Granted Patent
Utility
US 5,481,530 · App. 08/136,677
High density optical recording method and recording medium
Inventors:
Chiga Ueda, Hidemi Yoshida, Masaaki Mizuno
Patented Case
View Patent ↗
Granted: Jan 2, 1996
Filed: Oct 18, 1993
Inventors
Chiga Ueda
Hidemi Yoshida
Masaaki Mizuno
Assignee (at issue)
MITSUBISHI CHEMICAL 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.