P
PatentIndex
Search
Landscape
Sign in
Inventor
NANBA YOICHI
JP
2 patents
⚠️ This page may combine multiple inventors who share the name “NANBA YOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHOWA DENKO KK
1 patent
US6780388B2
Aug 24, 2004
Electrically conducting fine carbon composite powder, catalyst for polymer electrolyte fuel battery and fuel battery
SHOWA DENKO KK
34 citations
86
OKI ELECTRIC IND CO LTD
1 patent
US4649414A
Mar 10, 1987
PNPN semiconductor switches
OKI ELECTRIC IND CO LTD
13 citations
70