Granted Patent
Utility
US 5,605,483 · App. 08/451,766
Electron source and production thereof, and image-forming apparatus and production thereof
Inventors:
Toshihiko Takeda, Ichiro Nomura, Hidetoshi Suzuki, Yoshikazu Banno, Tetsuya Kaneko
Patented Case
View Patent ↗
Granted: Feb 25, 1997
Filed: May 26, 1995
Inventors
Toshihiko Takeda
Ichiro Nomura
Hidetoshi Suzuki
Yoshikazu Banno
Tetsuya Kaneko
Assignee (at issue)
CANON 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.