Inventor · disambiguated record

Masakazu Ooka

Also filed as: OOKA MASAKAZU

1 granted patent·0 citations·filing 2009–2009

1Inventor score

Technology areasB21K

Files withIBARAKI STEEL CT CO LTD1

Top patents by PatentIndex Score

1 record

0137US7823432B2Method of forming spring washer blind-holes into a piston for an automobile transmissionIBARAKI STEEL CT CO LTD·Filed 2009·Granted Nov 2, 2010·0 cites·9 claims

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