Granted Patent
Utility
US 6,592,196 · App. 09/986,734
Drive method for ink jet head
Inventors:
Yoshitaka Akiyama, Nobuhiro Noto, Yutaka Shoji, Hiroshi Takahagi, Osamu Machida, Yoshinari Suzuki
Patented Case
View Patent ↗
Granted: Jul 15, 2003
Filed: Nov 9, 2001
Inventors
Yoshitaka Akiyama
Nobuhiro Noto
Yutaka Shoji
Hiroshi Takahagi
Osamu Machida
Yoshinari Suzuki
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.