Inventor · disambiguated record
Kousei Yokoyama
Also filed as: YOKOYAMA KOUSEI
4 granted patents·64 citations·filing 2007–2014
76Inventor score
Top patents by PatentIndex Score
4 records- 0188US8198835B2Cordless power tool and battery device used for sameYOKOYAMA KOUSEI·Filed 2007·Granted Jun 12, 2012·46 cites·8 claims
- 0272US8684106B2Battery pack and motor-driven tool using the sameHANAWA HIROYUKI·Filed 2010·Granted Apr 1, 2014·7 cites·31 claims
- 0368US7807293B2Battery pack and motor-driven tool using the sameHITACHI KOKI KK·Filed 2007·Granted Oct 5, 2010·8 cites·6 claims
- 0462US9748534B2Electric tool and battery pack for the electric toolHITACHI KOKI KK·Filed 2014·Granted Aug 29, 2017·3 cites·17 claims
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