Inventor · disambiguated record
Takafumi Katsura
Also filed as: KATSURA TAKAFUMI
9 granted patents·92 citations·filing 2012–2018
86Inventor score
Top patents by PatentIndex Score
9 records- 0193US9381974B2Electric derailleur motor unit and motorized derailleurSHIMANO KK·Filed 2013·Granted Jul 5, 2016·24 cites·33 claims
- 0291US8979683B2Bicycle electric actuator unitKATSURA TAKAFUMI·Filed 2012·Granted Mar 17, 2015·40 cites·12 claims
- 0389US9809276B2Electric bicycle derailleur control systemSHIMANO KK·Filed 2016·Granted Nov 7, 2017·12 cites·16 claims
- 0487US9821884B2Bicycle operating deviceSHIMANO KK·Filed 2015·Granted Nov 21, 2017·8 cites·30 claims
- 0575US8906528B2Bicycle electric power source assemblySHIMANO KK·Filed 2013·Granted Dec 9, 2014·5 cites·14 claims
- 0657US10279867B2Bicycle operating deviceSHIMANO KK·Filed 2015·Granted May 7, 2019·1 cites·52 claims
- 0757US10220915B2Bicycle bar end attachmentSHIMANO KK·Filed 2017·Granted Mar 5, 2019·1 cites·17 claims
- 0850US9493210B2Electric power storage holderFUJII KAZUHIRO·Filed 2012·Granted Nov 15, 2016·1 cites·20 claims
- 0948US11008067B2Bicycle operating deviceSHIMANO KK·Filed 2018·Granted May 18, 2021·0 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →