Patents by Inventor Daisuke Yumita

Daisuke Yumita 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).

  • Telephone, telephone security control method, telephone security control program and program recording medium
    Patent number: 7873160
    Abstract: Disclosed is a telephone to be installed in a house or an office and capable of effectively preventing leakage of data stored in or unauthorized use of the telephone. For this end, a security button 15 is provided for inhibiting the use of all or a part of the stored data in or functions of the telephone. The security button 15 enables the user to set the security condition by a single push-down operation or choose desired security levels by continuous operations. An LED may be installed in the security button 15 to emit light in different colors or patterns for respective security levels.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: January 18, 2011
    Assignee: NEC Infrontia Corporation
    Inventor: Daisuke Yumita
  • TELEPHONE, TELEPHONE SECURITY CONTROL METHOD, TELEPHONE SECURITY CONTROL PROGRAM AND PROGRAM RECORDING MEDIUM
    Publication number: 20090110186
    Abstract: Disclosed is a telephone to be installed in a house or an office and capable of effectively preventing leakage of data stored in or unauthorized use of the telephone. For this end, a security button 15 is provided for inhibiting the use of all or a part of the stored data in or functions of the telephone. The security button 15 enables the user to set the security condition by a single push-down operation or choose desired security levels by continuous operations. An LED may be installed in the security button 15 to emit light in different colors or patterns for respective security levels.
    Type: Application
    Filed: September 12, 2008
    Publication date: April 30, 2009
    Applicant: NEC Infrontia Corporation
    Inventor: Daisuke YUMITA
  • Telephone
    Patent number: D664519
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: July 31, 2012
    Assignee: NEC Infrontia Corporation
    Inventors: Masafuku Akatsu, Eiichi Taniguchi, Tadamine Toh, Masaru Kunii, Jun Tamatsu, Tomotaka Sano, Kouji Takeuchi, Daisuke Yumita, Naoki Ozawa