Granted Patent
Utility
US 5,790,494 · App. 08/536,297
Digital audio recorder and digital audio recording and reproducing system
Inventor:
Minoru Takeda
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Sep 29, 1995
Inventor
Minoru Takeda
Assignee (at issue)
Nippon Precision Circuits Inc.
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.