Granted Patent
Utility
US 5,355,301 · App. 08/025,422
One-chip type switching power supply device
Inventors:
Akira Saito, Yasurou Motoi, Tsuneo Watanabe
Patented Case
View Patent ↗
Granted: Oct 11, 1994
Filed: Mar 1, 1993
Inventors
Akira Saito
Yasurou Motoi
Tsuneo Watanabe
Assignee (at issue)
FUJI ELECTRIC CO., 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.