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Inventor

YAMAKAWA NORIKO

JP15 patents
⚠️ This page may combine multiple inventors who share the name “YAMAKAWA NORIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SHOWA SHELL SEKIYU

13 patents

NIPPON DENSO CO

1 patent

SHOWA SHELL SEKIYO KABUSHIKI K

1 patent