Granted Patent
Utility
US 4,521,788 · App. 06/452,097
Ink jet printing head
Inventors:
Yoshiaki Kimura, Taketo Nozu, Yasuhiko Tanaka
Patented Case
View Patent ↗
Granted: Jun 4, 1985
Filed: Dec 22, 1982
Inventors
Yoshiaki Kimura
Taketo Nozu
Yasuhiko Tanaka
Assignee (at issue)
Konishiroku Photo Industry 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.