Inventor · disambiguated record
Tadashi Iizuka
Also filed as: IIZUKA TADASHI
21 granted patents·571 citations·filing 1974–2003
97Inventor score
Top patents by PatentIndex Score
21 records- 0193US5711165ARefrigerating apparatus and refrigerant compressorHITACHI LTD·Filed 1994·Granted Jan 27, 1998·47 cites·49 claims
- 0290US4944663ARotary compressor having oxidizing and nitriding surface treatmentHITACHI LTD·Filed 1989·Granted Jul 31, 1990·59 cites·15 claims
- 0389US5964581ARefrigerant compressorHITACHI LTD·Filed 1996·Granted Oct 12, 1999·53 cites·31 claims
- 0488US6258293B1Refrigeration cycleHITACHI LTD·Filed 1999·Granted Jul 10, 2001·35 cites·16 claims
- 0585US5417872ALubricant composition, refrigeration apparatus containing same and process for operating the apparatusHITACHI LTD·Filed 1993·Granted May 23, 1995·28 cites·6 claims
- 0682US6029459ARefrigeration cycleHITACHI LTD·Filed 1998·Granted Feb 29, 2000·28 cites·38 claims
- 0781US5553465ARefrigeration apparatus containing lubricant compositionHITACHI LTD·Filed 1994·Granted Sep 10, 1996·24 cites·24 claims
- 0876US6176094B1Refrigerating machine oil composition, and refrigeration and compressor using the refrigerating machine oil compositionHITACHI LTD·Filed 1998·Granted Jan 23, 2001·32 cites·12 claims
- 0974US5478220ACompressor scroll made of silicon containing aluminum alloyHITACHI LTD·Filed 1994·Granted Dec 26, 1995·30 cites·2 claims
- 1073US5087181ASliding structure such as compressor or the likeHITACHI LTD·Filed 1990·Granted Feb 11, 1992·30 cites·27 claims
- 1169US5445753ALubricant for refrigeration compressorsHITACHI LTD·Filed 1993·Granted Aug 29, 1995·16 cites·11 claims
- 1269US5364248ASliding member, a method for producing same, and usages of sameHITACHI LTD·Filed 1993·Granted Nov 15, 1994·32 cites·13 claims
- 1366US5591023ARotary type compressorHITACHI METALS LTD·Filed 1995·Granted Jan 7, 1997·27 cites·4 claims
- 1466US4021102AAuto-refractometerHOYA LENS CO LTD·Filed 1974·Granted May 3, 1977·52 cites·6 claims
- 1562US5346667AMethod of manufacturing sintered aluminum alloy partsHITACHI LTD·Filed 1992·Granted Sep 13, 1994·15 cites·9 claims
- 1658US7128528B2Bearings for CO2 refrigerant compressor use, compressor using the same, and applications of the sameTOYO TANSO CO·Filed 2003·Granted Oct 31, 2006·8 cites·23 claims
- 1757US5090882ARotary fluid machine having hollow vanes and refrigeration apparatus incorporating the rotary fluid machineHITACHI LTD·Filed 1990·Granted Feb 25, 1992·18 cites·11 claims
- 1850US5387272AHighly ductile sintered aluminum alloy, method for production thereof and use thereofHITACHI LTD·Filed 1992·Granted Feb 7, 1995·11 cites·17 claims
- 1945US5494423ARotary compressor and blade tip structureHITACHI LTD·Filed 1995·Granted Feb 27, 1996·12 cites·8 claims
- 2045US5423664AIron-base alloy for rotary type compressorsHITACHI LTD·Filed 1994·Granted Jun 13, 1995·12 cites·23 claims
- 2135US3953130AAutomatic digital indicating lens meterHOYA LENS CO LTD·Filed 1974·Granted Apr 27, 1976·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →