Inventor · disambiguated record

Ryoichi Koumaru

Also filed as: KOUMARU RYOICHI

1 granted patent·0 citations·filing 2013–2013

4Inventor score

Technology areasC04B

Files withHITACHI SHIPBUILDING ENG CO1

Top patents by PatentIndex Score

1 record

0138US10138787B2Treatment device equipped with catalyst-supporting honeycomb structure, and method for producing sameHITACHI SHIPBUILDING ENG CO·Filed 2013·Granted Nov 27, 2018·0 cites·9 claims

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

Ryoichi Koumaru — Patent Inventor | PatentIndex