Inventor · disambiguated record

Ryoichi Hirayama

Also filed as: HIRAYAMA RYOICHI

10 granted patents·1 pending application·125 citations·filing 19832022

87Inventor score
Technology areasH04NB65HC11DA01NA61P
Files withSEIKO EPSON CORP6KAO CORP3IDEMITSU PETROCHEMICAL CO1KANEBO LTD1

Top patents by PatentIndex Score

11 records

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →