Granted Patent
Utility
US 6,707,783 · App. 10/287,582
Optical recording medium and recording/erasing method
Inventor:
Takashi Ohno
Patented Case
View Patent ↗
Granted: Mar 16, 2004
Filed: Nov 5, 2002
Inventor
Takashi Ohno
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.