Granted Patent
Utility
US 5,391,461 · App. 08/035,097
Optical recording medium and recording method
Inventors:
Tadashi Koike, Shin Aihara, Keiji Ueno, Shinichi Murakami, Sumio Hirose
Patented Case
View Patent ↗
Granted: Feb 21, 1995
Filed: Mar 19, 1993
Inventors
Tadashi Koike
Shin Aihara
Keiji Ueno
Shinichi Murakami
Sumio Hirose
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.