Granted Patent
Utility
US 5,891,016 · App. 08/741,467
Fluorescence endoscope having an exciting light filter and a fluorescence filter
Inventors:
Tetsuya Utsui, Rensuke Adachi, Hirohisa Ueda, Hiroshi Sano
Patented Case
View Patent ↗
Granted: Apr 6, 1999
Filed: Oct 30, 1996
Inventors
Tetsuya Utsui
Rensuke Adachi
Hirohisa Ueda
Hiroshi Sano
Assignee (at issue)
Asahi Kogaku Kogyo 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.