Patents by Inventor Ichiro Arita

Ichiro Arita 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: 7745758
    Abstract: To provide an arc start method in a consumable electrode type arc welding method capable of firmly executing arc start and capable of executing high quality high speed welding by restraining a welding defect from being brought about therefor, at a portion of a wire projected from a welding tip, a temperature of a front end portion of the wire is made to be at a temperature higher than a temperature of a portion thereof near the welding tip. The front end portion of the wire is preheated to 300° C. or higher, preferably, 450° C. or higher. The front end portion of the wire is preheated by generating arc for preheating. The preheating arc is generated in a spot-like shape at a position near a terminal end portion of a predetermined welding line by constituting a current lower than a welding current.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: June 29, 2010
    Assignees: Central Motor Wheel Co., Ltd., Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Yukimitsu Suzuki, Ichiro Arita, Satoru Yamasumi, Masaru Seto, Takahisa Iizuka, Kazuhiko Onoue, Kunio Uchikoshi
  • Patent number: 7657082
    Abstract: A method of measuring a welding-groove position for an over-lapped fillet welding of thin members, comprising a projection step of projecting a slit light so that the slit light is projected on both the thin members crossing a welding-groove face, a two-dimensional image acquisition step of capturing the slit-light image projected on each of the thin members as two-dimensional images; a three-dimensional conversion step of converting the two-dimensional images into three-dimensional images using a predetermined three-dimensional conversion parameter, and a calculation step of calculating the welding-groove position based on the three-dimensional data of the projected slit-light images, and relative positions between the projected slit-light images in the three-dimensional data defined by shapes and arrangement of the thin members.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: February 2, 2010
    Assignees: Kawasaki Jukogyo Kabushiki Kaisha, Central Motor Wheel Co., Ltd.
    Inventors: Sadao Kubo, Tadao Shimada, Kazuhiko Onoue, Hirotaka Uehara, Hirotaka Kinoshita, Yukimitsu Suzuki, Ichiro Arita
  • Publication number: 20060213889
    Abstract: To provide an arc start method in a consumable electrode type arc welding method capable of firmly executing arc start and capable of executing high quality high speed welding by restraining a welding defect from being brought about therefor, at a portion of a wire projected from a welding tip, a temperature of a front end portion of the wire is made to be at a temperature higher than a temperature of a portion thereof near the welding tip. The front end portion of the wire is preheated to 300° C. or higher, preferably, 450° C. or higher. The front end portion of the wire is preheated by generating arc for preheating. The preheating arc is generated in a spot-like shape at a position near a terminal end portion of a predetermined welding line by constituting a current lower than a welding current.
    Type: Application
    Filed: March 8, 2006
    Publication date: September 28, 2006
    Applicants: CENTRAL MOTOR WHEEL CO., LTD., KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yukimitsu Suzuki, Ichiro Arita, Satoru Yamasumi, Masaru Seto, Takahisa Iizuka, Kazuhiko Onoue, Kunio Uchikoshi
  • Publication number: 20060213888
    Abstract: There is provided a welding method and a welding equipment, in each of which it is possible to detect a weld abnormality, moreover it is possible to detect a generation position and a length of that abnormality, and further it is possible to perform a repair of a weld abnormality part. After a weld start signal has been inputted, a case where a welding current and a welding voltage, which have been detected by a welding current/voltage detection means, are outside set ranges is made the weld abnormality by an abnormality discrimination means. An abnormality generation time instant and an abnormality termination time instant are calculated with a start signal input timing being made a time axis reference by a time instant calculation means. An abnormality generation position and an abnormality terminus position are operated from data of the time instants and a robot position information by an operation means.
    Type: Application
    Filed: March 8, 2006
    Publication date: September 28, 2006
    Applicants: CENTRAL MOTOR WHEEL CO., LTD., KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yukimitsu Suzuki, Ichiro Arita, Satoru Yamasumi, Takahisa Iizuka, Kazuhiko Onoue, Atsuhito Aoki
  • Publication number: 20060208029
    Abstract: To provide a wire aiming position control method and position control apparatus capable of accurately feeding a welding wire to an aiming position of a welded member regardless of a change in an amount of twisting the wire and to provide a wire aiming position control method and position control apparatus capable of accurately ensuring an aiming position of a torch and capable of ensuring stable welding quality even in thin plate welding, an intersection K1 of a linear line L1 connecting a center of a tip 10 and a wire front end and an extension plane L2 including an imaginary aiming position K disposed at a predetermined position is calculated. A wire displacement C constituting a distance between the intersection K1 and the imaginary aiming position K is calculated. At least either one of a welding wire W and a welded member 14 is corrected along the extension plane L2 by an amount of the wire displacement C.
    Type: Application
    Filed: March 9, 2006
    Publication date: September 21, 2006
    Applicants: CENTRAL MOTOR WHEEL CO., LTD., KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yukimitsu Suzuki, Ichiro Arita, Satoru Yamasumi, Takahisa Iizuka
  • Publication number: 20060159331
    Abstract: A method of measuring a welding-groove position for an over-lapped fillet welding of thin members, comprising a projection step of projecting a slit light so that the slit light is projected on both the thin members crossing a welding-groove face, a two-dimensional image acquisition step of capturing the slit-light image projected on each of the thin members as two-dimensional images; a three-dimensional conversion step of converting the two-dimensional images into three-dimensional images using a predetermined three-dimensional conversion parameter, and a calculation step of calculating the welding-groove position based on the three-dimensional data of the projected slit-light images, and relative positions between the projected slit-light images in the three-dimensional data defined by shapes and arrangement of the thin members.
    Type: Application
    Filed: January 18, 2006
    Publication date: July 20, 2006
    Inventors: Sadao Kubo, Tadao Shimada, Kazuhiko Onoue, Hirotaka Uehara, Hirotaka Kinoshita, Yukimitsu Suzuki, Ichiro Arita
  • Publication number: 20060157533
    Abstract: A processing system including a carry-in stage including a carry-in device; an operation stage wherein the workpieces are measured and processed, the operation stage including a measurement device and a processing device in this order from a carry-in stage side thereof, the measurement device being separated from the processing device; a carry-out stage including a carry-out device; a slide device disposed between the measurement device and the processing device of the operation stage, the slide device including a plurality of lanes respectively provided with fixing jigs movable back and forth; and a controller configured to perform control such that the carry-in device sequentially moves the workpieces onto the respective fixing jigs, the fixing jigs are moved along the slide device, the measurement device measures workpiece measurement portions of the workpieces and the processing device processes the workpiece measurement portion, and thereafter the carry-out device carries the workpieces out.
    Type: Application
    Filed: January 17, 2006
    Publication date: July 20, 2006
    Inventors: Kazuhiko Onoue, Satoru Yamasumi, Kunio Uchikoshi, Tetsuo Iwamoto, Yukimitsu Suzuki, Ichiro Arita
  • Publication number: 20040134566
    Abstract: A manufacturing method of a soft magnetic green compact includes mixing a magnetic powder including an iron system powder and a mixed powder including a resin powder, compressively molding the magnetic powder and the mixed powder in a mold by a powder metallurgic method in a mold to form a green compact, and applying thermal treatment to the green compact. The resin powder includes a lubrication function and a binding function. A composition amount of the resin powder assumes 0.10-3.00 weight percent relative to the total weight before the molding and assumes 0.01-0.
    Type: Application
    Filed: October 21, 2003
    Publication date: July 15, 2004
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Yoshiharu Iyoda, Naoki Kamiya, Ichiro Arita, Kota Maruyama