HI

Haruki Isaka

KK Kureha Kagaku Kogyo: 2 patents #222 of 607Top 40%
Overall (All Time): #2,321,395 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4897462 Process for producing rubber-based graft copolymers Haruhiko Yusa, Mitsuru Hoshino 1990-01-30
4345043 Vinyl chloride resin composition Haruhiko Yusa, Masanori Oota 1982-08-17