Granted Patent
Utility
US 5,532,621 · App. 08/360,056
Output buffer circuit, input buffer circuit and bi-directional buffer circuit for plural voltage systems
Inventors:
Kenichiro Kobayashi, Hisaya Keida
Patented Case
View Patent ↗
Granted: Jul 2, 1996
Filed: Dec 20, 1994
Inventors
Kenichiro Kobayashi
Hisaya Keida
Assignee (at issue)
Kawasaki Steel 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.