Patents by Inventor Kentaro Akashi

Kentaro Akashi 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).

  • Apparatus for hot dip galvanizing
    Patent number: 6770140
    Abstract: An apparatus for galvanizing which comprises a plating tank, a dross removing tank, a means to transfer the molten metal bath from the plating tank to the dross removing tank, and an opening located on the plating tank to recycle the molten metal bath from the dross removing tank to the plating tank.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: August 3, 2004
    Assignee: NKK Corporation
    Inventors: Toshio Ishii, Munehiro Ishioka, Syu-ji Nomura, Yasunori Ohsaki, Seishi Hatakeyama, Kentaro Akashi, Ryuji Nagayama, Kozo Hadada, Yoichi Miyakawa, Kazuo Kunioka, Kenji Araki, Nobuyuki Ishida, Keishi Yamashita, Teruhisa Kuwana, Motoi Uesugi
  • Method for hot-dip galvanizing
    Patent number: 6426122
    Abstract: The method for hot dip galvanizing comprises the steps of: dividing a plating vessel holding a molten metal into a plating tank and a dross removing tank; conducting hot dip galvanizing to a steel strip by immersing thereof in the molten metal bath; then transferring the molten metal bath from the plating tank to the dross removing tank; removing a dross from the molten metal bath in the dross removing tank; and recycling the molten metal bath from the dross removing tank to the plating tank through an opening located on the plating tank. The apparatus for galvanizing comprises a plating tank, a dross removing tank, a means to transfer the molten metal bath from the plating tank to the dross removing tank, and an opening located on the plating tank to recycle the molten metal bath from the dross removing tank to the plating tank.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: July 30, 2002
    Assignee: NKK Corporation
    Inventors: Toshio Ishii, Munehiro Ishioka, Syu-ji Nomura, Yasunori Ohsaki, Seishi Hatakeyama, Kentaro Akashi, Ryuji Nagayama, Kozo Hadada, Yoichi Miyakawa, Kazuo Kunioka, Kenji Araki, Nobuyuki Ishida, Keishi Yamashita, Teruhisa Kuwana, Motoi Uesugi
  • Apparatus for hot dip galvanizing
    Publication number: 20020076502
    Abstract: The method for hot dip galvanizing comprises the steps of: dividing a plating vessel holding a molten metal into a plating tank and a dross removing tank; conducting hot dip galvanizing to a steel strip by immersing thereof in the molten metal bath; then transferring the molten metal bath from the plating tank to the dross removing tank; removing a dross from the molten metal bath in the dross removing tank; and recycling the molten metal bath from the dross removing tank to the plating tank through an opening located on the plating tank. The apparatus for galvanizing comprises a plating tank, a dross removing tank, a means to transfer the molten metal bath from the plating tank to the dross removing tank, and an opening located on the plating tank to recycle the molten metal bath from the dross removing tank to the plating tank.
    Type: Application
    Filed: January 28, 2002
    Publication date: June 20, 2002
    Applicant: NKK CORPORATION
    Inventors: Toshio Ishii, Munehiro Ishioka, Syu-Ji Nomura, Yasunori Ohsaki, Seishi Hatakeyama, Kentaro Akashi, Ryuji Nagayama, Kozo Hadada, Yoichi Miyakawa, Kazuo Kunioka, Kenji Araki, Nobuyuki Ishida, Keishi Yamashita, Teruhisa Kuwana, Motoi Uesugi
  • Apparatus for hot-dip coating a steel strip
    Patent number: 6315829
    Abstract: An apparatus for hot-dip coating a steel strip, comprising: (a) an annealing furnace for continuously annealing the steel strip, the annealing furnace having an entrance side and an exit side; (b) a coating pot having a molten metal coating bath for coating the annealed steel strip; (c) a snout through which the annealed steel strip is introduced into the molten metal coating bath, one end of the snout being connected to the annealing furnace and the other end being immersed into the molten metal coating bath; (d) a seal device for sealing between the annealing furnace and the snout, the seal device being disposed at the exit side of the annealing furnace; and (e) a discharge device for discharging a gas containing a metal vapor from the snout to outside of the snout, the metal vapor being evaporated from the molten metal coating bath in the snout.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: November 13, 2001
    Assignee: NKK Corporation
    Inventors: Toshio Ishii, Munehiro Ishioka, Akira Hiraya, Seishi Hatakeyama, Nobuyuki Ishida, Teruhisa Kuwana, Kazumi Jiromaru, Toshihiko Ooi, Hideyuki Suzuki, Shinichi Tomonaga, Hitoshi Oishi, Kentaro Akashi, Takayuki Fukui
  • Continuous hot-dip coating method and apparatus therefor
    Patent number: 6093452
    Abstract: A method for hot-dip coating a steel strip comprises: (a) continuously annealing the steel strip in an annealing furnace; (b) introducing the annealed steel strip into a molten metal coating bath through a snout; (c) dipping the annealed steel strip into the molten metal coating bath; (d) controlling a pressure inside of the snout; and (e) discharging a gas containing a metal vapor from the snout to outside of the snout. An apparatus comprises an annealing furnace, a coating pot, a control device for controlling a pressure inside the snout and a gas discharging device.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: July 25, 2000
    Assignee: NKK Corporation
    Inventors: Toshio Ishii, Munehiro Ishioka, Akira Hiraya, Seishi Hatakeyama, Nobuyuki Ishida, Teruhisa Kuwana, Kazumi Jiromaru, Toshihiko Ooi, Hideyuki Suzuki, Shinichi Tomonaga, Hitoshi Oishi, Kentaro Akashi, Takayuki Fukui