Granted Patent
Utility
US 5,659,841 · App. 08/580,354
Electrostatic recording control method and electrostatic recording apparatus
Inventors:
Takao Umeda, Hiroyuki Mabuchi, Masayasu Anzai, Shinji Asai, Kozi Kato, Yoshihiro Gunji
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Dec 28, 1995
Inventors
Takao Umeda
Hiroyuki Mabuchi
Masayasu Anzai
Shinji Asai
Kozi Kato
Yoshihiro Gunji
Assignee (at issue)
Hitachi Koki 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.