Granted Patent
Utility
US 6,411,591 · App. 09/485,846
Optical recording medium and optical memory device
Inventors:
Koichi Moritani, Akemi Hirotsune, Motoyasu Terao, Yasushi Miyauchi, Toshimichi Shintani, Takashi Naito, Takashi Namekawa, Hiroki Yamamoto
Patented Case
View Patent ↗
Granted: Jun 25, 2002
Filed: Feb 17, 2000
Inventors
Koichi Moritani
Akemi Hirotsune
Motoyasu Terao
Yasushi Miyauchi
Toshimichi Shintani
Takashi Naito
Takashi Namekawa
Hiroki Yamamoto
Assignees (at issue)
HITACHI, LTD.
HITACHI MAXELL, LTD.
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.