Patents by Inventor Akira Matsuguchi

Akira Matsuguchi 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: 7626139
    Abstract: Disclosed herein is a manufacturing method, excellent in wire drawability, of a seamed flux-cored welding wire having both favorable feedability and low hydrogen content characteristic. The method for manufacturing a seamed flux-cored wire, comprises the steps of: drawing a tube-like formed wire including a flux filled therein using a lubricant; removing the lubricant from the drawn wire by a physical means; and coating a lubricant (coating an oil) for wire feeding on the wire surface. The respective steps are carried out in an in-line manner. In the wire drawing step, a wire drawing lubricant containing a sulfur-bearing high-pressure lubricant is used, and the overall wire drawing from the tube-like formed wire to a roughly product-diameter wire is carried out by means of a roller die.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: December 1, 2009
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Akira Matsuguchi, Kuniaki Miyazaki, Norio Masaie
  • Publication number: 20050044687
    Abstract: Disclosed herein is a manufacturing method, excellent in wire drawability, of a seamed flux-cored welding wire having both favorable feedability and low hydrogen content characteristic. The method for manufacturing a seamed flux-cored wire, comprises the steps of: drawing a tube-like formed wire including a flux filled therein using a lubricant; removing the lubricant from the drawn wire by a physical means; and coating a lubricant (coating an oil) for wire feeding on the wire surface. The respective steps are carried out in an in-line manner. In the wire drawing step, a wire drawing lubricant containing a sulfur-bearing high-pressure lubricant is used, and the overall wire drawing from the tube-like formed wire to a roughly product-diameter wire is carried out by means of a roller die.
    Type: Application
    Filed: August 4, 2004
    Publication date: March 3, 2005
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.)
    Inventors: Akira Matsuguchi, Kuniaki Miyazaki, Norio Masaie
  • Patent number: 6827217
    Abstract: In a welding wire container, an inner cylinder is inserted inside a bottomed outer cylinder, a pedestal is disposed at a bottom of the inner cylinder, and a bag formed by a resin film is disposed between the outer and inner cylinders. A welding wire is received around an axis of the inner cylinder while being dropped in a coiled state. An upper end portion of the resin film bag is closed to seal the welding wire together with the inner cylinder within the bag. When the container is lifted by grasping holder portions, the weight of the welding wire is borne by means of a belt, whereby the container can be transported easily. Further, the welding wire container has a cap which has been subjected to machining for opening the cap. With this welding wire container, the recovery cost is low or it is possible to eliminate the need of recovery, and the entry of water and moisture from the outside can be prevented, thus permitting a long-term storage of the welding wire.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: December 7, 2004
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Akira Matsuguchi, Masami Tano, Shinji Komatsu
  • Publication number: 20030019776
    Abstract: In a welding wire container, an inner cylinder is inserted inside a bottomed outer cylinder, a pedestal is disposed at a bottom of the inner cylinder, and a bag formed by a resin film is disposed between the outer and inner cylinders. A welding wire is received around an axis of the inner cylinder while being dropped in a coiled state. An upper end portion of the resin film bag is closed to seal the welding wire together with the inner cylinder within the bag. When the container is lifted by grasping holder portions, the weight of the welding wire is borne by means of a belt, whereby the container can be transported easily. Further, the welding wire container has a cap which has been subjected to machining for opening the cap. With this welding wire container, the recovery cost is low or it is possible to eliminate the need of recovery, and the entry of water and moisture from the outside can be prevented, thus permitting a long-term storage of the welding wire.
    Type: Application
    Filed: July 1, 2002
    Publication date: January 30, 2003
    Applicant: Kabushiki Kaisha Kobe Seiko Sho(Kobe Steel, Ltd.)
    Inventors: Akira Matsuguchi, Masami Tano, Shinji Komatsu
  • Patent number: 5672287
    Abstract: A flux-cored wire for arc welding, wherein a specific surface area, which is defined by the equation of {(Sa/Sm)-1} where Sm is an apparent surface area and Sa is a real surface area in a region to be measured on a surface of the wire, is in the range of from 0.005 to 0.035; and molybdenum disulfide is stuck on the surface of the wire in an amount of from 0.004 to 0.24 g/m.sup.2, and no plating is applied on the surface of the wire. Moreover, a solid wire for arc welding wherein the specific surface area {(Sa/Sm)-1} is in the range of from 0.0005 to 0.05; and molybdenum disulfide is stuck on the surface of the wire in an amount of from 0.001 to 0.5 g/m.sup.2, and no plating is applied on the surface of the wire.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: September 30, 1997
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Norio Masaie, Tomoyuki Tachibana, Hiroyuki Shimizu, Kazuhiko Ito, Akira Matsuguchi, Yoshikazu Sasa, Atsushi Furuya
  • Patent number: 5550348
    Abstract: A flux-cored wire for arc welding, wherein a specific surface area, which is defined by the equation of {(Sa/Sm)-1} where Sm is an apparent surface area and Sa is a real surface area in a region to be measured on a surface of the wire, is in the range of from 0.005 to -0.035; and molybdenum disulfide is stuck on the surface of the wire in an amount of from 0.004 to 0.24 g/m.sup.2, and no plating is applied on the surface of the wire. Moreover, a solid wire for arc welding wherein the specific surface area {(Sa/Sm)-1} is in the range of from 0.0005 to 0.05; and molybdenum disulfide is stuck on the surface of the wire in an amount of from 0.001 to 0.5 g/m.sup.2, and no plating is applied on the surface of the wire.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: August 27, 1996
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Norio Masaie, Tomoyuki Tachibana, Hiroyuki Shimizu, Kazuhiko Ito, Akira Matsuguchi, Yoshikazu Sasa, Atsushi Furuya
  • Patent number: 5403377
    Abstract: Disclosed is a flux cored wire for low alloy steels and high alloy steels which is excellent in arc stability and moisture absorption resistance of fume/slag. In this flux-cored wire, the flux components and the flux ratio are specified within the following ranges: namely, Na compound (Na.sub.2 O equivalent amount)+K compound (K.sub.2 O equivalent amount) (flux wt %): 1.5-6.0%; soluble Na compound (Na.sub.2 O equivalent amount) (flux wt %): 1.5% or less; soluble K compound (K.sub.2 O equivalent amount) (flux wt %): 0.8% or less; SiO.sub.2 (flux wt %): 5-30%; TiO.sub.2 +ZrO.sub.2 +Al.sub.2 O.sub.3 (flux wt %): 5-40%; flux ratio (wire wt %): 10-30%. Further, the flux components satisfy the formula of {soluble Na compound (Na.sub.2 O equivalent amount)+0.1.times.soluble K compound (K.sub.2 O equivalent amount)}/{SiO.sub.2 +0.5.times.(TiO.sub.2 +ZrO.sub.2 +Al.sub.2 O.sub.3)}: 40.times.10.sup.-3 or less. In addition, one or more kinds of a Li compound (Li.sub.2 O equivalent amount) and a Cs compound (Cs.sub.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: April 4, 1995
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Norio Masaie, Kazuhiko Ito, Akira Matsuguchi