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Inventor

MATSUNAGA MASAAKI

JP14 patents
⚠️ This page may combine multiple inventors who share the name “MATSUNAGA MASAAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CITIZEN WATCH CO LTD

11 patents

SEIKISUI CHEMICAL CO LTD

1 patent

KAWAI HIDETOSHI

1 patent

CITIZEN HOLDINGS CO LTD

1 patent