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Inventor

YAMASHITA TADAKAZU

JP7 patents
⚠️ This page may combine multiple inventors who share the name “YAMASHITA TADAKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON OIL CO LTD

3 patents

KAO CORP

2 patents

JAPAN NATIONAL RAILWAY

2 patents