Inventor · disambiguated record

Hirofumi Umetani

Also filed as: UMETANI HIROFUMI

2 granted patents·2 citations·filing 2001–2009

35Inventor score

Technology areasH01M Y02E

Files withGS YUASA CORP1 NAKAYAMA YASUHIDE1

Top patents by PatentIndex Score

2 records

0146US8980467B2Storage batteryNAKAYAMA YASUHIDE·Filed 2009·Granted Mar 17, 2015·0 cites·12 claims
0244US7022433B2Negative active material, method of manufacturing its material, and lead acid batteryGS YUASA CORP·Filed 2001·Granted Apr 4, 2006·2 cites·11 claims

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