Granted Patent
Utility
US 6,288,205 · App. 09/570,576
Polycarbonate resin, optical information recording medium substrate comprising the same, and optical information recording medium
Inventors:
Masaaki Miyamoto, Motonori Ueda, Kiyoji Kuma, Ryuji Uchimura, Yoshitaka Shiraishi, Toshimitsu Inoue
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: May 12, 2000
Inventors
Masaaki Miyamoto
Motonori Ueda
Kiyoji Kuma
Ryuji Uchimura
Yoshitaka Shiraishi
Toshimitsu Inoue
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.