Inventor · disambiguated record
Yoichi Ryokai
Also filed as: RYOKAI YOICHI
3 granted patents·1 pending application·40 citations·filing 1995–2019
71Inventor score
Top patents by PatentIndex Score
4 records- 0161US5793153AField emission type electron emitting device with convex insulating portionsFUJI ELECTRIC CO LTD·Filed 1995·Granted Aug 11, 1998·14 cites·18 claims
- 0253US2019300999A1Method of forming metallic filmTOKYO ELECTRON LTD·Filed 2019·Application pending·0 cites
- 0352US5972768AMethod of manufacturing semiconductor device having low contact resistanceFUJI ELECTRIC CO LTD·Filed 1997·Granted Oct 26, 1999·21 cites·4 claims
- 0442US5866438AField emission type electron emitting device and method of producing the sameFUJI ELECTRIC CO LTD·Filed 1998·Granted Feb 2, 1999·5 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →