Patents by Inventor Ryosuke O. Suzuki

Ryosuke O. Suzuki 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).

  • Powdered tantalum, niobium, production process thereof and porous sintered body and solid electrolytic capacitor using the powdered tantalum or niobium
    Patent number: 6788525
    Abstract: A tantalum or niobium powder that can provide a porous sintered tantalum or niobium body having a large surface area and involving a lower risk of failure to form a solid electrolyte film, where a material serving as a tantalum or niobium ion source is dissolved in a molten salt, upon which a reducing agent is allowed to act, resulting in reduction to the metal state of the tantalum or niobium ions dissolved in the molten salt, to thereby obtain a tantalum or niobium powder including aggregated columnar particles. A tantalum or niobium powder contains radially aggregated particles formed by a plurality of columnar particles aggregated radially.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: September 7, 2004
    Assignee: Cabot Supermetals K.K.
    Inventors: Ryosuke O. Suzuki, Rieko Ishii, Tadao Nishiyama, Hitoshi Iijima
  • Powdered tantalum, niobium, production process thereof and porous sintered body and solid electrolytic capacitor using the powdered tantalum or niobium
    Publication number: 20030206390
    Abstract: A tantalum or niobium powder that can provide a porous sintered tantalum or niobium body having a large surface area and involving a lower risk of failure to form a solid electrolyte film, where a material serving as a tantalum or niobium ion source is dissolved in a molten salt, upon which a reducing agent is allowed to act, resulting in reduction to the metal state of the tantalum or niobium ions dissolved in the molten salt, to thereby obtain a tantalum or niobium powder comprising aggregated columnar particles. A tantalum or niobium powder contains radially aggregated particles formed by a plurality of columnar particles aggregated radially.
    Type: Application
    Filed: May 7, 2003
    Publication date: November 6, 2003
    Inventors: Ryosuke O. Suzuki, Rieko Ishii, Tadao Nishiyama, Hitoshi Iijima
  • Powdered tantalum, niobium, production process thereof, and porous sintered body and solid electrolytic capacitor using the powdered tantalum or niobium
    Patent number: 6563695
    Abstract: A tantalum or niobium powder that can provide a porous sintered tantalum or niobium body having a large surface area and involving a lower risk of failure to form a solid electrolyte film, where a material serving as a tantalum or niobium ion source is dissolved in a molten salt, upon which a reducing agent is allowed to act, resulting in reduction to the metal state of the tantalum or niobium ions dissolved in the molten salt, to thereby obtain a tantalum or niobium powder comprising aggregated columnar particles. A tantalum or niobium powder contains radially aggregated particles formed by a plurality of columnar particles aggregated radially.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: May 13, 2003
    Assignee: Cabot Supermetals K.K.
    Inventors: Ryosuke O. Suzuki, Rieko Ishii, Tadao Nishiyama, Hitoshi Iijima