Granted Patent
Utility
US 6,196,655 · App. 08/123,269
Ink-jet recording apparatus and recovery process method of the same
Inventors:
Shinichi Hirasawa, Koichi Sato, Koji Terasawa, Akira Miyakawa, Tsutomu Abe, Yoshifumi Hattori
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Sep 20, 1993
Inventors
Shinichi Hirasawa
Koichi Sato
Koji Terasawa
Akira Miyakawa
Tsutomu Abe
Yoshifumi Hattori
Assignee (at issue)
CANON KABUSHIKI KAISHA
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.