Granted Patent
Utility
US 6,556,801 · App. 09/981,249
Image developing unit capable of easily and securely dispersing toner, and image forming apparatus
Inventors:
Takashi Shimaoka, Atsushi Suzuki
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Oct 16, 2001
Inventors
Takashi Shimaoka
Atsushi Suzuki
Assignee (at issue)
TOSHIBA TEC KABUSHIKI KAISHA
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.