P

Inventor

OTAWA KAZUHIKO

JP4 patents
⚠️ This page may combine multiple inventors who share the name “OTAWA KAZUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON PILLAR PACKING

3 patents
US6089965AJul 18, 2000

Polishing pad

NIPPON PILLAR PACKING89 citations95
US7033692B1Apr 25, 2006

Fuel cell separator

NIPPON PILLAR PACKING2 citations60
US7029783B1Apr 18, 2006

Fuel cell separator and production method therefor

NIPPON PILLAR PACKING4 citations60

NIPPON PILLLAR PACKING CO LTD

1 patent
US6864008B2Mar 8, 2005

Separator for a fuel cell and manufacturing method of the separator

NIPPON PILLLAR PACKING CO LTD32 citations87