Granted Patent
Utility
US 4,537,847 · App. 06/640,205
Disazo photoreceptors for electrophotography
Inventors:
Jiro Takahashi, Kiyoshi Sawada, Akira Kinoshita, Tawara Komamura, Satoshi Goto, Osamu Sasaki
Patented Case
View Patent ↗
Granted: Aug 27, 1985
Filed: Aug 10, 1984
Inventors
Jiro Takahashi
Kiyoshi Sawada
Akira Kinoshita
Tawara Komamura
Satoshi Goto
Osamu Sasaki
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.