Inventor

OOYAMA YOUSUKE

JP2 patents

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

IDEMITSU KOSAN CO

1 patent

US7420065B2Sep 2, 2008

Hetero-polycyclic compounds, and coloring matters, pigments, dyes, color-changing material compositions, and color-changing films, made by using the compounds

IDEMITSU KOSAN CO15 citations79

UNIV KOCHI

1 patent

US7408072B2Aug 5, 2008

Heteropolycyclic compound and dye

UNIV KOCHI3 citations54