YS

Youji Shigeyoshi

JR Japan Synthetic Rubber: 1 patents #256 of 558Top 50%
📍 Yokkaichi, JP: #1,376 of 2,072 inventorsTop 70%
Overall (All Time): #3,894,889 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4897088 Dispersing agent and a solid fuel slurry composition containing the same Katuhiro Ishikawa, Katsumi Ito 1990-01-30