Granted Patent
Utility
US 4,944,959 · App. 07/399,441
Process for electrostatic recording comprising charging dielectric sheet to polarity opposite of imaging charge
Inventors:
Hisanori Yagi, Kousuke Hamada, Isamu Nakano, Yoshihiro Nishimura, Hajime Matsubayashi, Hisashi Tani
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: Aug 28, 1989
Inventors
Hisanori Yagi
Kousuke Hamada
Isamu Nakano
Yoshihiro Nishimura
Hajime Matsubayashi
Hisashi Tani
Assignee (at issue)
Kanzaki Paper Manufacturing 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.