Granted Patent
Utility
US 5,898,346 · App. 08/756,035
Dual-band nonreversible circuit device comprising two nonreversible circuit elements contained in a single housing to be operable in different frequency bands
Inventors:
Koji Kamei, Atsushi Furuta, Norihiko Ono, Shigeyoshi Yoshida, Kenji Takamoro
Patented Case
View Patent ↗
Granted: Apr 27, 1999
Filed: Nov 26, 1996
Inventors
Koji Kamei
Atsushi Furuta
Norihiko Ono
Shigeyoshi Yoshida
Kenji Takamoro
Assignees (at issue)
TOKIN CORPORATION
NEC 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.