Patents by Inventor Yoichi Sakajiri

Yoichi Sakajiri 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: 8392719
    Abstract: A character string indicating a date obtained from a calendar clock is combined with a fixed-value character string held internally to generate a hash character string using a hash function. The hash character string is compared with an input character string. When there is a match, the body portion of an application software is executed. When there is no match, a process is terminated without executing the body portion of the application software.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: March 5, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomohito Kawai, Yoichi Sakajiri, Yoshiro Miyajima
  • Publication number: 20080276312
    Abstract: A character string indicating a date obtained from a calendar clock is combined with a fixed-value character string held internally to generate a hash character string using a hash function. The hash character string is compared with an input character string. When there is a match, the body portion of an application software is executed. When there is no match, a process is terminated without executing the body portion of the application software.
    Type: Application
    Filed: October 19, 2007
    Publication date: November 6, 2008
    Inventors: Tomohito KAWAI, Yoichi Sakajiri, Yoshiro Miyajima