Patents by Inventor Shuzo Iyoshi

Shuzo Iyoshi 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).

  • Gas generant composition
    Patent number: 6149745
    Abstract: Provided is a gas generant composition which is improved in the self-retainability of a solid residue and has an excellent combustion speed. The gas generant composition contains a fuel comprising a metal azide or an organic compound, an oxidizing agent, and at least one additive selected from a ceramic whisker or fiber of aluminum borate, potassium titanate, alumina, aluminum oxide, zirconium oxide, and zinc oxide.
    Type: Grant
    Filed: May 12, 1998
    Date of Patent: November 21, 2000
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Naoki Matsuda, Norimasa Hirata, Shuzo Iyoshi
  • Gas generant composition
    Patent number: 5780767
    Abstract: Provided is a gas generant composition which is improved in the self-retainabiity of a solid residue and has an excellent combustion speed. The gas generant composition contains a fuel comprising a metal azide or an organic compound, an oxidizing agent, and at least one additive selected from a ceramic whisker or fiber of aluminum borate, potassium titanate, alumina, aluminum oxide, zirconium oxide, and zinc oxide.
    Type: Grant
    Filed: December 27, 1995
    Date of Patent: July 14, 1998
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Naoki Matsuda, Norimasa Hirata, Shuzo Iyoshi
  • Large diameter optical disk substrate made of polycarbonate
    Patent number: 4764331
    Abstract: A disk substrate for a high-density information recording medium made by injection molding from polycarbonate is disclosed having an average molecular weight from 14,000 to 22,000 and having a thickness from 1.0 to 2.0 mm and a circular recording area of between two concentric circles having a radii of 40 to 170 mm, respectively. The birefringence of the substrate within the recording area is less than 25 mm and is uniformly distributed.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: August 16, 1988
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Shinji Tokuhara, Yoshio Onizawa, Shuzo Iyoshi