Patents by Inventor Tatsuji Minato

Tatsuji Minato 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: 20200189126
    Abstract: A mechanical stopper device wherein a fixed body includes a fixing-side stopper, including: a lever that can swing about a supporting shaft provided to the fixed body; and a pair of elastic bodies, attached to the fixed body, on both sides in the lever swinging direction, and which can contact with both side surfaces of the lever. Further, a rotating body includes a stopper pin that can be in contact with both the side surfaces of the lever. The ratio between a distance (a) from a supporting point of the lever to a contact position where the lever and the stopper pin are in contact with each other, and a distance (b) from the supporting point of the lever to a contact position where the lever and the elastic bodies are in contact with each other is 1.05?a/b?2.30, and thickness (D) of the elastic bodies is 20 mm?D?40 mm.
    Type: Application
    Filed: September 8, 2017
    Publication date: June 18, 2020
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Taichi IGARASHI, Yuki SHIKA, Motoaki MURAKAMI, Yasuharu SAKURAI, Tatsuji MINATO
  • Publication number: 20190329428
    Abstract: A harness connection structure has a first arm; a second arm which has a base side that is rotatably coupled to the first arm via an arm joint; and a harness that extends from a leading end of the first arm and is guided into an arm interior at the arm joint. The leading end of the first arm has a harness holding part that holds one longitudinal side of the harness. The arm joint has a harness fixing part that fixes the other longitudinal side of the harness inside the arm joint. The harness fixing part is disposed such that the harness is inclined from the longitudinal axis of the second arm toward the leading end of the first arm.
    Type: Application
    Filed: January 15, 2018
    Publication date: October 31, 2019
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Yasuharu SAKURAI, Yuki SHIKA, Motoaki MURAKAMI, Taichi IGARASHI, Tatsuji MINATO
  • Publication number: 20190321906
    Abstract: Provided is an articulated welding robot that includes an articulated arm in which a plurality of arm parts are linked via a drive shaft. A welding wire is disposed along the articulated arm. In at least one of the arm parts a depression is formed that forms a hollow on the inner side of the arm. At least a portion of the welding wire is accommodated in the depression.
    Type: Application
    Filed: January 15, 2018
    Publication date: October 24, 2019
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Yasuharu SAKURAI, Yuki SHIKA, Motoaki MURAKAMI, Taichi IGARASHI, Tatsuji MINATO
  • Publication number: 20190275685
    Abstract: An industrial robot includes a lower arm portion including: a pair of proximal-end-side support parts; a pair of distal-end-side support parts; and a housing which integrally supports the proximal-end-side support parts and the distal-end-side support parts. The housing houses a first drive motor, a second drive motor, a first power transmission mechanism, a second power transmission mechanism, and a cable bundle. In the housing, the first power transmission mechanism and the second power transmission mechanism are disposed on an axial end side of either a first joint shaft or a second joint shaft, and the cable bundle is disposed on an axial end side of the other joint shaft.
    Type: Application
    Filed: December 5, 2017
    Publication date: September 12, 2019
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Motoaki MURAKAMI, Tatsuji MINATO
  • Publication number: 20190047073
    Abstract: A welding apparatus includes an articulated robot having a plurality of drive shafts, an end effector supported by the articulated robot, a tip shaft drive mechanism, and a drive control unit. The tip shaft drive mechanism is provided between a tip drive shaft of the articulated robot and the end effector and allows a tip shaft of the end effector to perform a weaving operation. The drive control unit drives the articulated robot and the tip shaft drive mechanism. The tip shaft drive mechanism includes a first-axis drive unit which drives the tip shaft in a first-axis direction that is perpendicular to the tip shaft of the end effector and a second-axis drive unit which drives the tip shaft in a second-axis direction that is perpendicular to the tip shaft and the first-axis direction.
    Type: Application
    Filed: February 9, 2017
    Publication date: February 14, 2019
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Yuki SHIKA, Tatsuji MINATO
  • Patent number: 9266185
    Abstract: A shock sensor unit includes first and second sensor shafts having bulging portions, first and second positioning pins in contact with the bulging portions, first and second spring members that press the first and second sensor shafts, first and second sensor bodies that contain the first and second positioning pins movably, and first and second detectors that detect movements of first and second spring guides. Each of the first and second positioning pins is located at two positions that are point-symmetrical with respect to a center point between first and second electrodes.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: February 23, 2016
    Assignee: Kobe Steel, Ltd.
    Inventors: Makoto Kondo, Tatsuji Minato
  • Publication number: 20140231399
    Abstract: Provided is connection fitting and method. The connection fitting is to connect each of two connection portions of a two-electrode-integrated welding torch unit to each of two attachment ports of a shock sensor unit while fixed to the connection portion using tubular fastening parts, comprising: a tubular fitting body including a first end to be connected to the unit and a second end having a spherical shaft-shaped connection portion with first and second partial spherical surfaces to be connected to the connection portion; a first bearing member having a first sliding surface slidable against the first partial spherical surface; a second bearing member having a second sliding surface slidable against the second partial spherical surface. The second bearing member has a sliding contact portion having an outer diameter smaller than an inner diameter of the fastening parts and adapted to slidably contact an end surface of the connection portion.
    Type: Application
    Filed: January 30, 2014
    Publication date: August 21, 2014
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Makoto KONDO, Tatsuji MINATO, Tamami MORISHITA, Shinya ONO
  • Patent number: 8631720
    Abstract: The present invention is characterized by arranging a flow path 200 for supplying driving gas to a tool mounting portion 170 from a robot base 110 to the tool mounting portion 170 through the interiors of a rotation frame 120, a tube 220, a shoulder 140, a swing arm 150 and a tool mounting rotation arm 160.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: January 21, 2014
    Assignees: Daihen Corporation, Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Hiroshi Nakagiri, Sungjae Yoon, Makoto Kondo, Tatsuji Minato
  • Patent number: 8537346
    Abstract: A light emitter 320 is so mounted to a mounting portion 170 provided at a predetermined position of the tool mounting rotation arm 160 that a light beam LB is emitted toward a swing arm 150, the light beam LB is caused to be emitted from the light emitter 320, and the swing arm 150 and the tool mounting rotation arm 160 are so positioned that the light beam LB from the light emitter 320 is irradiated to an allowable range of a light receiving portion 410 for receiving the light beam LB from the light emitter 320.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: September 17, 2013
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Hiroshi Nakagiri, Sungjae Yoon, Tatsuji Minato, Makoto Kondo
  • Patent number: 8434387
    Abstract: The present invention relates to an industrial robot and aims to provide an industrial robot capable of ensuring a long distance from a rotation axis of an arm to a tool mounting portion and accurately positioning the tool mounting portion by a compact structure. In a swing arm 150, the rotation of a tool mounting rotation arm driving motor 311 is transmitted to a pivot shaft 313 via a tool mounting rotation arm driving transmission mechanism 300, the rotation of a tool mounting portion driving motor 411 is transmitted to an intermediate power transmission shaft 422 via a tool mounting portion driving first transmission mechanism 412a, and the rotation of the intermediate power transmission shaft 422 is transmitted to an output power transmission shaft 426 via a tool mounting portion driving second transmission mechanism 412b, thereby rotating a tool mounting portion 170 while being decelerated by a tool mounting portion driving reduction unit 413.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: May 7, 2013
    Assignees: Daihen Corporation, Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Hiroshi Nakagiri, Sungjae Yoon, Makoto Kondo, Tatsuji Minato
  • Patent number: 8272645
    Abstract: A tool replacing device including a case member is disclosed. In the case member, engaging balls supported between a holding member and a movable member is projected into the holding member by an extruding surface of the movable member, resiliently urged by a second spring, thereby allowing a tool to be engaged. By pressing the movable member against a resilient urging force of the second spring, the engaging balls can be moved in the movable member. Also, since there are provided shock sensors for detecting a moving distance of the holding member holding the tool, collision or the like of the tool can be detected. Even if power supply is stopped, the present tool replacing device can hold the tool.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: September 25, 2012
    Assignee: Kobe Steel, Ltd.
    Inventors: Makoto Kondo, Tatsuji Minato
  • Patent number: 8207475
    Abstract: A wire feeding unit for feeding a welding wire in a torch cable of a welding robot, the torch cable passing through the inside of an upper arm in its direction, includes a body member, which is mounted on an inner periphery of the upper arm in a state of being freely pivotable around the axis of the upper arm, and to which the torch cable is installed, and a feed roller mounted to the body member in a state of being freely rotatable around an axis orthogonal to the axis of the arm. Here, the welding wire exposed out of the torch cable is in contact with the circumferential surface of the feed roller and is fed by the rotation of the feed roller in a direction of the axis of the upper arm. According to the configuration like this, when an arm is pivoted, the torch cable passing through the arm is able to be prevented from being twisted.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: June 26, 2012
    Assignee: Kobe Steel, Ltd.
    Inventors: Tatsuji Minato, Makoto Kondo
  • Publication number: 20110252915
    Abstract: The present invention is characterized by arranging a flow path 200 for supplying driving gas to a tool mounting portion 170 from a robot base 110 to the tool mounting portion 170 through the interiors of a rotation frame 120, a tube 220, a shoulder 140, a swing arm 150 and a tool mounting rotation arm 160.
    Type: Application
    Filed: March 29, 2011
    Publication date: October 20, 2011
    Applicants: KABUSHIKI KAISHA KOBE SEIKO SHO, DAIHEN CORPORATION
    Inventors: Hiroshi NAKAGIRI, Sungjae Yoon, Makoto Kondo, Tatsuji Minato
  • Publication number: 20110252921
    Abstract: The present invention relates to an industrial robot and aims to provide an industrial robot capable of ensuring a long distance from a rotation axis of an arm to a tool mounting portion and accurately positioning the tool mounting portion by a compact structure. In a swing arm 150, the rotation of a tool mounting rotation arm driving motor 311 is transmitted to a pivot shaft 313 via a tool mounting rotation arm driving transmission mechanism 300, the rotation of a tool mounting portion driving motor 411 is transmitted to an intermediate power transmission shaft 422 via a tool mounting portion driving first transmission mechanism 412a, and the rotation of the intermediate power transmission shaft 422 is transmitted to an output power transmission shaft 426 via a tool mounting portion driving second transmission mechanism 412b, thereby rotating a tool mounting portion 170 while being decelerated by a tool mounting portion driving reduction unit 413.
    Type: Application
    Filed: April 13, 2011
    Publication date: October 20, 2011
    Applicants: KABUSHIKI KAISHA KOBE SEIKO SHO, DAIHEN CORPORATION
    Inventors: Hiroshi NAKAGIRI, Sungjae Yoon, Makoto Kondo, Tatsuji Minato
  • Publication number: 20110252912
    Abstract: A light emitter 320 is so mounted to a mounting portion 170 provided at a predetermined position of the tool mounting rotation arm 160 that a light beam LB is emitted toward a swing arm 150, the light beam LB is caused to be emitted from the light emitter 320, and the swing arm 150 and the tool mounting rotation arm 160 are so positioned that the light beam LB from the light emitter 320 is irradiated to an allowable range of a light receiving portion 410 for receiving the light beam LB from the light emitter 320.
    Type: Application
    Filed: April 13, 2011
    Publication date: October 20, 2011
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO
    Inventors: Hiroshi NAKAGIRI, Sungjae Yoon, Tatsuji Minato, Makoto Kondo
  • Publication number: 20090253563
    Abstract: A tool replacing device including a case member is disclosed. In the case member, engaging balls supported between a holding member and a movable member is projected into the holding member by an extruding surface of the movable member, resiliently urged by a second spring, thereby allowing a tool to be engaged. By pressing the movable member against a resilient urging force of the second spring, the engaging balls can be moved in the movable member. Also, since there are provided shock sensors for detecting a moving distance of the holding member holding the tool, collision or the like of the tool can be detected. Even if power supply is stopped, the present tool replacing device can hold the tool.
    Type: Application
    Filed: February 10, 2009
    Publication date: October 8, 2009
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Makoto KONDO, Tatsuji Minato
  • Publication number: 20090242535
    Abstract: A wire feeding unit for feeding a welding wire in a torch cable of a welding robot, the torch cable passing through the inside of an upper arm in its direction, includes a body member, which is mounted on an inner periphery of the upper arm in a state of being freely pivotable around the axis of the upper arm, and to which the torch cable is installed, and a feed roller mounted to the body member in a state of being freely rotatable around an axis orthogonal to the axis of the arm. Here, the welding wire exposed out of the torch cable is in contact with the circumferential surface of the feed roller and is fed by the rotation of the feed roller in a direction of the axis of the upper arm. According to the configuration like this, when an arm is pivoted, the torch cable passing through the arm is able to be prevented from being twisted.
    Type: Application
    Filed: January 26, 2009
    Publication date: October 1, 2009
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.)
    Inventors: Tatsuji Minato, Makoto Kondo
  • Patent number: D636004
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: April 12, 2011
    Assignee: Kobe Steel, Ltd.
    Inventors: Hiroshi Nakagiri, Sungjae Yoon, Tatsuji Minato, Makoto Kondo
  • Patent number: D636419
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: April 19, 2011
    Assignee: Kobe Steel, Ltd.
    Inventors: Hiroshi Nakagiri, Sungjae Yoon, Tatsuji Minato, Makoto Kondo
  • Patent number: D636803
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: April 26, 2011
    Assignee: Kobe Steel, Ltd.
    Inventors: Hiroshi Nakagiri, Sungjae Yoon, Tatsuji Minato, Makoto Kondo