Granted Patent
Utility
US 6,346,862 · App. 09/263,295
Quartz oscillation circuit and quartz oscillation integrated circuit device
Inventors:
Eiichi Hasegawa, Haruhiko Otsuka
Patented Case
View Patent ↗
Granted: Feb 12, 2002
Filed: Mar 5, 1999
Inventors
Eiichi Hasegawa
Haruhiko Otsuka
Assignee (at issue)
Nippon Precision Circuits 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.