Granted Patent
Utility
US 6,454,391 · App. 09/915,504
Multi-nozzle ink jet recording device including common electrodes for generating deflector electric field
Inventors:
Shinya Kobayashi, Takahiro Yamada, Hitoshi Kida, Kunio Satou, Katsunori Kawasumi, Kazuo Shimizu
Patented Case
View Patent ↗
Granted: Sep 24, 2002
Filed: Jul 27, 2001
Inventors
Shinya Kobayashi
Takahiro Yamada
Hitoshi Kida
Kunio Satou
Katsunori Kawasumi
Kazuo Shimizu
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.