Granted Patent
Utility
US 6,632,583 · App. 09/730,514
Optical recording medium and production method of the same
Inventors:
Haruo Kunitomo, Takashi Ohno
Patented Case
View Patent ↗
Granted: Oct 14, 2003
Filed: Dec 5, 2000
Inventors
Haruo Kunitomo
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.