Granted Patent
Utility
US 6,788,341 · App. 09/734,728
Data recording apparatus
Inventors:
Hiroshi Tsunoda, Akira Toba
Patented Case
View Patent ↗
Granted: Sep 7, 2004
Filed: Dec 13, 2000
Inventors
Hiroshi Tsunoda
Akira Toba
Assignee (at issue)
SANYO ELECTRIC CO., LTD.
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.