Takehisa Ishida

5 Patents

• US124661972025

  Data Protector, Data Protection Seal, and Drawing Device

  Sony Group Corporation

  0 cites
• US121120802024

  User Authentication for Image Forming Devices

  TOSHIBA TEC KABUSHIKI KAISHA

  0 cites
• US119930942024

  Reversible Recording Medium and Exterior Member

  Sony Corporation

  0 cites
• US118612462024

  System and Methods for Determining Whether an Execution Instruction Is Associated with a Target User

  TOSHIBA TEC KABUSHIKI KAISHA

  0 cites
• US116958852023

  Image Forming Device

  TOSHIBA TEC KABUSHIKI KAISHA

  0 cites