Inventor · disambiguated record
Hirohiko Hirao
Also filed as: HIRAO HIROHIKO
15 granted patents·111 citations·filing 1994–2021
89Inventor score
Top patents by PatentIndex Score
15 records- 0177US5498301AAgent for treating surfaces of copper and copper alloysSHIKOKU CHEM·Filed 1994·Granted Mar 12, 1996·38 cites·9 claims
- 0274US11014946B2Tetrazole silane compound, method for synthesizing said compound and use thereofSHIKOKU CHEM·Filed 2018·Granted May 25, 2021·1 cites·32 claims
- 0373US5795409ASurface treating agent for copper or copper alloySHIKOKU CHEM·Filed 1997·Granted Aug 18, 1998·37 cites·4 claims
- 0472US7754105B2Water-soluble preflux and usage of the sameSHIKOKU CHEM·Filed 2006·Granted Jul 13, 2010·3 cites·4 claims
- 0570US5560785AMethod for forming a protective chemical layer on copper and copper alloy surfacesSHIKOKU CHEM·Filed 1995·Granted Oct 1, 1996·31 cites·8 claims
- 0669US12091430B2Metal surface treatment liquid and liquid concentrate thereof, metal surface treatment liquid set, metal surface treatment method, and method for manufacturing printed wiring boardSHIKOKU CHEM·Filed 2020·Granted Sep 17, 2024·0 cites·19 claims
- 0766US11472823B2Tetrazole silane compound, method for synthesizing said compound and use thereofSHIKOKU CHEM·Filed 2021·Granted Oct 18, 2022·0 cites·2 claims
- 0857US8183386B2Phenylnaphthylimidazole compound and usage of the sameHIRAO HIROHIKO·Filed 2005·Granted May 22, 2012·1 cites·15 claims
- 0955US10398028B2Surface treating composition for copper and copper alloy and utilization thereofSHIKOKU CHEM·Filed 2016·Granted Aug 27, 2019·0 cites·6 claims
- 1055US8378116B2Phenylnaphthylimidazole compound and usage of the sameSHIKOKU CHEM·Filed 2012·Granted Feb 19, 2013·0 cites·3 claims
- 1153US10405422B2Copper film-forming agent and method for forming copper filmSHIKOKU CHEM·Filed 2013·Granted Sep 3, 2019·0 cites·8 claims
- 1252US9532493B2Surface treating composition for copper and copper alloy and utilization thereofHIRAO HIROHIKO·Filed 2012·Granted Dec 27, 2016·0 cites·18 claims
- 1344US11680076B2Triazole silane compound, method for synthesizing said compound and use thereofSHIKOKU CHEM·Filed 2018·Granted Jun 20, 2023·0 cites·22 claims
- 1441US9649713B2Surface treating composition for copper and copper alloy and utilization thereofHIRAO HIROHIKO·Filed 2012·Granted May 16, 2017·0 cites·10 claims
- 1539US7661577B2Imidazole compound and use thereofSHIKOKU CHEM·Filed 2004·Granted Feb 16, 2010·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →