Assignee
HITACHI AMERICA LTD RESEARCH A
US·8 granted patents·505 citations·filing 1992–1997
Top patents by PatentIndex Score
8 records- 0199US5894832ACold start engine control apparatus and methodHITACHI AMERICA LTD RESEARCH A·Filed 1997·Granted Apr 20, 1999·154 cites·36 claims
- 0298US5482023ACold start fuel control systemHITACHI AMERICA LTD RESEARCH A·Filed 1994·Granted Jan 9, 1996·135 cites·32 claims
- 0392US5692478AFuel control system for a gaseous fuel internal combustion engine with improved fuel metering and mixing meansHITACHI AMERICA LTD RESEARCH A·Filed 1996·Granted Dec 2, 1997·69 cites·9 claims
- 0489US5806490AFuel control system for a gaseous fuel internal combustion engine with improved fuel metering and mixing meansHITACHI AMERICA LTD RESEARCH A·Filed 1996·Granted Sep 15, 1998·55 cites·15 claims
- 0581US5353765AFuel management system for a gaseous fuel internal combustion engineHITACHI AMERICA LTD RESEARCH A·Filed 1993·Granted Oct 11, 1994·34 cites·15 claims
- 0670US5720266AControl system for a gaseous fuel internal combustion engine utilizing PID gain scheduling parametersHITACHI AMERICA LTD RESEARCH A·Filed 1996·Granted Feb 24, 1998·27 cites·13 claims
- 0757US5215059AMethod and system for reducing engine knock in an internal combustion engineHITACHI AMERICA LTD RESEARCH A·Filed 1992·Granted Jun 1, 1993·24 cites·18 claims
- 0839US5234569AAir/fuel ratio sensor for an internal combustion engineHITACHI AMERICA LTD RESEARCH A·Filed 1992·Granted Aug 10, 1993·7 cites·12 claims
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