Inventor · disambiguated record
Michihiko Aizawa
Also filed as: AIZAWA MICHIHIKO
23 granted patents·327 citations·filing 1976–2004
96Inventor score
Files withHITACHI LTD23
Top patents by PatentIndex Score
23 records- 0173US5282369AMultiple type absorption air conditioning systemHITACHI LTD·Filed 1992·Granted Feb 1, 1994·29 cites·20 claims
- 0273US4912934AHermetically closed circulation type, vapor absorption refrigeratorHITACHI LTD·Filed 1988·Granted Apr 3, 1990·26 cites·17 claims
- 0369US4551991AMulti-effect absorption refrigerating machineHITACHI LTD·Filed 1985·Granted Nov 12, 1985·33 cites·6 claims
- 0468US6813901B2Absorption refrigerator and production method thereofHITACHI LTD·Filed 2001·Granted Nov 9, 2004·5 cites·2 claims
- 0568US6233968B1Absorption refrigerating machineHITACHI LTD·Filed 2000·Granted May 22, 2001·15 cites·4 claims
- 0667US7165418B2Absorption refrigerator and production method thereofHITACHI LTD·Filed 2004·Granted Jan 23, 2007·6 cites·20 claims
- 0759US5463880AAbsorption refrigeratorHITACHI LTD·Filed 1994·Granted Nov 7, 1995·23 cites·22 claims
- 0856US5806337AAbsorption refrigerator and production method thereofHITACHI LTD·Filed 1996·Granted Sep 15, 1998·14 cites·35 claims
- 0954US6122930AAbsorption refrigerating machineHITACHI LTD·Filed 1999·Granted Sep 26, 2000·16 cites·23 claims
- 1054US4857222AAbsorption type refrigerator and absorbing solution thereforHITACHI LTD·Filed 1988·Granted Aug 15, 1989·12 cites·9 claims
- 1154US4078399AAbsorption type refrigeratorHITACHI LTD·Filed 1976·Granted Mar 14, 1978·16 cites·14 claims
- 1253US5275010AControl method and apparatus of absorption chiller heaterHITACHI LTD·Filed 1992·Granted Jan 4, 1994·15 cites·14 claims
- 1350US5517830AMultiple type absorption air conditioning systemHITACHI LTD·Filed 1995·Granted May 21, 1996·13 cites·1 claims
- 1449US5205137AAbsorption air conditionerHITACHI LTD·Filed 1991·Granted Apr 27, 1993·17 cites·23 claims
- 1546US5259202AAbsorption air-conditioning systemHITACHI LTD·Filed 1992·Granted Nov 9, 1993·15 cites·12 claims
- 1645US5447042AMultiple type absorption air conditioning systemHITACHI LTD·Filed 1994·Granted Sep 5, 1995·8 cites·5 claims
- 1744US5964103AAbsorption refrigerator and production method thereofHITACHI LTD·Filed 1998·Granted Oct 12, 1999·8 cites·3 claims
- 1844US5205352AHeat exchanger for condensing vapor into liquid phase, power generating plant using the heat exchanger and absorption refrigerator using the heat exchangerHITACHI LTD·Filed 1992·Granted Apr 27, 1993·12 cites·12 claims
- 1943US5435154AHigh temperature regenerator of an absorption type hot and cold water generator and absorption type hot and cold water generatorHITACHI LTD·Filed 1994·Granted Jul 25, 1995·16 cites·5 claims
- 2042US5218844AAbsorption heat pump apparatus with indoor and outdoor heat exchangersHITACHI LTD·Filed 1991·Granted Jun 15, 1993·12 cites·13 claims
- 2138US6279342B1Absorption refrigerator and production method thereofHITACHI LTD·Filed 1999·Granted Aug 28, 2001·5 cites·18 claims
- 2231US4941329ADouble effect air-cooled absorption refrigerating machineHITACHI LTD·Filed 1989·Granted Jul 17, 1990·7 cites·9 claims
- 2327US5048308AAbsorption refrigeratorHITACHI LTD·Filed 1990·Granted Sep 17, 1991·4 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →