Patents by Inventor Masatada Yamashita

Masatada Yamashita 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 for decomposing nonmetallic honeycomb panel, and method for recycling the same
    Patent number: 7084181
    Abstract: The present invention treats crushed pieces of a nonmetallic honeycomb panel together with a process water under high-temperature and high-pressure for a predetermined time so as to separate components. Water or alkali-added water is used as process water. The method comprises a first process for treating the crushed pieces for a predetermined time with the water heated and pressurized to a subcritical range to hydrolyze aromatic polyamide, and a second process for treating the same with the water heated and pressurized to a supercritical range, wherein the aromatic polyamide is hydrolyzed and separated in the first process, and dehalogenation is carried out in the second process.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: August 1, 2006
    Assignees: Jamco Corporation, Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventors: Toru Kasai, Shuntaro Kuriyama, Masatada Yamashita, Keiichi Miwa
  • Method for decomposing nonmetallic honeycomb panel, and method for recycling the same
    Publication number: 20040097776
    Abstract: The present invention treats crushed pieces of a nonmetallic honeycomb panel together with a process water under high-temperature and high-pressure for a predetermined time so as to separate components. Water or alkali-added water is used as process water. The method comprises a first process for treating the crushed pieces for a predetermined time with the water heated and pressurized to a subcritical range to hydrolyze aromatic polyamide, and a second process for treating the same with the water heated and pressurized to a supercritical range, wherein the aromatic polyamide is hydrolyzed and separated in the first process, and dehalogenation is carried out in the second process.
    Type: Application
    Filed: September 26, 2003
    Publication date: May 20, 2004
    Applicants: JAMCO CORPORATION, ISHIKAWAJIMA-HARIMA JUKOGYO KABUSHIKI KAISHA
    Inventors: Toru Kasai, Shuntaro Kuriyama, Masatada Yamashita, Keiichi Miwa