Inventor · disambiguated record
Kazuhiko Otawa
Also filed as: OTAWA KAZUHIKO
4 granted patents·3 pending applications·127 citations·filing 1999–2007
77Inventor score
Top patents by PatentIndex Score
7 records- 0185US6089965APolishing padNIPPON PILLAR PACKING·Filed 1999·Granted Jul 18, 2000·89 cites·4 claims
- 0283US6864008B2Separator for a fuel cell and manufacturing method of the separatorNIPPON PILLLAR PACKING CO LTD·Filed 2001·Granted Mar 8, 2005·32 cites·17 claims
- 0358US7029783B1Fuel cell separator and production method thereforNIPPON PILLAR PACKING·Filed 2000·Granted Apr 18, 2006·4 cites·4 claims
- 0452US7033692B1Fuel cell separatorNIPPON PILLAR PACKING·Filed 2000·Granted Apr 25, 2006·2 cites·5 claims
- 0544US2010159357A1Separator for Fuel Cell and Process for Producing the SameNIPPON PILLAR PACKING·Filed 2007·Application pending·0 cites
- 0644US2006172175A1Fuel cell separatorNIPPON PILLAR PACKING·Filed 2006·Application pending·0 cites
- 0743US2009130534A1Separator for fuel cell and process for producing the sameNIPPON PILLAR PACKING·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →