William Saito has several patents registered with the US and Japanese patent offices based on his pioneering work within the information and data security industries. Below is a listing of specific patents owned, filed or pending by Saito.

• User authentication system and user authentication method
  

• User authentication system and user authentication method (OTP)
  

• User authentication system and user authentication method (non-OTP)
  

• User authentication system and user authentication method (OOB)
  

• Method and system for secure authentication using mobile electronic devices
  

• Method and system for alternative access using mobile electronic devices
  

• Bookmark managing apparatus and method of managing bookmark
  

• Bookmark summarizing apparatus, method for summarizing bookmarks and program for the same method