Inventor · disambiguated record
Kei Ooyama
Also filed as: OOYAMA KEI
3 granted patents·42 citations·filing 2004–2016
69Inventor score
Technology areasA61G
Top patents by PatentIndex Score
3 records- 0180US9693914B2WheelchairFRANCE BED CO·Filed 2016·Granted Jul 4, 2017·7 cites·10 claims
- 0270US7017210B2Rising-type bed apparatus and mattressFRANCE BED CO·Filed 2004·Granted Mar 28, 2006·31 cites·12 claims
- 0353US9027948B2Brake-equipped wheelchairOOYAMA KEI·Filed 2012·Granted May 12, 2015·4 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →