Granted Patent
Utility
US 6,335,069 · App. 09/380,192
Phase-changeable optical recording medium, method of manufacturing the same, and method of recording information on the same
Inventors:
Shuichiro Ogawa, Isao Morimoto, Kazuhiro Nishimura, Masato Terada
Patented Case
View Patent ↗
Granted: Jan 1, 2002
Filed: Aug 26, 1999
Inventors
Shuichiro Ogawa
Isao Morimoto
Kazuhiro Nishimura
Masato Terada
Assignee (at issue)
ASAHI KASEI KABUSHIKI KAISHA
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.