Assignee
RICOH SEIKI CO LTD
JP·11 granted patents·324 citations·filing 1984–1997
Top patents by PatentIndex Score
11 records- 0197US4580439ALow power gas detectorRICOH SEIKI CO LTD·Filed 1984·Granted Apr 8, 1986·100 cites·16 claims
- 0290US5551283AAtmosphere measuring device and flow sensorRICOH SEIKI CO LTD·Filed 1994·Granted Sep 3, 1996·93 cites·20 claims
- 0379US5423212AFlow sensorRICOH SEIKI CO LTD·Filed 1993·Granted Jun 13, 1995·40 cites·9 claims
- 0470US5406841AFlow sensorRICOH SEIKI CO LTD·Filed 1993·Granted Apr 18, 1995·29 cites·8 claims
- 0565US5392647AFlow sensorRICOH SEIKI CO LTD·Filed 1993·Granted Feb 28, 1995·16 cites·6 claims
- 0660US5726357AFlow sensorRICOH SEIKI CO LTD·Filed 1994·Granted Mar 10, 1998·13 cites·8 claims
- 0752US5683546AMethod of etching silicon substrate at different etching rates for different planes of the silicon to form an air bridgeRICOH SEIKI CO LTD·Filed 1993·Granted Nov 4, 1997·18 cites·3 claims
- 0839US5722288AFlow sensorRICOH SEIKI CO LTD·Filed 1996·Granted Mar 3, 1998·5 cites·3 claims
- 0937US5380373AFloating single crystal thin film fabrication methodRICOH SEIKI CO LTD·Filed 1993·Granted Jan 10, 1995·6 cites·19 claims
- 1034US5888761AEtching method for forming air bridge pattern on silicon substrateRICOH SEIKI CO LTD·Filed 1997·Granted Mar 30, 1999·3 cites·2 claims
- 1130US5467651ADrive control apparatus for microsensorRICOH SEIKI CO LTD·Filed 1993·Granted Nov 21, 1995·1 cites·7 claims
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