Granted Patent
Utility
US 6,330,405 · App. 09/732,742
Image forming apparatus
Inventors:
Masayoshi Ishii, Hiroyuki Mabuchi, Koji Kato
Patented Case
View Patent ↗
Granted: Dec 11, 2001
Filed: Dec 11, 2000
Inventors
Masayoshi Ishii
Hiroyuki Mabuchi
Koji Kato
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.