Patents by Inventor Kazutaka Nakayama

Kazutaka Nakayama 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).

  • Publication number: 20170341239
    Abstract: A robot shares a work space with a person, to perform an operation. The robot includes a shock-absorbing member which covers the periphery of at least a base part of a working tool attached to an robot arm, a detector which is provided for the robot arm, to detect an external force input via the shock-absorbing member, and a robot control device which stops the robot when determining, based on information of the detected external force, that the working tool collides with the person. The external force is transmitted from the working tool to the robot arm, and is detected by the detector.
    Type: Application
    Filed: May 23, 2017
    Publication date: November 30, 2017
    Applicant: FANUC CORPORATION
    Inventor: KAZUTAKA NAKAYAMA
  • Publication number: 20170282379
    Abstract: A robot gripping device has finger parts. Each finger part has a finger part body which is comprised of a plurality of plate-shaped elastic members, a first anti-slip part which is provided at an inside surface of a front end side of the finger part body, and a reinforcing member which is arranged along an outer surface of the finger part body, is connected to the front end of the finger part body, and is higher in rigidity than the finger part body. The reinforcing member has a first rotary joint which makes the reinforcing member pivot about a first axis of rotation which is perpendicular to the longitudinal direction of the finger part body. The robot gripping device has a drive part which makes a base end of the finger part body move along the center of grip to make the finger parts open and close.
    Type: Application
    Filed: March 9, 2017
    Publication date: October 5, 2017
    Applicant: FANUC CORPORATION
    Inventor: Kazutaka Nakayama
  • Publication number: 20170259436
    Abstract: A rotation axis module includes: an actuator which relatively rotates a fixed member and a movable member; a umbilical member which penetrates through the interior of the actuator to extend; a first fixing portion which fixes the umbilical member at a rotation axis of the fixed member or at a position corresponding to the vicinity thereof; a second fixing portion which fixes the umbilical member at an output axis of the movable member or in the vicinity thereof; a first relay portion which is positioned at a side of the fixed member, one end of the umbilical member being connected to the first relay portion; and a second relay portion which is positioned at a side of the movable member, the other end of the umbilical member being connected to the second relay portion.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 14, 2017
    Inventors: Kazutaka NAKAYAMA, Masahiro MORIOKA, Kenichiro ABE
  • Publication number: 20170256050
    Abstract: Provided is an inspection system for a wire electrical discharge machine, capable of automatically performing inspection of a constituent element and the like. The inspection system for a wire electrical discharge machine is provided with the wire electrical discharge machine, a robot for inspecting the constituent element of the wire electrical discharge machine, an image pickup device provided on a movable part of tee robot and configured to image the constituent element, an image processing unit configured to acquire an image of the constituent element by means of the image pickup device, and a maintenance necessity determination unit configured to determine the necessity of maintenance of the constituent element based on the image acquired by the image processing unit.
    Type: Application
    Filed: February 27, 2017
    Publication date: September 7, 2017
    Inventor: Kazutaka NAKAYAMA
  • Publication number: 20170165803
    Abstract: Disclosed is a machining system wherein provisions are made to be able to remove machining chips reliably without requiring human intervention. The machining system includes: an image processing unit which detects the position and amount of machining chips by comparing images captured of a workpiece and a machining tool before and after execution of a machining step; a condition judging unit which, based on the detected amount of machining chips, determines whether or not there is a need to execute a removal step; and a result judging unit which judges the result of the removal step by comparing the images captured of the workpiece W and the machining tool before and after the execution of the removal step.
    Type: Application
    Filed: December 7, 2016
    Publication date: June 15, 2017
    Applicant: FANUC CORPORATION
    Inventor: Kazutaka Nakayama
  • Publication number: 20170057039
    Abstract: A processing system having a function for appropriately maintaining processing accuracy, without depending on a degree of abrasion of a tool. An unused tool used in a machine tool is captured by using a camera mounted on a robot, so as to obtain a reference image of the tool. Next, an image of the tool is captured after a predetermined number of processing operations carried out. An average amount of tool abrasion per one processing operation is calculated based on the two images, so as to estimate a current amount of tool abrasion. Based on the estimation result and a previously input limit amount of abrasion, the number of remaining possible processing operations of the tool is calculated and output.
    Type: Application
    Filed: August 24, 2016
    Publication date: March 2, 2017
    Inventor: Kazutaka NAKAYAMA
  • Publication number: 20170028499
    Abstract: A machine learning device which learns to determine at least one arc welding condition includes a state observation unit which observes a state variable consisting of at least one physical quantity regarding the arc welding and the at least one arc welding condition at least during or after the arc welding, and a learning unit which learns a change in the at least one physical quantity observed by the state observation unit and the at least one arc welding condition in association with each other.
    Type: Application
    Filed: July 28, 2016
    Publication date: February 2, 2017
    Inventors: Shigeo YOSHIDA, Masayoshi MORI, Kazutaka NAKAYAMA
  • Publication number: 20170028562
    Abstract: A machine learning device that learns an operation of a robot for picking up, by a hand unit, any of a plurality of workpieces placed in a random fashion, including a bulk-loaded state, includes a state variable observation unit that observes a state variable representing a state of the robot, including data output from a three-dimensional measuring device that obtains a three-dimensional map for each workpiece, an operation result obtaining unit that obtains a result of a picking operation of the robot for picking up the workpiece by the hand unit, and a learning unit that learns a manipulated variable including command data for commanding the robot to perform the picking operation of the workpiece, in association with the state variable of the robot and the result of the picking operation, upon receiving output from the state variable observation unit and output from the operation result obtaining unit.
    Type: Application
    Filed: July 29, 2016
    Publication date: February 2, 2017
    Inventors: Takashi YAMAZAKI, Takumi OYAMA, Shun SUYAMA, Kazutaka NAKAYAMA, Hidetoshi KUMIYA, Hiroshi NAKAGAWA, Daisuke OKANOHARA, Ryosuke OKUTA, Eiichi MATSUMOTO, Keigo KAWAAI
  • Patent number: 9533417
    Abstract: A human-interactive type robot system which can constantly detect a contact force at a high precision even if the contact force is small, comprising a force sensor which measures a force which the robot receives from the outside and outputs a measurement value, a force detection value calculating part which subtracts a correction value from the measurement value to calculate a force detection value, and a correction value updating part which updates a force detection value when a predetermined condition stands for use as the correction value. The predetermined condition is that the robot is stopped or operating at a fixed speed and a margin of fluctuation of the force detection value at a predetermined unit time is a fluctuation margin threshold value or less or that the robot is stopped and the current force detection value is the force detection value threshold value or less.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: January 3, 2017
    Assignee: FANUC CORPORATION
    Inventors: Kazutaka Nakayama, Takashi Sato
  • Publication number: 20160346935
    Abstract: The human cooperative robot system according to the present invention includes a robot, a force sensor detecting a load applied to a robot, and a robot controller controlling the robot. The force sensor includes at least one temperature detection element detecting temperature, incorporated therein. The robot controller determines whether or not to stop the operation of the robot based on the detected temperature output from the temperature detection element.
    Type: Application
    Filed: May 1, 2016
    Publication date: December 1, 2016
    Inventors: Kazutaka NAKAYAMA, Junya FUJITA, Youichi INOUE
  • Publication number: 20160167231
    Abstract: A human-interactive type robot system which can constantly detect a contact force at a high precision even if the contact force is small, comprising a force sensor which measures a force which the robot receives from the outside and outputs a measurement value, a force detection value calculating part which subtracts a correction value from the measurement value to calculate a force detection value, and a correction value updating part which updates a force detection value when a predetermined condition stands for use as the correction value. The predetermined condition is that the robot is stopped or operating at a fixed speed and a margin of fluctuation of the force detection value at a predetermined unit time is a fluctuation margin threshold value or less or that the robot is stopped and the current force detection value is the force detection value threshold value or less.
    Type: Application
    Filed: November 11, 2015
    Publication date: June 16, 2016
    Inventors: Kazutaka NAKAYAMA, Takashi SATO
  • Publication number: 20160114484
    Abstract: A system which can improve the reliability of an emergency stop operation of a robot when contacting a worker. The system is comprised of a force sensor and a malfunction judgment part. The force sensor has a detection part which detects the load in one direction. The detection part includes a first detection element and a second detection element. The malfunction judgment part judges if a first detection value which is detected by the first detection element and a second detection value which is detected by the second detection element differ from each other. If the first detection value and the second detection value differ from each other, it is judged that the first detection element or second detection element have malfunctioned.
    Type: Application
    Filed: October 22, 2015
    Publication date: April 28, 2016
    Applicant: FANUC CORPORATION
    Inventors: Kazutaka Nakayama, Takatoshi Iwayama
  • Patent number: 9132555
    Abstract: A robot gripping device (60) where each finger part has a finger part body (1) which is comprised of a plate-shaped elastic member, a first anti-slip part (2) which is provided at an inside of a front end side of the finger part body, and a reinforcing member (20) which is arranged along an outer surface of the finger part body, is connected to the front end of the finger part body, and is higher in rigidity than the finger part body, the reinforcing member having a first rotary joint (4) which makes the reinforcing member pivot about a first axis of rotation which is vertical to a longitudinal direction of the finger part body, and the robot gripping device having a drive part (62) which makes a base end of the finger part body move along the center of grip to make the finger part open and close.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: September 15, 2015
    Assignee: Fanuc Corporation
    Inventor: Kazutaka Nakayama
  • Patent number: 9130075
    Abstract: To provide a paste composition capable of forming a silver electrode having a high bond strength and a low contact resistance, and to provide a solar cell endowed with a high conversion efficiency and excellent reliability, the solar cell including an electrode formed using such a paste composition, a silver electrode-forming paste composition includes a silver powder, a glass component and an organic medium, and the glass component includes tellurium-loaded glass frit which is glass frit having a tellurium compound supported on surfaces thereof. This silver electrode-forming paste composition can be produced by a method which includes the steps of: preparing tellurium-loaded glass frit sintering the mixture in the temperature range of (Tm?35°) C. to (Tm+20°) C.; and dispersing the glass component and the silver powder in an organic medium using the tellurium-loaded glass frit as at least part of the glass component.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: September 8, 2015
    Assignee: NORITAKE CO., LIMITED
    Inventors: Tomohisa Koike, Shinji Senda, Masayuki Doizaki, Tsuyoshi Ishimaru, Kazutaka Nakayama
  • Publication number: 20150028613
    Abstract: A robot gripping device (60) where each finger part has a finger part body (1) which is comprised of a plate-shaped elastic member, a first anti-slip part (2) which is provided at an inside of a front end side of the finger part body, and a reinforcing member (20) which is arranged along an outer surface of the finger part body, is connected to the front end of the finger part body, and is higher in rigidity than the finger part body, the reinforcing member having a first rotary joint (4) which makes the reinforcing member pivot about a first axis of rotation which is vertical to a longitudinal direction of the finger part body, and the robot gripping device having a drive part (62) which makes a base end of the finger part body move along the center of grip to make the finger part open and close.
    Type: Application
    Filed: July 24, 2014
    Publication date: January 29, 2015
    Applicant: FANUC CORPORATION
    Inventor: Kazutaka Nakayama
  • Publication number: 20140021417
    Abstract: To provide a paste composition capable of forming a silver electrode having a high bond strength and a low contact resistance, and to provide a solar cell endowed with a high conversion efficiency and excellent reliability, the solar cell including an electrode formed using such a paste composition, a silver electrode-forming paste composition includes a silver powder, a glass component and an organic medium, and the glass component includes tellurium-loaded glass frit which is glass frit having a tellurium compound supported on surfaces thereof. This silver electrode-forming paste composition can be produced by a method which includes the steps of: preparing tellurium-loaded glass frit sintering the mixture in the temperature range of (Tm?35)° C. to (Tm+20)° C.; and dispersing the glass component and the silver powder in an organic medium using the tellurium-loaded glass frit as at least part of the glass component.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 23, 2014
    Inventors: Tomohisa KOIKE, Shinji SENDA, Masayuki DOIZAKI, Tsuyoshi ISHIMARU, Kazutaka NAKAYAMA
  • Patent number: 8288687
    Abstract: An arc welding robot having a welding wire conduit which has a bend radius above a certain level and arranged so that disadvantageous stress is not applied to the conduit by the motion of the robot arm. A conduit for a welding wire is inserted through a hole of a robot pedestal from the rear side of the robot, is supported by a second support member arranged on the pedestal, extends near the front side of a rotating body of the robot, and is supported by a first support member on the upper part of the rotating body while having a required minimum bend radius. The conduit after passing through the first support member is introduced to the rear side of the upper arm and is connected to a connector at the rear side of a wire feeder while having the required minimum radius, whereby the conduit presents a generally S-shape.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: October 16, 2012
    Assignee: FANUC Ltd
    Inventors: Toshihiko Inoue, Kazutaka Nakayama, Takatoshi Iwayama
  • Patent number: 8051741
    Abstract: A managing structure for an umbilical member includes a flexible conduit for leading an umbilical member inserted therein from a front arm of a robot to a working tool mounted on a wrist of the robot, a first conduit mounting portion provided adjacent to the front arm, and a second conduit mounting portion provided adjacent to a point where the umbilical member is connected to the working tool. One end of the conduit is attached to the first conduit mounting portion, while the other end of the conduit is attached to the second conduit mounting portion. The conduit is laid so that a section thereof between the first conduit mounting portion and the second conduit mounting portion does not contact the body of the robot.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: November 8, 2011
    Assignee: FANUC Ltd
    Inventors: Toshihiko Inoue, Kazutaka Nakayama, Takatoshi Iwayama
  • Patent number: 8020466
    Abstract: An umbilical-member processing structure for an industrial robot which includes a forearm having a tool managing and relaying device and a wrist with proximal end rotatably connected to the forearm and having a work tool mounted on the distal end thereof, with an umbilical-member connected to the work tool being disposed to run along the wrist via the tool managing and relaying device: wherein the forearm has a first reduction gear which reduces the rotational speed of a driving source to drive the forearm in rotation; the first reduction gear having a first insertion hole for passing the umbilical-member therein; and wherein the wrist comprises a first wrist element having a through-path in communication with the first insertion hole and rotatably connected to the forearm, and a second wrist element having a second insertion hole in communication with the through-path and rotatably connected to the first wrist element.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: September 20, 2011
    Assignee: FANUC Ltd
    Inventors: Toshihiko Inoue, Kazutaka Nakayama, Takatoshi Iwayama
  • Patent number: 8021821
    Abstract: A photosensitive conductive paste for transferring including a metal powder, an inorganic material powder, a photosensitive resin and a polymerization initiator, and to be applied onto a surface of a transfer support, comprising an acrylic resin or a rosin-based resin.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: September 20, 2011
    Assignee: Noritake Co., Limited
    Inventors: Atsushi Nagai, Kazutaka Nakayama