Inventor · disambiguated record
Masami Kawashima
Also filed as: KAWASHIMA MASAMI
4 granted patents·4 pending applications·48 citations·filing 1987–2010
75Inventor score
Top patents by PatentIndex Score
8 records- 0179US7975524B2Oxygen sensor inspection method and apparatus and oxygen sensor production methodHITACHI LTD·Filed 2008·Granted Jul 12, 2011·7 cites·7 claims
- 0268US7302828B2Oxygen sensorHITACHI LTD·Filed 2005·Granted Dec 4, 2007·2 cites·12 claims
- 0359US5006221AOxygen concentration-detecting apparatusJAPAN ELECTRONIC CONTROL SYST·Filed 1989·Granted Apr 9, 1991·22 cites·18 claims
- 0452US4773376AOxygen gas concentration-detecting apparatus and air-fuel ratio-controlling apparatus using same in internal combustion engineJAPAN ELECTRONIC CONTROL SYST·Filed 1987·Granted Sep 27, 1988·17 cites·21 claims
- 0545US2007084725A1Oxygen sensorHITACHI LTD·Filed 2006·Application pending·0 cites
- 0645US2007108051A1Oxygen sensorHITACHI LTD·Filed 2006·Application pending·0 cites
- 0738US2009312938A1Gas sensor, oxygen sensor and air-fuel ratio control systemHITACHI LTD·Filed 2009·Application pending·0 cites
- 0836US2010236925A1Ceramic structure and gas sensor including the ceramic structureHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →