Inventor

SOTOYAMA TOSHIKI

JP3 patents

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

MITSUI PETROCHEMICAL IND

2 patents

US4390683AJun 28, 1983

Stretched film structure of the poly-1,3-phenylene terephthalate type

MITSUI PETROCHEMICAL IND37 citations91

US4731433AMar 15, 1988

Aromatic copolyester derived from aromatic dicarboxylic acid component and aromatic diol component

MITSUI PETROCHEMICAL IND13 citations72

MITSUI CHEMICALS

1 patent

US6121393ASep 19, 2000

Process for polymerizing alpha-olefins

MITSUI CHEMICALS31 citations89