Granted Patent
Utility
US 6,647,777 · App. 09/529,594
Flow rate sensor, flow meter, and discharge rate control apparatus for liquid discharge machines
Inventors:
Hirofumi Kotaka, Atsushi Koike, Kiyoshi Yamagishi, Toshiaki Kawanishi, Kenji Tomonari, Shinichi Inoue, Yukihiro Tochio, Hiromitsu Miyajima
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Apr 13, 2000
Inventors
Hirofumi Kotaka
Atsushi Koike
Kiyoshi Yamagishi
Toshiaki Kawanishi
Kenji Tomonari
Shinichi Inoue
Yukihiro Tochio
Hiromitsu Miyajima
Assignee (at issue)
MITSUI MINING & SMELTING 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.