Granted Patent
Utility
US 6,507,557 · App. 09/527,850
Optical recording medium and recording method therefor
Inventors:
Hirotoshi Ohno, Fumitaka Tsuji
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Mar 17, 2000
Inventors
Hirotoshi Ohno
Fumitaka Tsuji
Assignee (at issue)
Victor Company of Japan, 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.