Granted Patent
Utility
US 5,568,092 · App. 08/449,528
Attenuated feedback type differential amplifier
Inventors:
Toshifumi Shimizu, Hiroshi Narikawa, Yoshiyuki Tamura
Patented Case
View Patent ↗
Granted: Oct 22, 1996
Filed: May 24, 1995
Inventors
Toshifumi Shimizu
Hiroshi Narikawa
Yoshiyuki Tamura
Assignee (at issue)
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.