Inventor · disambiguated record
Hiroshi Sumida
Also filed as: SUMIDA HIROSHI
4 granted patents·1 pending application·44 citations·filing 1995–2025
73Inventor score
Top patents by PatentIndex Score
5 records- 0165US2025299782A1Crosslinking reaction simulation device and internal bubble estimation deviceSUMITOMO RIKO CO LTD·Filed 2025·Application pending·0 cites
- 0264US6821678B2Process of producing manganese dioxide for a lithium primary batteryMITSUI MINING & SMELTING CO·Filed 2001·Granted Nov 23, 2004·8 cites·2 claims
- 0364US5523073AManganese dioxide for lithium primary battery and method of producing the sameMITSUI MINING & SMELTING CO·Filed 1995·Granted Jun 4, 1996·28 cites·5 claims
- 0435US5866278AElectrolytic manganese dioxide, process for preparing the same, and manganese dry cellMITSUI MINING & SMELTING CO·Filed 1996·Granted Feb 2, 1999·8 cites·4 claims
- 0523US5972074AMethod for reducing impurities in misch metal and alloysMITSUI MINING & SMELTING CO·Filed 1997·Granted Oct 26, 1999·0 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Hiroshi Sumida files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →