Patents by Inventor Tetsumasa Kawamoto

Tetsumasa Kawamoto 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).

  • Method of producing reduced iron and production facilities therefor
    Patent number: 6840981
    Abstract: A method of producing reduced iron pellets including reducing raw material pellets to obtain reduced iron pellets, and rolling the reduced iron pellets at a temperature ranging between 800 and 1200° C. sufficiently such that the reduced iron pellets undergo sintering.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: January 11, 2005
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Hironori Fujioka, Hideaki Mizuki, Koichi Hirata, Shigeo Itano, Susumu Kamikawa, Hisao Teramoto, Takashi Yamane, Shigeki Sueda, Tetsumasa Kawamoto
  • Method of producing reduced iron and production facilities therefor
    Publication number: 20020000687
    Abstract: Several methods and production facilities are provided in order to solve several problems encountered in conventional methods and facilities for producing reduced iron by reducing raw material pellets of a mixture of an iron oxide powder and a reducing material powder in a rotary bed-type reducing furnace and by melting the reduced iron in a sealed-type electro-blast furnace.
    Type: Application
    Filed: July 26, 2001
    Publication date: January 3, 2002
    Applicant: Mitsubishi Heavy Industries, Ltd.
    Inventors: Hironori Fujioka, Hideaki Mizuki, Koichi Hirata, Shigeo Itano, Susumu Kamikawa, Hisao Teramoto, Takashi Yamane, Shigeki Sueda, Tetsumasa Kawamoto
  • Method of producing reduced iron and production facilities therefor
    Patent number: 6312501
    Abstract: A method of producing raw material pellets, including forming pellets from a mixture of an iron oxide powder, a coal powder and a binder material after adding adjusting water to the mixture, and drying the pellets, wherein the binder material comprises at least one of tar and at least one of carboxymethylcellulose and polyvinylalcohol.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: November 6, 2001
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Hironori Fujioka, Hideaki Mizuki, Koichi Hirata, Shigeo Itano, Susumu Kamikawa, Hisao Teramoto, Takashi Yamane, Shigeki Sueda, Tetsumasa Kawamoto
  • Method of producing reduced iron and production facilities therefor
    Publication number: 20010032527
    Abstract: Several methods and production facilities are provided in order to solve several problems encountered in conventional methods and facilities for producing reduced iron by reducing raw material pellets of a mixture of an iron oxide powder and a reducing material powder in a rotary bed-type reducing furnace and by melting the reduced iron in a sealed-type electro-blast furnace.
    Type: Application
    Filed: May 4, 2001
    Publication date: October 25, 2001
    Applicant: Mitsubishi Heavy Industries, Ltd.
    Inventors: Hironori Fujioka, Hideaki Mizuki, Koichi Hirata, Shigeo Itano, Susumu Kamikawa, Hisao Teramoto, Takashi Yamane, Shigeki Sueda, Tetsumasa Kawamoto