Patents by Inventor Junpei Iwado

Junpei Iwado 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).

  • Patent number: 6821720
    Abstract: A method of producing a thermal-developable photosensitive material is provided, which prevents mixing of materials between layers to ensure that the coating surface is in a good condition. In this method, liquids for forming a photosensitive layer, an intermediate layer and a protective layer are simultaneously applied in a multilayer form on a substrate to produce a thermal-developable photosensitive material. A pH of the intermediate layer coating liquid is adjusted within a range from 5 to 10 and a viscosity of the intermediate layer coating liquid is adjusted within a range from 20 to 150 mPa·s. Moreover, a pH buffering salt is added to the intermediate layer coating liquid.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: November 23, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Junpei Iwado
  • Patent number: 6586171
    Abstract: Since a coating film is cured to some extent by the gelation of the coating film in the chilling-zone process and the first-stage drying in the PAC drying process, then, it is fully dried by the second-stage drying in the HAC drying process, liquid scattering from the surface of the coating film during drying can be prevented, even if the binder is difficult to cure as in the coating film for a thermal-developable light-sensitive material. Thereby, good coating film surface condition and good photographic performance can be obtained.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: July 1, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Junpei Iwado
  • Publication number: 20030073046
    Abstract: A method of producing a thermal-developable photosensitive material is provided, which prevents mixing of materials between layers to ensure that the coating surface is in a good condition. In this method, liquids for forming a photosensitive layer, an intermediate layer and a protective layer are simultaneously applied in a multilayer form on a substrate to produce a thermal-developable photosensitive material. A pH of the intermediate layer coating liquid is adjusted within a range from 5 to 10 and a viscosity of the intermediate layer coating liquid is adjusted within a range from 20 to 150 mPa·s. Moreover, a pH buffering salt is added to the intermediate layer coating liquid.
    Type: Application
    Filed: October 2, 2002
    Publication date: April 17, 2003
    Applicant: FUJI PHOTO FILM,CO., LTD.
    Inventor: Junpei Iwado