Inventor · disambiguated record
Keiichi Saji
Also filed as: SAJI KEIICHI
11 granted patents·2 pending applications·524 citations·filing 1982–2007
93Inventor score
Files withTOYODA CHUO KENKYUSHO KK9DENSO CORP1TOYOTA CHUO KENKYUSHO KK1TOYOTA MOTOR CO LTD1YAZAKI CORP1
Top patents by PatentIndex Score
13 records- 0198US4993386AOperation control system for internal combustion engineTOYODA CHUO KENKYUSHO KK·Filed 1989·Granted Feb 19, 1991·236 cites·20 claims
- 0290US4510036ALimiting electric current type oxygen sensor with heater and limiting electric current type oxygen concentration detecting device using the sameTOYODA CHUO KENKYUSHO KK·Filed 1983·Granted Apr 9, 1985·61 cites·8 claims
- 0387US4626338AEquipment for detecting oxygen concentrationTOYODA CHUO KENKYUSHO KK·Filed 1982·Granted Dec 2, 1986·54 cites·30 claims
- 0481US4595485ALimiting electric current type oxygen sensorTOYODA CHUO KENKYUSHO KK·Filed 1985·Granted Jun 17, 1986·46 cites·31 claims
- 0581US4472262ALimiting electric current type oxygen concentration detector applied with temperature compensationTOYODA CHUO KENKYUSHO KK·Filed 1982·Granted Sep 18, 1984·40 cites·12 claims
- 0679US4844788AWide-range air/fuel ratio sensor and detector using the sameTOYODA CHUO KENKYUSHO KK·Filed 1988·Granted Jul 4, 1989·23 cites·14 claims
- 0771US7153412B2Electrodes, electrochemical elements, gas sensors, and gas measurement methodsTOYOTA CHUO KENKYUSHO KK·Filed 2002·Granted Dec 26, 2006·10 cites·18 claims
- 0866US6607643B2NOx gas detecting apparatusTOYODA CHUO KENKYUSHO KK·Filed 2001·Granted Aug 19, 2003·6 cites·8 claims
- 0957US5480535AThin film multilayered air/fuel ratio sensorTOYODA CHUO KENKYUSHO KK·Filed 1993·Granted Jan 2, 1996·21 cites·11 claims
- 1054US4576705AApparatus with polarographic sensor to detect concentrations of plurality of gas componentsTOYODA CHUO KENKYUSHO KK·Filed 1984·Granted Mar 18, 1986·14 cites·11 claims
- 1148US2005061670A1NOx sensing cell, manufacturing method for the NOx sensing cell, and NOx sensing device including the NOx sensing cellDENSO CORP·Filed 2004·Application pending·0 cites
- 1247US5814719ALimiting current type oxygen sensorYAZAKI CORP·Filed 1997·Granted Sep 29, 1998·13 cites·5 claims
- 1335US2009050493A1Gas Sensor, Fuel Supply System Using the Same, and Method of Using Gas SensorTOYOTA MOTOR CO LTD·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →