Inventor · disambiguated record
Seiji Nakahigashi
Also filed as: NAKAHIGASHI SEIJI
11 granted patents·3 pending applications·22 citations·filing 2017–2025
85Inventor score
Top patents by PatentIndex Score
14 records- 0195US11633724B2Methods for exhaust gas purificationCATALER CORP·Filed 2022·Granted Apr 25, 2023·3 cites·8 claims
- 0294US11053833B2Exhaust gas purification catalystCHINZEI ISAO·Filed 2020·Granted Jul 6, 2021·3 cites·8 claims
- 0393US11426710B2Exhaust gas control catalystTOYOTA MOTOR CO LTD·Filed 2020·Granted Aug 30, 2022·3 cites·3 claims
- 0491US10058846B2Catalyst for purifying exhaust gasSAITO YOSHINORI·Filed 2017·Granted Aug 28, 2018·6 cites·6 claims
- 0587US11759769B2Exhaust gas purification deviceCHINZEI ISAO·Filed 2021·Granted Sep 19, 2023·1 cites·1 claims
- 0685US11577226B2Exhaust gas purification catalystNAKAHIGASHI SEIJI·Filed 2020·Granted Feb 14, 2023·2 cites·3 claims
- 0783US11559768B2Exhaust gas purification catalystCHINZEI ISAO·Filed 2020·Granted Jan 24, 2023·1 cites·4 claims
- 0882US11400436B2Exhaust gas purification catalystCHINZEI ISAO·Filed 2020·Granted Aug 2, 2022·2 cites·1 claims
- 0973US11524285B2Exhaust gas purification catalyst deviceCATALER CORP·Filed 2019·Granted Dec 13, 2022·1 cites·9 claims
- 1057US12140060B2Exhaust gas purification systemSUGIURA KOJI·Filed 2023·Granted Nov 12, 2024·0 cites·3 claims
- 1156US2020376467A1Exhaust gas purification catalyst deviceCATALER CORP·Filed 2019·Application pending·0 cites
- 1254US2025387783A1Exhaust gas purification deviceNAKAHIGASHI SEIJI·Filed 2025·Application pending·0 cites
- 1351US11719144B2Exhaust gas purification catalystSHIMANO NORIMICHI·Filed 2020·Granted Aug 8, 2023·0 cites·4 claims
- 1444US2025073640A1Exhaust gas purification deviceNAKAHIGASHI SEIJI·Filed 2024·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →