Patents by Inventor Masakado Sakai

Masakado Sakai 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).

  • Diffusion transfer photographic process
    Patent number: 4298677
    Abstract: A silver diffusion transfer photographic process using a silver halide photosensitive emulsion layer comprising silver iodochlorobromide or silver iodobromide wherein the iodide comprises from about 6 to 25 mole % of the halide content.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: November 3, 1981
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshihiro Takagi, Masakado Sakai