Patents by Inventor Hironobu Fujii

Hironobu Fujii 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: 8460834
    Abstract: A hydrogen production method includes: a first process in which nitrogen compounds of metal and water are reacted to produce ammonia and hydroxide of the metal; a second process in which hydrogen compounds of a metal and the ammonia produced in the first process are reacted; and a third process in which hydrogen compounds of a metal and the hydroxide of the metal produced in the first process are reacted.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: June 11, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, Hiroshima University
    Inventors: Kyoichi Tange, Yoshitsugu Kojima, Takayuki Ichikawa, Chie Oomatsu, Satoshi Hino, Hironobu Fujii
  • Publication number: 20100330443
    Abstract: A hydrogen production method includes: a first process in which nitrogen compounds of metal and water are reacted to produce ammonia and hydroxide of the metal; a second process in which hydrogen compounds of a metal and the ammonia produced in the first process are reacted; and a third process in which hydrogen compounds of a metal and the hydroxide of the metal produced in the first process are reacted.
    Type: Application
    Filed: September 26, 2008
    Publication date: December 30, 2010
    Inventors: Kyoichi Tange, Yoshitsugu Kojima, Takayuki Ichikawa, Chie Oomatsu, Satoshi Hino, Hironobu Fujii
  • Publication number: 20100135898
    Abstract: Disclosed is a method for producing a metal hydride, which enables to obtain a metal hydride from a metal imide or a metal amide. Specifically, in an air current containing a hydrogen gas having a hydrogen partial pressure of 0.1 MPa or greater, hydrogen is reacted with one or both of a metal imide and a metal amide, thereby producing a metal hydride. The metal constituting the metal amide and the metal imide is preferably lithium, sodium or potassium.
    Type: Application
    Filed: March 14, 2008
    Publication date: June 3, 2010
    Applicants: TAIHEIYO CEMENT CORPORATION, HIROSHIMA UNIVERSITY
    Inventors: Yoshitsugu Kojima, Hironobu Fujii, Takayuki Ichikawa, Satoshi Hino, Haiyan Leng, Kyoichi Tange, Chie Omatsu
  • Patent number: 7537748
    Abstract: A hydrogen storage matter contains at least a nano-structured and organized lithium imide compound precursor complex. In the hydrogen stroge matter, the lithium imide compound precursor complex has been nano-structured and organized by mixing fine powder lithium amide with fine powder lithium hydride at a predetermined ratio to prepare a mixture as a starting material, and then processing the mixture by a predetermined complex formation processing method.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: May 26, 2009
    Assignees: National University Corporation, Hiroshima University, Taiheiyo Cement Corporation
    Inventors: Hironobu Fujii, Takayuki Ichikawa, Haiyan Leng, Shigehito Isobe, Nobuko Hanada, Toyoyuki Kubokawa, Kazuhiko Tokoyoda, Keisuke Okamoto, Shinkichi Tanabe, Shigeru Matsuura, Kenji Ogawa
  • Publication number: 20090121184
    Abstract: [Problem] To provide a hydrogen storage material which decreases the hydrogen release start temperature and the hydrogen release peak temperature, and to provide a method for manufacturing thereof. [Solution] Provided is a hydrogen storage material which contains: a mixture and a reaction product of lithium hydride and magnesium amide, wherein the lithium hydride and the magnesium amide are prepared by combining as the raw materials: one or more substance selected from the group consisting of an amide compound, an imide compound, and a nitride of magnesium, and an amide compound, an imide compound, and a nitride of lithium; and one or more substance selected from the group consisting of an amide compound, an imide compound, a nitride, a hydride, and a metal of magnesium, and an amide compound, an imide compound, a nitride, a hydride, and a metal of lithium, with the raw materials contains both magnesium and lithium metallic species.
    Type: Application
    Filed: March 27, 2006
    Publication date: May 14, 2009
    Inventor: Hironobu Fujii
  • Publication number: 20060127304
    Abstract: A hydrogen storage matter contains at least a nano-structured and organized lithium imide compound precursor complex. In the hydrogen stroge matter, the lithium imide compound precursor complex has been nano-structured and organized by mixing fine powder lithium amide with fine powder lithium hydride at a predetermined ratio to prepare a mixture as a starting material, and then processing the mixture by a predetermined complex formation processing method.
    Type: Application
    Filed: February 9, 2006
    Publication date: June 15, 2006
    Applicants: NATIONAL UNIVERSITY CORPORATION HIROSHIMA UNIVERSITY, TAIHEIYO CEMENT CORPORATION
    Inventors: Hironobu Fujii, Takayuki Ichikawa, Haiyan Leng, Shigehito Isobe, Nobuko Hanada, Toyoyuki Kubokawa, Kazuhiko Tokoyoda, Keisuke Okamoto, Shinkichi Tanabe, Shigeru Matsuura, Kenji Ogawa
  • Patent number: 5536586
    Abstract: A composite hydrogen storage alloy material includes a hydrogen storage alloy material and a surface material bonded to the surface of the hydrogen storage alloy material. The surface material has a potential energy between those of hydride of the hydrogen storage alloy and hydrogen gas and permits migration of hydrogen between the inside and outside of the hydrogen storage alloy material.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: July 16, 1996
    Assignee: Mazda Motor Corporation
    Inventors: Yoshinori Tsushio, Kenichi Yamamoto, Shinichi Tanioka, Tsuyoshi Morishita, Toru Ogasawara, Tsutomu Shimizu, Hironobu Fujii, Shinichi Orimo