Granted Patent
Utility
US 6,746,095 · App. 09/956,861
Multinozzle ink jet recording device capable of identifying defective nozzle
Inventors:
Shinya Kobayashi, Takahiro Yamada, Hitoshi Kida, Kunio Satou, Katsunori Kawasumi, Kazuo Shimizu
Patented Case
View Patent ↗
Granted: Jun 8, 2004
Filed: Sep 21, 2001
Inventors
Shinya Kobayashi
Takahiro Yamada
Hitoshi Kida
Kunio Satou
Katsunori Kawasumi
Kazuo Shimizu
Assignee (at issue)
Hitachi Printing Solutions, 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.