Granted Patent
Utility
US 6,538,363 · App. 09/964,362
Method of manufacturing a piezoelectric element
Inventors:
Hidetomo Nagahara, Toshiharu Sato, Akihisa Adachi, Kiyohide Amemiya, Kazuhide Shioya, Emiko Igaki, Masakazu Tanahashi
Patented Case
View Patent ↗
Granted: Mar 25, 2003
Filed: Sep 28, 2001
Inventors
Hidetomo Nagahara
Toshiharu Sato
Akihisa Adachi
Kiyohide Amemiya
Kazuhide Shioya
Emiko Igaki
Masakazu Tanahashi
Assignee (at issue)
SUMITOMO ELECTRIC 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.