Inventor · disambiguated record
Kouji Otani
Also filed as: KIKKAWA SEIICHI · NOGITA SHUNSUKE · OTANI KOUJI
5 granted patents·90 citations·filing 1973–2022
80Inventor score
Top patents by PatentIndex Score
5 records- 0188US4028237AMethod and apparatus for treatment of fluorine-containing waste watersHITACHI LTD·Filed 1976·Granted Jun 7, 1977·35 cites·3 claims
- 0272US4220858AApparatus for detecting change in water qualityHITACHI LTD·Filed 1978·Granted Sep 2, 1980·24 cites·11 claims
- 0372US4085194AWaste flue gas desulfurizing methodHITACHI LTD·Filed 1973·Granted Apr 18, 1978·26 cites·20 claims
- 0465US12444245B2Mine management systemHITACHI CONSTRUCTION MACH CO·Filed 2022·Granted Oct 14, 2025·0 cites·10 claims
- 0535US4154673AMethod of treatment of waste water containing sulfur compoundsBABCOCK HITACHI KK·Filed 1977·Granted May 15, 1979·5 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →