Inventor

MANAKA SUMIO

JP2 patents

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

NIPPON SODA CO

1 patent

US5017710AMay 21, 1991

Fluoran compound and coloring recording material using it

NIPPON SODA CO3 citations60

SHIN NISSO KAKO CO LTD

1 patent

US4668967AMay 26, 1987

Fluoran compound and color forming record materials using the same

SHIN NISSO KAKO CO LTD3 citations59