Granted Patent
Utility
US 4,562,447 · App. 06/580,754
Ion modulating electrode
Inventors:
Noriyoshi Tarumi, Haruo Iwahashi, Masahiko Matsunawa, Hiroshi Tokunaga
Patented Case
View Patent ↗
Granted: Dec 31, 1985
Filed: Feb 17, 1984
Inventors
Noriyoshi Tarumi
Haruo Iwahashi
Masahiko Matsunawa
Hiroshi Tokunaga
Assignee (at issue)
Konishiroku Photo Industry Co., 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.