Granted Patent
Utility
US 6,292,321 · App. 09/105,267
Drive circuits for a magnetic recording device
Inventor:
Shigekazu Miyake
Patented Case
View Patent ↗
Granted: Sep 18, 2001
Filed: Jun 26, 1998
Inventor
Shigekazu Miyake
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.