Granted Patent
Utility
US 5,777,425 · App. 08/707,144
Voltage converter for use with a piezoelectric transformer
Inventors:
Yoshihiro Ino, Tetsuo Yoshida, Yoshiaki Fuda, Naoki Wako, Katsunori Kumasaka, Hutoshi Shiotani
Patented Case
View Patent ↗
Granted: Jul 7, 1998
Filed: Sep 3, 1996
Inventors
Yoshihiro Ino
Tetsuo Yoshida
Yoshiaki Fuda
Naoki Wako
Katsunori Kumasaka
Hutoshi Shiotani
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.