Patents by Inventor Masahide Nakano

Masahide Nakano 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).

  • Silica gel linked to a phthalocyanine compound and a method for treating polycyclic organic substances therewith
    Patent number: 4623638
    Abstract: Silica gel is treated with a reactive phthalocyanine compound to form the blue silica gel, which has a phthalocyanine skeleton linked through an organic group. Typically, a phthalocyanine reactive dye is used for the reaction with silica gel at its hydroxyl or other reactive site. The blue silica gel easily adsorbs and desorbs the polycyclic organic substances in a solution. The blue silica gel can be used for the separation or removal of the mutagenic substances from the environment, foodstuffs, etc.
    Type: Grant
    Filed: March 21, 1985
    Date of Patent: November 18, 1986
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hikoya Hayatsu, Masahide Nakano, Yoshikazu Matsuo
  • Method for treatment of mutagens
    Patent number: 4460475
    Abstract: Mutagenic substances in solutions are selectively adsorbed by specific solid adsorbents bearing covalently bound phthalocyanine derivatives. The adsorbents are prepared by coupling the organic solid materials, for instance, cotton and cellulose powder, with phthalocyanine derivatives having chemically reactive terminal groups. Such reactive phthalocyanines are commercially available as phthalocyanine reactive dyes.
    Type: Grant
    Filed: March 25, 1983
    Date of Patent: July 17, 1984
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hikoya Hayatsu, Masahide Nakano
  • Label printer
    Patent number: D1026088
    Type: Grant
    Filed: July 27, 2023
    Date of Patent: May 7, 2024
    Assignee: BROTHER INDUSTRIES, LTD.
    Inventors: Kazuki Nakano, Robin Riazi, Hiroki Tabuchi, Masahide Asano
  • Printer
    Patent number: D1028077
    Type: Grant
    Filed: August 31, 2022
    Date of Patent: May 21, 2024
    Assignee: BROTHER INDUSTRIES, LTD.
    Inventors: Hirohide Nawata, Yukihiko Sato, Masahide Asano, Hiromitsu Tanaka, Kazuki Nakano