Granted Patent
Utility
US 6,690,225 · App. 10/349,107
DC offset cancel circuit
Inventors:
Fumitaka Kondo, Shinji Saito
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Jan 23, 2003
Inventors
Fumitaka Kondo
Shinji Saito
Assignee (at issue)
Fujitsu Limited
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.