Granted Patent
Utility
US 5,173,162 · App. 07/637,554
Multi-layered electrostrictive effect element
Inventors:
Atsushi Hagimura, Mutsuo Nakajima, Kunio Nishihara, Ikuo Inage
Patented Case
View Patent ↗
Granted: Dec 22, 1992
Filed: Jan 4, 1991
Inventors
Atsushi Hagimura
Mutsuo Nakajima
Kunio Nishihara
Ikuo Inage
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.