Patents by Inventor Taishi Iwai

Taishi Iwai 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).

  • Lithographic plate
    Patent number: 5503953
    Abstract: A lithographic plate includes a substrate made of a polyester film having a light transmittance of 50% or less, a bending angle in the range of 30.degree. to 90.degree., and a rupture strength after being bent of 8 kg/mm.sup.2 or more. Alternatively, a lithographic plate includes a substrate made of a polymer film containing a polyester and a thermoplastic resin incompatible with the polyester, wherein the polymer film is oriented along at least one axis and has minute cavities formed by the orientation, and the density of the film is in the range of 1.05 g/cm.sup.3 to 1.3 g/cm.sup.3.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: April 2, 1996
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Katsuya Ito, Yoshiki Murakami, Ryoya Kobayashi, Taishi Iwai, Kazuhiro Abe, Chikao Morishige, Toshitake Suzuki, Yoshikazu Furuya
  • Polyester film and lithographic plate
    Patent number: RE36287
    Abstract: A lithographic plate includes a substrate made of a polyester film having a light transmittance of 50% or less, a bending angle in the range of 30.degree. to 90.degree., and a rupture strength after being bent of 8 kg/mm.sup.2 or more. Alternatively, a lithographic plate includes a substrate made of a polymer film containing a polyester and a thermoplastic resin incompatible with the polyester, wherein the polymer film is oriented along at least one axis and has minute cavities formed by the orientation, and the density of the film is in the range of 1.05 g/cm.sup.3 to 1.3 g/cm.sup.3.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: August 31, 1999
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Katsuya Ito, Yoshiki Murakami, Ryoya Kobayashi, Taishi Iwai, Kazuhiro Abe, Chikao Morishige, Toshitake Suzuki, Yoshikazu Furuya