Inventor · disambiguated record
Tamio Ishihara
Also filed as: ISHIHARA TAMIO
13 granted patents·394 citations·filing 1985–2001
94Inventor score
Files withHITACHI LTD13
Top patents by PatentIndex Score
13 records- 0193US6245224B1Water quality management systemHITACHI LTD·Filed 1999·Granted Jun 12, 2001·94 cites·7 claims
- 0291US6444172B2Water quality meter and water quality monitoring systemHITACHI LTD·Filed 2001·Granted Sep 3, 2002·40 cites·6 claims
- 0387US6398930B2Water quality meter and water quality monitoring systemHITACHI LTD·Filed 2001·Granted Jun 4, 2002·28 cites·2 claims
- 0485US6290908B1Water quality meter and water monitoring systemHITACHI LTD·Filed 1999·Granted Sep 18, 2001·47 cites·24 claims
- 0581US5469746AElectromagnetic flow meterHITACHI LTD·Filed 1994·Granted Nov 28, 1995·53 cites·28 claims
- 0669US4683480AX-Y plotter drive roller arrangementHITACHI LTD·Filed 1985·Granted Jul 28, 1987·22 cites·7 claims
- 0765US5526698ACapacitance type electromagnetic flowmeterHITACHI LTD·Filed 1993·Granted Jun 18, 1996·24 cites·27 claims
- 0862US5458003AElectromagnetic flow meterHITACHI LTD·Filed 1992·Granted Oct 17, 1995·25 cites·18 claims
- 0960US5307687AElectromagnetic flowmeterHITACHI LTD·Filed 1992·Granted May 3, 1994·20 cites·12 claims
- 1058US5400659AElectromagnetic flowmeter and manufacture method of sameHITACHI LTD·Filed 1993·Granted Mar 28, 1995·14 cites·8 claims
- 1158USD319071SPlotterHITACHI LTD·Filed 1988·Granted Aug 13, 1991·8 cites·1 claims
- 1248US4577409APen changing apparatus for plotterHITACHI LTD·Filed 1985·Granted Mar 25, 1986·10 cites·16 claims
- 1343US4903045AX-Y plotter for non-perforated paperHITACHI LTD·Filed 1988·Granted Feb 20, 1990·9 cites·8 claims
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