Granted Patent
Utility
US 5,947,389 · App. 08/945,660
Variable nozzle hole type fuel injection nozzle
Inventors:
Toshiyuki Hasegawa, Shinya Wozaki, Takeshi Miyamoto, Masanori Amemori, Takashi Kobayashi
Patented Case
View Patent ↗
Granted: Sep 7, 1999
Filed: Oct 24, 1997
Inventors
Toshiyuki Hasegawa
Shinya Wozaki
Takeshi Miyamoto
Masanori Amemori
Takashi Kobayashi
Assignee (at issue)
Zexel GmbH
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.