Granted Patent
Utility
US 6,734,747 · App. 09/679,984
Piezoelectric oscillator
Inventors:
Masayuki Ishikawa, Hideaki Kohzu, Yukio Naito
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Oct 5, 2000
Inventors
Masayuki Ishikawa
Hideaki Kohzu
Yukio Naito
Assignee (at issue)
Toyo Communication Equipment Co., Ltd.
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.