Granted Patent
Utility
US 6,175,664 · App. 09/210,278
Optical character reader with tangent detection for detecting tilt of image data
Inventor:
Yutaka Nakashima
Patented Case
View Patent ↗
Granted: Jan 16, 2001
Filed: Dec 11, 1998
Inventor
Yutaka Nakashima
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.