Granted Patent
Utility
US 5,909,222 · App. 08/536,341
Data transformation device
Inventor:
Toshiaki Umeshima
Patented Case
View Patent ↗
Granted: Jun 1, 1999
Filed: Sep 29, 1995
Inventor
Toshiaki Umeshima
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.