Granted Patent
Utility
US 6,681,693 · App. 10/059,296
Image recording apparatus with drum balancing
Inventors:
Toru Kawada, Toshio Tamura, Shiro Kitawaki, Ryuzo Tokimasa
Patented Case
View Patent ↗
Granted: Jan 27, 2004
Filed: Jan 31, 2002
Inventors
Toru Kawada
Toshio Tamura
Shiro Kitawaki
Ryuzo Tokimasa
Assignee (at issue)
DAINIPPON SCREEN MFG. 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.