Granted Patent
Utility
US 6,138,510 · App. 09/217,561
Piezoelectric vibratory gyroscope utilizing an energy-trapping vibration mode
Inventors:
Tetsuo Yoshida, Naoki Wakou, Hiroshi Abe, Hiroshi Watanabe
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Dec 21, 1998
Inventors
Tetsuo Yoshida
Naoki Wakou
Hiroshi Abe
Hiroshi Watanabe
Assignee (at issue)
TOKIN 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.