Patents by Inventor Toshihiro Masumoto

Toshihiro Masumoto 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).

  • Image data protection technique
    Patent number: 7050604
    Abstract: An image data processing device allowing both of user side and provider side to obtain benefits, leading to market expansion, is disclosed. When an image content is copied, an additional watermark is inserted into the copied image content. When an additional watermark is detected from input image content data, a further copy of the image content is prohibited.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: May 23, 2006
    Assignee: NEC Corporation
    Inventors: Shiro Fujihara, Toshihiro Masumoto
  • Image data protection technique
    Publication number: 20020061122
    Abstract: An image data processing device allowing both of user side and provider side to obtain benefits, leading to market expansion, is disclosed. When an image content is copied, an additional watermark is inserted into the copied image content. When an additional watermark is detected from input image content data, a further copy of the image content is prohibited.
    Type: Application
    Filed: October 26, 2001
    Publication date: May 23, 2002
    Applicant: NEC Corporation
    Inventors: Shiro Fujihara, Toshihiro Masumoto