Inventor · disambiguated record
Ryoko Sakiyama
Also filed as: SAKIYAMA RYOKO
3 granted patents·48 citations·filing 1999–2000
73Inventor score
Technology areasF25B
Files withHITACHI LTD3
Top patents by PatentIndex Score
3 records- 0169US6247331B1Absorption refrigerator and the method of producing the sameHITACHI LTD·Filed 2000·Granted Jun 19, 2001·17 cites·20 claims
- 0268US6233968B1Absorption refrigerating machineHITACHI LTD·Filed 2000·Granted May 22, 2001·15 cites·4 claims
- 0354US6122930AAbsorption refrigerating machineHITACHI LTD·Filed 1999·Granted Sep 26, 2000·16 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →