Granted Patent
Utility
US 5,280,196 · App. 08/042,940
Magnetic head drive circuit
Inventor:
Eiji Shinozaki
Patented Case
View Patent ↗
Granted: Jan 18, 1994
Filed: Apr 5, 1993
Inventor
Eiji Shinozaki
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.