Inventor · disambiguated record
Sadashi Tanaka
Also filed as: TANAKA SADASHI
28 granted patents·536 citations·filing 1992–2009
97Inventor score
Top patents by PatentIndex Score
28 records- 0189US6442792B1Vacuum cleanerHITACHI LTD·Filed 2000·Granted Sep 3, 2002·68 cites·23 claims
- 0288US5595473ACentrifugal fluid machineHITACHI LTD·Filed 1994·Granted Jan 21, 1997·39 cites·40 claims
- 0385US5516263ACentrifugal compressor and vaned diffuserHITACHI LTD·Filed 1994·Granted May 14, 1996·50 cites·5 claims
- 0484US7559742B2Inlet casing and suction passage structureHITACHI IND CO LTD·Filed 2005·Granted Jul 14, 2009·16 cites·6 claims
- 0581US5709531ACentrifugal compressor and vaned diffuserHITACHI LTD·Filed 1996·Granted Jan 20, 1998·46 cites·6 claims
- 0680US5752785ADrainage pump station and drainage operation method for drainage pump stationHITACHI LTD·Filed 1995·Granted May 19, 1998·57 cites·20 claims
- 0779US5487621ALarge-depth underground drainage facility and method of running sameHITACHI LTD·Filed 1994·Granted Jan 30, 1996·39 cites·6 claims
- 0878US6102618ALarge-depth underground drainage facility and method of running sameHITACHI LTD·Filed 1999·Granted Aug 15, 2000·38 cites·3 claims
- 0976US6371724B2Centrifugal fluid machineHITACHI LTD·Filed 2001·Granted Apr 16, 2002·13 cites·1 claims
- 1075US7338255B2Turbo-type fluid machine and a stepped seal apparatus to be used thereinHITACHI IND CO LTD·Filed 2005·Granted Mar 4, 2008·14 cites·9 claims
- 1175US5909982ALarge-depth underground drainage facility and method of running sameHITACHI LTD·Filed 1997·Granted Jun 8, 1999·35 cites·25 claims
- 1265US8075260B2Centrifugal turbomachineryAKI TAKASHI·Filed 2007·Granted Dec 13, 2011·7 cites·3 claims
- 1361US6568904B1Fluidal machineHITACHI LTD·Filed 1995·Granted May 27, 2003·22 cites·5 claims
- 1454US5971705ACentrifugal fluid machineHITACHI LTD·Filed 1998·Granted Oct 26, 1999·11 cites·8 claims
- 1554US5857834ACentrifugal fluid machineHITACHI LTD·Filed 1996·Granted Jan 12, 1999·11 cites·24 claims
- 1653US6290460B1Centrifugal fluid machineHITACHI LTD·Filed 2000·Granted Sep 18, 2001·7 cites·2 claims
- 1750US6749397B2Fluidal machineHITACHI LTD·Filed 2002·Granted Jun 15, 2004·4 cites·3 claims
- 1850US6364607B2Centrifugal fluid machineHITACHI LTD·Filed 2001·Granted Apr 2, 2002·6 cites·5 claims
- 1949US8398375B2ImpellerTANAKA KOHEI·Filed 2009·Granted Mar 19, 2013·0 cites·9 claims
- 2048US6312222B1Centrifugal fluid machineHITACHI LTD·Filed 2000·Granted Nov 6, 2001·5 cites·1 claims
- 2144US6162015ACentrifugal type fluid machineHITACHI LTD·Filed 1995·Granted Dec 19, 2000·15 cites·24 claims
- 2243US5360289ADrainage water pumping station and method for operating the sameHITACHI LTD·Filed 1992·Granted Nov 1, 1994·10 cites·12 claims
- 2342US6139266ACentrifugal fluid machineHITACHI LTD·Filed 1999·Granted Oct 31, 2000·6 cites·2 claims
- 2437US5498105ADrainage water pumping station and method for operating the sameHITACHI LTD·Filed 1994·Granted Mar 12, 1996·7 cites·15 claims
- 2536US5733064ADrainage water pumping station and method for operating the sameHITACHI LTD·Filed 1996·Granted Mar 31, 1998·5 cites·3 claims
- 2636US5634740ALarge-depth underground drainage facility and method of running sameHITACHI LTD·Filed 1995·Granted Jun 3, 1997·5 cites·6 claims
- 2730US6132136ADrainage water pumping station and method for operating the sameHITACHI LTD·Filed 1998·Granted Oct 17, 2000·0 cites·11 claims
- 2830US5603587ADrainage water pumping station and method for operating the sameHITACHI LTD·Filed 1995·Granted Feb 18, 1997·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →