Granted Patent
Utility
US 4,424,266 · App. 06/305,029
Layered electrophotographic photosensitive element having hydrazone charge transport material
Inventors:
Seiji Kurihara, Satoshi Goto, Tsuneo Wada, Akira Kinoshita, Yoshiaki Takei, Naoko Akashi, Hiroyuki Nomori
Patented Case
View Patent ↗
Granted: Jan 3, 1984
Filed: Sep 23, 1981
Inventors
Seiji Kurihara
Satoshi Goto
Tsuneo Wada
Akira Kinoshita
Yoshiaki Takei
Naoko Akashi
Hiroyuki Nomori
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.