Granted Patent
Utility
US 4,835,080 · App. 07/059,955
Photoreceptor having photosensitive layer comprising a brominated anthanthrone of specified x-ray spectrum
Inventors:
Yoshiaki Takei, Eiichi Kijima, Satoshi Goto, Hiroyuki Nomori
Patented Case
View Patent ↗
Granted: May 30, 1989
Filed: Jun 9, 1987
Inventors
Yoshiaki Takei
Eiichi Kijima
Satoshi Goto
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.