Granted Patent
Utility
US 5,523,639 · App. 08/284,246
Electrostatic actuator having ferroelectrics in which residual dielectric polarization is formed
Inventors:
Iwao Okamoto, Isatake Kaitsu, Minoru Takahashi
Patented Case
View Patent ↗
Granted: Jun 4, 1996
Filed: Aug 2, 1994
Inventors
Iwao Okamoto
Isatake Kaitsu
Minoru Takahashi
Assignee (at issue)
Fujitsu Limited
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.