Inventor · disambiguated record
Yasumasa Akazawa
Also filed as: AKAZAWA YASUMASA
13 granted patents·1 pending application·310 citations·filing 1994–2001
93Inventor score
Top patents by PatentIndex Score
14 records- 0182US5615716AEngine coolant changing apparatusFiled 1996·Granted Apr 1, 1997·27 cites·2 claims
- 0279US5573045AEngine coolant changing apparatusFiled 1995·Granted Nov 12, 1996·33 cites·5 claims
- 0379US5509972AAir-conditioner cleaning methodFiled 1994·Granted Apr 23, 1996·65 cites·8 claims
- 0476US5911742AAttachment to air-conditionerFiled 1997·Granted Jun 15, 1999·48 cites·8 claims
- 0568US6047714AAir intake passage cleaning method and its apparatusFiled 1998·Granted Apr 11, 2000·22 cites·6 claims
- 0667US5737937AAccessory structure for spray cleaning a heat exchanger in a vehicle air-conditionerFiled 1996·Granted Apr 14, 1998·27 cites·16 claims
- 0765US5664423AAttachment for vehicle air-conditioning apparatusFiled 1996·Granted Sep 9, 1997·25 cites·11 claims
- 0856US6227215B1Piping cleaning deviceFiled 1999·Granted May 8, 2001·15 cites·6 claims
- 0952US6135129AAir intake passage cleaning method and its apparatusFiled 1999·Granted Oct 24, 2000·10 cites·6 claims
- 1052US2002017999A1Searching systemFiled 2001·Application pending·0 cites
- 1147US6168140B1Air treating deviceFiled 1998·Granted Jan 2, 2001·16 cites·8 claims
- 1240US6230359B1Air intake passage cleaning method and its apparatusFiled 1999·Granted May 15, 2001·6 cites·8 claims
- 1337US6065301AAccessory structure for vehicle air-conditionerFiled 1999·Granted May 23, 2000·12 cites·8 claims
- 1431USRE37402EAccessory structure for spray cleaning a heat exchanger in a vehicle air-conditionerFiled 1999·Granted Oct 9, 2001·4 cites·32 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →