Granted Patent
Utility
US 6,508,537 · App. 09/925,603
Ink jet recording device capable of controlling impact positions of ink droplets in electrical manner
Inventors:
Takahiro Yamada, Shinya Kobayashi, Kunio Satou, Katsunori Kawasumi, Kazuo Shimizu, Hitoshi Kida
Patented Case
View Patent ↗
Granted: Jan 21, 2003
Filed: Aug 10, 2001
Inventors
Takahiro Yamada
Shinya Kobayashi
Kunio Satou
Katsunori Kawasumi
Kazuo Shimizu
Hitoshi Kida
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.