Patents by Inventor Masao Hirata

Masao Hirata 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).

  • Electrostatic image-forming process and an apparatus therefor
    Patent number: 4349268
    Abstract: A method of forming an electrostatic image of an original having both black and color portions includes selective elimination of the black portion to produce individual color electrostatic images which can be separately developed with respect to another image of the black portion, thereby increasing the definition and clarity of the resulting reproduction. Apparatus for carrying out the method of the invention are also described in detail.
    Type: Grant
    Filed: June 26, 1980
    Date of Patent: September 14, 1982
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventor: Masao Hirata