Granted Patent
Utility
US 4,639,604 · App. 06/851,293
Method and apparatus for detecting an edge position of a pattern and eliminating overlapping pattern signals
Inventors:
Seiro Murakami, Muneki Hamajima
Patented Case
View Patent ↗
Granted: Jan 27, 1987
Filed: Apr 4, 1986
Inventors
Seiro Murakami
Muneki Hamajima
Assignee (at issue)
Nippon Kagaku K. K.
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.