Inventor · disambiguated record
Masayoshi Sonokawa
Also filed as: SONOKAWA MASAYOSHI
9 granted patents·87 citations·filing 1991–2022
86Inventor score
Top patents by PatentIndex Score
9 records- 0195US9683451B2Seal assembly for arranging between a stator and a rotorUNITED TECHNOLOGIES CORP·Filed 2013·Granted Jun 20, 2017·20 cites·17 claims
- 0293US11946548B2Coil spring carbon face sealRAYTHEON TECH CORP·Filed 2022·Granted Apr 2, 2024·2 cites·21 claims
- 0388US7984911B2Face seal for gas turbine engineUNITED TECHNOLOGIES CORP·Filed 2009·Granted Jul 26, 2011·16 cites·12 claims
- 0480US9316119B2Turbomachine secondary seal assemblySONOKAWA MASAYOSHI·Filed 2011·Granted Apr 19, 2016·10 cites·21 claims
- 0578US10167734B2Buffer airflow to bearing compartmentUNITED TECHNOLOGIES CORP·Filed 2013·Granted Jan 1, 2019·6 cites·17 claims
- 0678US5188572AInternally meshing planetary gear structureSUMITOMO HEAVY INDUSTRIES·Filed 1991·Granted Feb 23, 1993·32 cites·14 claims
- 0770US11371373B2Seal assembly for use in gas turbine enginesUNITED TECHNOLOGIES CORP·Filed 2019·Granted Jun 28, 2022·1 cites·18 claims
- 0858US11578803B2Cartridge seal assembly for rotational equipmentUNITED TECHNOLOGIES CORP·Filed 2019·Granted Feb 14, 2023·0 cites·17 claims
- 0937US10655487B2Pressure balanced secondary sealUNITED TECHNOLOGIES CORP·Filed 2018·Granted May 19, 2020·0 cites·20 claims
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