Granted Patent
Utility
US 6,621,082 · App. 10/171,797
Automatic focusing system for scanning electron microscope equipped with laser defect detection function
Inventors:
Seiji Morita, Mitsuyoshi Sato, Atsushi Uemoto
Patented Case
View Patent ↗
Granted: Sep 16, 2003
Filed: Jun 13, 2002
Inventors
Seiji Morita
Mitsuyoshi Sato
Atsushi Uemoto
Assignee (at issue)
SEIKO INSTRUMENTS 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.