Granted Patent
Utility
US 6,139,980 · App. 08/966,891
Reading method of reading information from a recording medium and medium used therefor
Inventor:
Koji Matsumoto
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Nov 10, 1997
Inventor
Koji Matsumoto
Assignee (at issue)
Fujitsu Limited
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.