Granted Patent
Utility
US 6,349,013 · App. 09/525,473
Sensor for identifying a magnetic recording medium utilizing rotatable flags which cooperate to enter a cut-out portion in the medium
Inventor:
Masaru Ichimura
Patented Case
View Patent ↗
Granted: Feb 19, 2002
Filed: Mar 15, 2000
Inventor
Masaru Ichimura
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.