Granted Patent
Utility
US 6,181,503 · App. 08/991,557
Magnetic disk device using a contact start stop system
Inventors:
Yuji Tsukamoto, Ken Ajiki
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Dec 16, 1997
Inventors
Yuji Tsukamoto
Ken Ajiki
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.