Patents by Inventor Akio Kasama

Akio Kasama 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 preheating and melting of scrap and process for the same
    Patent number: 5889810
    Abstract: A preheating and melting apparatus for scrap, for preheating and melting the scrap highly efficiently, includes a scrap melting furnace having a top blowing lance and an electric arc heater and a preheater for introducing an exhaust gas generated from the melting furnace and preheating the scrap. The scrap preheater is a shaft furnace and a rotary furnace is disposed at the bottom portion of the shaft furnace to continue the shaft furnace. The scrap discharged from the shaft furnace is transferred into the rotary furnace and it is then charged into the scrap melting furnace.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: March 30, 1999
    Assignee: Nippon Steel Corporation
    Inventors: Hiroyuki Katayama, Kenro Sato, Akio Kasama, Yasushi Okumura, Yoji Demoto, Shinya Kitamura, Toshiya Harada
  • Apparatus of continuously casting a metal sheet
    Patent number: 5368088
    Abstract: Molten metal is supplied to a pouring basin formed between cooling members, such as movable cooling drums. A closed space is formed at a meniscus area whereat any one of the cooling members starts to come into contact with the molten metal, and a soluble gas or a mixture of soluble and insoluble gases is supplied to and filled in the closed space, thereby covering the meniscus area with the gas or the mixture. This arrangement enables a continuous casting of a thin metal sheet without surface cracks and having excellent surface characteristics.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: November 29, 1994
    Assignees: Nippon Steel Corporation, Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Takashi Furuya, Hidemaro Takeuchi, Akio Kasama, Yasuo Itoh, Motoya Fujii, Hideki Oka, Shogo Matsumura, Kunimasa Sasaki, Keiichi Yamamoto
  • Method and apparatus of continuously casting a metal sheet
    Patent number: 5103895
    Abstract: Molten metal is supplied to a pouring basin formed between cooling members, such as movable cooling drums. A closed space is formed at a meniscus area whereat any one of the cooling members starts to come into contact with the molten metal, and a soluble gas or a mixture of soluble and insoluble gases is supplied to and filled in the closed space, thereby covering the meniscus area with the gas or the mixture. This arrangement enables a continuous casting of a thin metal sheet without surface cracks and having excellent surface characteristics.
    Type: Grant
    Filed: July 17, 1990
    Date of Patent: April 14, 1992
    Assignees: Nippon Steel Corporation, Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Takashi Furuya, Hidemaro Takeuchi, Akio Kasama, Yasuo Itoh, Motoya Fujii, Hideki Oka, Shogo Matsumura, Kunimasa Sasaki, Keiichi Yamamoto
  • Cooling drum for continuous-casting machines for manufacturing thin metallic strip
    Patent number: 4887662
    Abstract: A cooling drum for continuous-casting machines, for manufacturing thin metallic strips, and having a surface composing part of a casting mold wall in contact with molten metal, wherein the surface has numerous dimples disposed uniformly thereon and not in contact with each other, and each of the dimples has an opening portion in the form of a circle or an oval with a diameter of from 0.1 to 1.2 mm and a depth of from 5 to 100 .mu.m.
    Type: Grant
    Filed: September 22, 1988
    Date of Patent: December 19, 1989
    Inventors: Shigenori Tanaka, Yasuo Itoh, Michiya Hayashida, Kenichi Hara, Keiichi Yamamoto, Hikotaro Itani, Atsumu Yamane, Akio Kasama, Isao Suichi, Hiroyuki Kajioka, Kunimasa Sasaki