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Inventor
KUMAGAWA YUTAKA
JP
2 patents
⚠️ This page may combine multiple inventors who share the name “KUMAGAWA YUTAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON RUBBER CO
1 patent
US4894932A
Jan 23, 1990
Air-permeable shoe
NIPPON RUBBER CO
117 citations
92
DISCOVERY KK
1 patent
US6079900A
Jun 27, 2000
Pavement composite material with elastic surface layer and production method thereof
DISCOVERY KK
12 citations
60