Inventor · disambiguated record
Yukichi Koji
Also filed as: KOJI YUKICHI
6 granted patents·51 citations·filing 1992–2015
79Inventor score
Top patents by PatentIndex Score
6 records- 0191US9175404B2Etching agent for copper or copper alloyADVANCED TECH MATERIALS·Filed 2012·Granted Nov 3, 2015·15 cites·17 claims
- 0287US9045717B2Cleaning agent for semiconductor provided with metal wiringNAKANISHI MUTSUMI·Filed 2011·Granted Jun 2, 2015·28 cites·15 claims
- 0371US9476019B2Cleaning agent for semiconductor provided with metal wiringADVANCED TECH MATERIALS·Filed 2015·Granted Oct 25, 2016·2 cites·19 claims
- 0448US9790600B2Etching agent for copper or copper alloyENTEGRIS INC·Filed 2015·Granted Oct 17, 2017·0 cites·16 claims
- 0541US10570522B2Etching solution for copper or copper alloyYOSHIDA YUTAKA·Filed 2011·Granted Feb 25, 2020·0 cites·6 claims
- 0635US5396579AMembership function generatorROHM CO LTD·Filed 1992·Granted Mar 7, 1995·6 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →