Granted Patent
Utility
US 6,735,325 · App. 10/122,550
Identification data insertion and detection system for digital data
Inventor:
Yutaka Wakasu
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Apr 15, 2002
Inventor
Yutaka Wakasu
Assignee (at issue)
NEC CORPORATION
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.