Inventor · disambiguated record
Ei Tsukahara
Also filed as: TSUKAHARA EI
5 granted patents·8 citations·filing 2012–2014
69Inventor score
Top patents by PatentIndex Score
5 records- 0169US9945296B2Six-stroke engine and method of operating six-stroke engineYAMAHA MOTOR CO LTD·Filed 2014·Granted Apr 17, 2018·3 cites·10 claims
- 0269US9284892B2Six-stroke cycle engine having scavenging strokeYAMAHA MOTOR CO LTD·Filed 2013·Granted Mar 15, 2016·3 cites·5 claims
- 0361US10054061B2Four-cylinder engine and method of operating four-cylinder engineYAMAHA HASUDOKI KK·Filed 2014·Granted Aug 21, 2018·2 cites·12 claims
- 0444US9284883B2Six-stroke cycle engine having scavenging strokeYAMAHA MOTOR CO LTD·Filed 2013·Granted Mar 15, 2016·0 cites·6 claims
- 0532US9010288B2Six-stroke engineTSUKAHARA EI·Filed 2012·Granted Apr 21, 2015·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →