Electrolysis: processes – compositions used therein – and methods – Electrolytic analysis or testing – For nitrogen or nitrogen containing compound
Reexamination Certificate
2005-02-01
2005-02-01
Olsen, Kaj K. (Department: 1753)
Electrolysis: processes, compositions used therein, and methods
Electrolytic analysis or testing
For nitrogen or nitrogen containing compound
C205S784500, C205S785000, C205S787000, C204S406000, C204S424000, C204S425000
Reexamination Certificate
active
06849174
ABSTRACT:
A gas concentration measuring apparatus which has a gas sensor designed to measure, for example, the concentrations of O2and HOxcontained in exhaust emissions of an automotive engine is provided. The apparatus includes a signal processing circuit which converts a current signal outputted from the gas sensor as a function of the concentration of either of O2and NOxinto a voltage signal. The gas sensor and the signal processing circuit are connected electrically through a conductor. The conductor has a length which is determined as a function of a level of the current signal outputted from the gas sensor. The weaker the level of the current signal is, the shorter the length of the conductor. This minimizes addition of electrical noises to the current signal outputted from the gas sensor.
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Translation of the Opposition Statement filed by Siemens on Jul. 13, 2004 and enclosed with EPO Official Communication dated Aug. 3, 2004; 9 pages.
Kato et al; “Performance of Thick Film NOx Sensor on Diesel and Gasoline Engines”; Publication 970858, Society of Automotive Engineers, Inc.
Hada Satoshi
Haseda Satoshi
Kawase Tomoo
Kurokawa Eiichi
Suzuki Toshiyuki
Denso Corporation
Nixon & Vanderhye PC
Olsen Kaj K.
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