Granted Patent
Utility
US 6,042,210 · App. 08/695,801
Matrix driving circuit of an ink jet printer and a method of driving the same
Inventors:
Shigenori Suematsu, Takao Matsuoka, Masahiro Shimohori, Eiichi Toyama, Toshio Fuji
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Aug 12, 1996
Inventors
Shigenori Suematsu
Takao Matsuoka
Masahiro Shimohori
Eiichi Toyama
Toshio Fuji
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.