Granted Patent
Utility
US 4,812,698 · App. 07/102,397
Piezoelectric bending actuator
Inventors:
Yukio Chida, Tetsunhiko Nishimura, Yasuo Oguri
Patented Case
View Patent ↗
Granted: Mar 14, 1989
Filed: Sep 29, 1987
Inventors
Yukio Chida
Tetsunhiko Nishimura
Yasuo Oguri
Assignee (at issue)
Mitsubishi Chemical Industries, 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.