Inventor · disambiguated record
Ryoji Fukuyama
Also filed as: FUKUYAMA RYOJI
3 granted patents·187 citations·filing 1985–2001
77Inventor score
Files withHITACHI LTD3
Top patents by PatentIndex Score
3 records- 0195US4631106APlasma processorHITACHI LTD·Filed 1985·Granted Dec 23, 1986·99 cites·12 claims
- 0290US6506686B2Plasma processing apparatus and plasma processing methodHITACHI LTD·Filed 2001·Granted Jan 14, 2003·52 cites·10 claims
- 0369US4618398ADry etching methodHITACHI LTD·Filed 1985·Granted Oct 21, 1986·36 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →