Patents by Inventor Tetsuo Osato

Tetsuo Osato 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).

  • Process for producing rare metal
    Patent number: 8888985
    Abstract: According to one embodiment, a process for producing rare metals includes the steps of: recovering a first-residue solution through a primary target metal extracted by leaching a mineral resource; extracting a perrhenic acid ion contained in the first-residue solution with at least one of an anion exchange resin and a first-organic solvent; back extracting the perrhenic acid ion contained in the anion exchange resin or the first-organic solvent to a first-eluant; and electrolyzing the back extracted first-eluant to collect a rhenium at a cathode.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: November 18, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koji Mizuguchi, Shohei Kanamura, Tetsuo Osato, Yuya Takahashi, Yumi Yaita, Yu Yamashita, Reiko Fujita, Takashi Omori, Takashi Yazawa
  • PROCESS FOR PRODUCING RARE METAL
    Publication number: 20130001096
    Abstract: According to one embodiment, a process for producing rare metals includes the steps of: recovering a first-residue solution through a primary target metal extracted by leaching a mineral resource; extracting a perrhenic acid ion contained in the first-residue solution with at least one of an anion exchange resin and a first-organic solvent; back extracting the perrhenic acid ion contained in the anion exchange resin or the first-organic solvent to a first-eluant; and electrolyzing the back extracted first-eluant to collect a rhenium at a cathode.
    Type: Application
    Filed: June 20, 2012
    Publication date: January 3, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Koji MIZUGUCHI, Shohei Kanamura, Tetsuo Osato, Yuya Takahashi, Yumi Yaita, Yu Yamashita, Reiko Fujita, Takashi Omori, Takashi Yazawa