Inventor · disambiguated record
Ryouichi Tokioka
Also filed as: TOKIOKA RYOUICHI
4 granted patents·30 citations·filing 2004–2007
73Inventor score
Top patents by PatentIndex Score
4 records- 0173US7753800B2Expandable shaftJTEKT CORP·Filed 2005·Granted Jul 13, 2010·12 cites·5 claims
- 0271US7172361B2Extendable shaftKOYO SEIKO CO·Filed 2004·Granted Feb 6, 2007·13 cites·15 claims
- 0367US7695372B2Yoke for universal joint and universal jointJTEKT CORP·Filed 2007·Granted Apr 13, 2010·4 cites·6 claims
- 0443US7174825B2Hydraulic power steering apparatusKOYO SEIKO CO·Filed 2005·Granted Feb 13, 2007·1 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →