Inventor · disambiguated record
Naoto Katsumata
Also filed as: KATSUMATA NAOTO
5 granted patents·152 citations·filing 1982–1999
83Inventor score
Files withHITACHI LTD5
Top patents by PatentIndex Score
5 records- 0178US5360060AFin-tube type heat exchangerHITACHI LTD·Filed 1992·Granted Nov 1, 1994·45 cites·8 claims
- 0273US5410887AApparatus for detecting composition of refrigerant and method thereforHITACHI LTD·Filed 1993·Granted May 2, 1995·41 cites·2 claims
- 0369US5709090ARefrigerating system and operating method thereofHITACHI LTD·Filed 1995·Granted Jan 20, 1998·33 cites·17 claims
- 0467US4411140AAbsorption type cooling and heating systemHITACHI LTD·Filed 1982·Granted Oct 25, 1983·24 cites·6 claims
- 0539US6101837AIce thermal storage type air-conditioner and ice thermal storage tankHITACHI LTD·Filed 1999·Granted Aug 15, 2000·9 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →