Granted Patent
Utility
US 6,223,285 · App. 08/957,051
Method and system for transferring information using an encryption mode indicator
Inventors:
Teruyoshi Komuro, Yoshitomo Osawa, Hisato Shima, Tomoyuki Asano
Patented Case
View Patent ↗
Granted: Apr 24, 2001
Filed: Oct 24, 1997
Inventors
Teruyoshi Komuro
Yoshitomo Osawa
Hisato Shima
Tomoyuki Asano
Assignees (at issue)
SONY CORPORATION OF JAPAN
SONY ELECTRONICS INC.
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.