Granted Patent
Utility
US 5,814,719 · App. 08/788,758
Limiting current type oxygen sensor
Inventors:
Takayuki Suzuki, Hozumi Futata, Koji Moriya, Takahiro Sako, Hideaki Takahashi, Keiichi Saji
Patented Case
View Patent ↗
Granted: Sep 29, 1998
Filed: Jan 24, 1997
Inventors
Takayuki Suzuki
Hozumi Futata
Koji Moriya
Takahiro Sako
Hideaki Takahashi
Keiichi Saji
Assignees (at issue)
YAZAKI CORPORATION
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
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.