring detects a turning angle between the support and the outer ring.
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: April 20, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiro Sawada, Yusaku Azuma, Takeo Tanita, Yasuo Karube, Teiji Ohsaka
  • Patent number: 5198736
    Abstract: A technique of this invention discloses an orthogonal two-axis moving apparatus basically adapted to move in horizontal and vertical directions. In one embodiment the apparatus includes a vertical block, a horizontal moving member movably supported on the vertical block, and a driving mechanism for moving the horizontal moving member, a driving pulley, a driven pulley, and a belt for transmitting a driving force.
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: March 30, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yusaku Azuma, Katsumi Ishihara, Takeo Tanita, Hiroyuki Kigami
  • Patent number: 5165165
    Abstract: A parts inserting apparatus of this invention includes clinch elements arranged to be engaged with lead wires of an electronic part inserted into a printed circuit board, a detecting unit for detecting completion of insertion of the lead wires into the printed circuit board, a driving unit, connected to the clinch elements, for engaging the clinch elements with the lead wires to bend the lead wires, and a control unit for driving the driving unit to perform a clinch operation for bending the lead wires after the detecting unit detects completion of insertion of the lead wires.
    Type: Grant
    Filed: June 1, 1990
    Date of Patent: November 24, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasushi Aoki, Shozo Kasai, Takeshi Yakou, Yusaku Azuma
  • Patent number: 5125149
    Abstract: An assembly (machining) apparatus and method for performing assembly or machining of an article. A first article supply device including a plurality of supply devices for supplying articles and a first robot for picking up the articles from the first article supply device to perform the assembly or machining are paired as an assembly unit, and a plurality of the assembly units are aligned. The apparatus also includes a buffer device for adjusting a difference in article assembly or machining time between the plurality of assembly units.
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: June 30, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryohei Inaba, Sachio Umetsu, Toshihiko Miura, Yusaku Azuma
  • Patent number: 5117761
    Abstract: A base plate positioning mechanism in an electronic part mounting apparatus wherein a part supplying position and a mounting position are fixed, characterized in that a friction driving mechanism is used in a rotative driving unit for setting the rotated positions of an electronic part and a base plate to predetermined angles in order to adjust the part mounting position of the base plate to the fixed mounting position.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: June 2, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shozo Kasai, Yusaku Azuma, Yasushi Aoki, Makoto Akahira, Takeshi Yakou, Suguru Onuma
  • Patent number: 5090113
    Abstract: There is disclosed an apparatus for feeding articles, containing a tape transporting apparatus, including a transporting member having plural container portions in succession, a cover tape for covering the apertures of the container portions of the transporting member, a first reel on which ends of the transporting member and the cover tape are fixed, for simultaneously winding the transporting member and the cover tape, a second reel on which the other end of the transporting member is fixed, for winding the transporting member only, a third reel on which the other end of the cover tape is fixed, for winding the cover tape only, a drive assembly for rotating the first, second and third reels, intermittent drive unit for intermittently driving the transporting member by engaging with successive perforations formed on the transporting member, a control unit for driving the drive assembly and intermittent drive unit, an aperture for loading or removing the articles into or from the container portions of the tra
    Type: Grant
    Filed: April 3, 1990
    Date of Patent: February 25, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Sachio Umetsu, Toshio Tsuda, Yusaku Azuma, Toshihiko Miura, Katsumi Ishihara, Teiji Ohsaka