Patents Assigned to Nippon Steel & Sumikin Stainless Steel Corp.
  • Power distribution transformer and tank therefor
    Patent number: 8432244
    Abstract: Disclosed is a power distribution transformer having a body of the transformer, the body consisting of a coil and an iron core; a tank containing the body of the transformer and an insulation substance which fills an inner space of the tank; and an upper lid of the tank. The tank and/or the upper lid is made of a ferritic stainless steel.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: April 30, 2013
    Assignees: Hitachi Industrial Equipment Systems Co., Ltd., Nippon Steel & Sumikin Stainless Steel Corp.
    Inventors: Masao Hosokawa, Mitsuaki Kawashima, Kazuyuki Fukui, Kouji Yamashita, Izumi Muto, Eiichiro Ishimaru, Hiroshige Inoue
  • Power distribution transformer and tank therefor
    Patent number: 8143985
    Abstract: Disclosed is a power distribution transformer having a body of the transformer, the body consisting of a coil and an iron core; a tank containing the body of the transformer and an insulation substance which fills an inner space of the tank; and an upper lid of the tank. The tank and/or the upper lid is made of a ferritic stainless steel.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: March 27, 2012
    Assignees: Hitachi Industrial Equipment Systems Co., Ltd., Nippon Steel & Sumikin Stainless Steel Corp.
    Inventors: Masao Hosokawa, Mitsuaki Kawashima, Kazuyuki Fukui, Kouji Yamashita, Izumi Muto, Eiichiro Ishimaru, Hiroshige Inoue
  • Power distribution transformer and tank therefor
    Patent number: 7843298
    Abstract: Disclosed is a power distribution transformer having a body of the transformer, the body consisting of a coil and an iron core; a tank containing the body of the transformer and an insulation substance which fills an inner space of the tank; and an upper lid of the tank. The tank and/or the upper lid is made of a ferritic stainless steel.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: November 30, 2010
    Assignees: Hitachi Industrial Equipment Systems Co., Ltd, Nippon Steel & Sumikin Stainless Steel Corp.
    Inventors: Masao Hosokawa, Mitsuaki Kawashima, Kazuyuki Fukui, Kouji Yamashita, Izumi Muto, Eiichiro Ishimaru, Hiroshige Inoue