Granted Patent
Utility
US 6,083,667 · App. 09/012,457
Optical recording medium
Inventors:
Akira Nishizawa, Kanji Kayanuma
Patented Case
View Patent ↗
Granted: Jul 4, 2000
Filed: Jan 23, 1998
Inventors
Akira Nishizawa
Kanji Kayanuma
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.