Patents by Inventor Kazuo Kunii

Kazuo Kunii 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: 7938883
    Abstract: A method of making metallic iron in which a compact, containing iron oxide such as iron ore or the like and a carbonaceous reductant such as coal or the like, is used as material, and the iron oxide is reduced through the application of heat, thereby making metallic iron. In the course of this reduction, a shell composed of metallic iron is generated and grown on the surface of the compact, and slag aggregates inside the shell. This reduction continues until substantially no iron oxide is present within the metallic iron shell. Subsequently, heating is further performed to melt the metallic iron and slag. Molten metallic iron and molten slag are separated one from the other, thereby obtaining metallic iron with a relatively high metallization ratio.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: May 10, 2011
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Takuya Negami, Kazuo Kunii, Shinichi Inaba, Masataka Shimizu, Isao Kobayashi, Yoshimichi Takenaka, Toshihide Matsumura, Akira Uragami, Takashi Kujirai, Osamu Tsuchiya, Kimio Sugiyama, Shuzo Ito, Shoichi Kikuchi
  • Publication number: 20090025511
    Abstract: A method of making metallic iron in which a compact, containing iron oxide such as iron ore or the like and a carbonaceous reductant such as coal or the like, is used as material, and the iron oxide is reduced through the application of heat, thereby making metallic iron. In the course of this reduction, a shell composed of metallic iron is generated and grown on the surface of the compact, and slag aggregates inside the shell. This reduction continues until substantially no iron oxide is present within the metallic iron shell. Subsequently, heating is further performed to melt the metallic iron and slag. Molten metallic iron and molten slag are separated one from the other, thereby obtaining metallic iron with a relatively high metallization ratio.
    Type: Application
    Filed: September 14, 2007
    Publication date: January 29, 2009
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO
    Inventors: Takuya Negami, Kazuo Kunii, Shinichi Inaba, Masataka Shimizu, Isao Kobayashi, Yoshimichi Takenaka, Toshihide Matsumura, Akira Uragami, Takashi Kujirai, Osamu Tsuchiya, Kimio Sugiyama, Shuzo Ito, Shoichi Kikuchi
  • Publication number: 20030061909
    Abstract: A method of making metallic iron in which a compact, containing iron oxide such as iron ore or the like and a carbonaceous reductant such as coal or the like, is used as material, and the iron oxide is reduced through the application of heat, thereby making metallic iron. In the course of this reduction, a shell composed of metallic iron is generated and grown on the surface of the compact, and slag aggregates inside the shell. This reduction continues until substantially no iron oxide is present within the metallic iron shell. Subsequently, heating is further performed to melt the metallic iron and slag. Molten metallic iron and molten slag are separated one from the other, thereby obtaining metallic iron with a relatively high metallization ratio.
    Type: Application
    Filed: November 7, 2002
    Publication date: April 3, 2003
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO
    Inventors: Takuya Negami, Kazuo Kunii, Shinichi Inaba, Masataka Shimizu, Isao Kobayashi, Yoshimichi Takenaka, Toshihide Matsumura, Akira Uragami, Takashi Kujirai, Osamu Tsuchiya, Kimio Sugiyama, Shuzo Ito, Shoichi Kikuchi
  • Patent number: 6506231
    Abstract: A method of making metallic iron in which a compact, containing iron oxide such as iron ore or the like and a carbonaceous reductant such as coal or the like, is used as material, and the iron oxide is reduced through the application of heat, thereby making metallic iron. In the course of this reduction, a shell composed of metallic iron is generated and grown on the surface of the compact, and slag aggregates inside the shell. This reduction continues until substantially no iron oxide is present within the metallic iron shell. Subsequently, heating is further performed to melt the metallic iron and slag. Molten metallic iron and molten slag are separated one from the other, thereby obtaining metallic iron with a relatively high metallization ratio.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: January 14, 2003
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Takuya Negami, Kazuo Kunii, Shinichi Inaba, Masataka Shimizu, Isao Kobayashi, Yoshimichi Takenaka, Toshihide Matsumura, Akira Uragami, Takashi Kujirai, Osamu Tsuchiya, Kimio Sugiyama, Shuzo Ito, Shoichi Kikuchi
  • Patent number: 6432533
    Abstract: A method of making metallic iron in which a compact, containing iron oxide such as iron ore or the like and a carbonaceous reductant such as coal or the like, is used as material, and the iron oxide is reduced through the application of heat, thereby making metallic iron. In the course of this reduction, a shell composed of metallic iron is generated and grown on the surface of the compact, and slag aggregates inside the shell. This reduction continues until substantially no iron oxide is present within the metallic iron shell. Subsequently, heating is further performed to melt the metallic iron and slag. Molten metallic iron and molten slag are separated one from the other, thereby obtaining metallic iron with a relatively high metallization ratio.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: August 13, 2002
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Takuya Negami, Kazuo Kunii, Shinichi Inaba, Masataka Shimizu, Isao Kobayashi, Yoshimichi Takenaka, Toshihide Matsumura, Akira Uragami, Takashi Kujirai, Osamu Tsuchiya, Kimio Sugiyama, Shuzo Ito, Shoichi Kikuchi
  • Publication number: 20010049980
    Abstract: A method of making metallic iron in which a compact, containing iron oxide such as iron ore or the like and a carbonaceous reductant such as coal or the like, is used as material, and the iron oxide is reduced through the application of heat, thereby making metallic iron. In the course of this reduction, a shell composed of metallic iron is generated and grown on the surface of the compact, and slag aggregates inside the shell. This reduction continues until substantially no iron oxide is present within the metallic iron shell. Subsequently, heating is further performed to melt the metallic iron and slag. Molten metallic iron and molten slag are separated one from the other, thereby obtaining metallic iron with a relatively high metallization ratio.
    Type: Application
    Filed: June 26, 2001
    Publication date: December 13, 2001
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO
    Inventors: Takuya Negami, Kazuo Kunii, Shinichi Inaba, Masataka Shimizu, Isao Kobayashi, Yoshimichi Takenaka, Toshihide Matsumura, Akira Uragami, Takashi Kujirai, Osamu Tsuchiya, Kimio Sugiyama, Shuzo Ito, Shoichi Kikuchi
  • Patent number: 6301757
    Abstract: A buckle comprises a male member and a female member. The male member is provided with an insertion portion adapted to be inserted into the female member and an insertion hole formed inside of the insertion portion. The female member is provided with a recess in which the insertion portion is to be fitted, and an accommodating portion adapted to communicate with the insertion hole. The accommodating portion is provided therein with an engaging piece swingable in an inserting direction to the insertion hole. The engaging piece is provided with an engaging portion which is to be inserted through the insertion hole. The insertion hole of the male member is formed with a locking surface against which the engaging portion is adapted to abut.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: October 16, 2001
    Assignee: YKK Corporation
    Inventors: Kazuo Kunii, Tomohisa Ishida
  • Patent number: 6036744
    Abstract: A method of making metallic iron in which a compact, containing iron oxide such as iron ore or the like and a carbonaceous reductant such as coal or the like, is used as material, and the iron oxide is reduced through the application of heat, thereby making metallic iron. In the course of this reduction, a shell composed of metallic iron is generated and grown on the surface of the compact, and slag aggregates inside the shell. This reduction continues until substantially no iron oxide is present within the metallic iron shell. Subsequently, heating is further performed to melt the metallic iron and slag. Molten metallic iron and molten slag are separated one from the other, thereby obtaining metallic iron with a relatively high metallization ratio.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: March 14, 2000
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Takuya Negami, Kazuo Kunii, Shinichi Inaba, Masataka Shimizu, Isao Kobayashi, Yoshimichi Takenaka, Toshihide Matsumura, Akira Uragami, Takashi Kujirai, Osamu Tsuchiya, Kimio Sugiyama, Shuzo Ito, Shoichi Kikuchi
  • Patent number: 5343610
    Abstract: A method for making an anti-skid apparatus for an automobile tire includes coating a plurality of core materials with rubber to form a plurality of cords; placing the cords in grooves of a preliminary molding plate and knitting the cords to form a net body; molding the cord into a non-vulcanized net body which inherently possesses crossing sections-where one of the plurality of cords lies on top of another of the plurality of cords; pressing the crossing sections so as to cause the core materials at the crossing sections to become linearly aligned; and vulcanizing the pressed non-vulcanized anti-skid net bodies to form a vulcanized net body. The step of pressing the crossing sections temporarily fixes the respective cords to each other at respective crossing sections. Also, affixing elements are attached to the vulcanized net body to detachably secure the vulcanized net body to an automobile tire.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: September 6, 1994
    Assignee: Okamoto Industries, Inc.
    Inventors: Osamu Haruda, Shin Imamura, Suguru Hanzawa, Nobuo Amada, Kazuo Kunii, Hidetaka Kobayashi, Shinichi Yano, Muneo Nishiyama
  • Patent number: 5247980
    Abstract: An anti-skid net body for a tire includes a plurality of cords having crossing portions and open portions, with the crossing portions having a flat shape. At least one rope is fixed to an inside portion of the net body. An actional band and a setting band are detachably connected to an outside portion of the net body, wherein the setting band is connected prior to connecting the actional band, thereby tightly fastening the anti-skid net body to a tire.
    Type: Grant
    Filed: April 5, 1990
    Date of Patent: September 28, 1993
    Assignee: Okamoto Industries, Inc.
    Inventors: Osamu Haruda, Shin Imamura, Suguru Hanzawa, Nobuo Amada, Kazuo Kunii, Hidetaka Kobayashi, Shinichi Yano, Muneo Nishiyama