Inventor · disambiguated record
Masaki Hirooka
Also filed as: HIROOKA MASAKI
5 granted patents·83 citations·filing 1986–2000
80Inventor score
Top patents by PatentIndex Score
5 records- 0187US6607859B1Alkaline battery separator and process for producing the sameJAPAN VILENE CO LTD·Filed 2000·Granted Aug 19, 2003·32 cites·11 claims
- 0278US5290645ABattery separator and a batteryJAPAN VILENE CO LTD·Filed 1993·Granted Mar 1, 1994·31 cites·11 claims
- 0376US6348286B1Alkaline battery separator and process for producing the sameJAPAN VILENE CO LTD·Filed 2000·Granted Feb 19, 2002·15 cites·28 claims
- 0444USRE41203EAlkaline battery separator and process for producing the sameJAPAN VILENE CO LTD·Filed 2000·Granted Apr 6, 2010·0 cites·11 claims
- 0529US4699858ASeparator for an alkaline batteryFREUDENBERG CARL FA·Filed 1986·Granted Oct 13, 1987·5 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →