Granted Patent
Utility
US 5,982,413 · App. 08/627,127
Mixed analog-digital service distribution system and method
Inventors:
Toshio Irie, Tetsuo Tachibana, Toshiyuki Hijikata, Tatsuru Nakagaki, Masayuki Yamanaka, Katsutoshi Inoko, Hiroyuki Suzuki
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Apr 3, 1996
Inventors
Toshio Irie
Tetsuo Tachibana
Toshiyuki Hijikata
Tatsuru Nakagaki
Masayuki Yamanaka
Katsutoshi Inoko
Hiroyuki Suzuki
Assignee (at issue)
Fujitsu Limited
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.