Granted Patent
Utility
US 5,606,629 · App. 08/340,384
Figure recognition apparatus
Inventor:
Takahisa Shirakawa
Patented Case
View Patent ↗
Granted: Feb 25, 1997
Filed: Nov 15, 1994
Inventor
Takahisa Shirakawa
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.