Patents by Inventor Shuzo Inada

Shuzo Inada 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).

  • Expanded particulate material of polyolefin resin
    Patent number: 4275023
    Abstract: Expanded particles of a crosslinked polyolefin resin, each particle with uniformly spherical shape, having an average diameter of 1.4 to 5.5 mm, an average expansion ratio of 18 to 37 and specific compression coefficient of 1.6 .times. 10.sup.-3 to 4.0 .times. 10.sup.-3, are found to be produced by two-step foaming operations. They are useful for various purposes such as filtrating material, fillers in stuffed specimens and, especially for preparation of molded articles having constricted portions, giving excellent moldings having smooth surface without failure at corner or edge portions.
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: June 23, 1981
    Assignee: Asahi-Dow Limited
    Inventors: Hiroshi Shimizu, Hiroshi Sato, Nobuo Miura, Shuzo Inada
  • Expanded particulate material of polyolefin resin
    Patent number: 4247650
    Abstract: Expanded particles of a crosslinked polyolefin resin, each particle with uniformly spherical shape, having an average diameter of 1.4 to 5.5 mm, an average expansion ratio of 18 to 37 and specific compression coefficient of 1.6.times.10.sup.-3 to 4.0.times.10.sup.-3, are found to be produced by two-step foaming operations. They are useful for various purposes such as filtrating material, fillers in stuffed specimens and, especially for preparation of molded articles having constricted portions, giving excellent moldings having smooth surface without failure at corner or edge portions.
    Type: Grant
    Filed: March 5, 1980
    Date of Patent: January 27, 1981
    Assignee: Ashi-Dow Limited
    Inventors: Hiroshi Shimizu, Hiroshi Sato, Nobuo Miura, Shuzo Inada