Inventor
IWATANI TUTOMU
JP13 patents
⚠️ This page may combine multiple inventors who share the name “IWATANI TUTOMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUI TOATSU CHEMICALS
11 patentsUS5476709ADec 19, 1995
Polymeric insulating material and formed article making use of the material
MITSUI TOATSU CHEMICALS51 citations96
US5573840ANov 12, 1996
Polymeric insulating material and formed article making use of the material
MITSUI TOATSU CHEMICALS19 citations92
US5212247AMay 18, 1993
Polypropylene resin compositions of high syndiotacticity and preparation process thereof
MITSUI TOATSU CHEMICALS19 citations81
US5428127AJun 27, 1995
Preparation process of syndiotactic polyproplene
MITSUI TOATSU CHEMICALS9 citations73
US5314956AMay 24, 1994
Polypropylene resin compositions of high syndiotacticity and preparation process thereof
MITSUI TOATSU CHEMICALS11 citations73
US5175208ADec 29, 1992
Method for preparing block copolymers of propylene
MITSUI TOATSU CHEMICALS8 citations73
US5169924ADec 8, 1992
Copolymer of propylene and butene-1
MITSUI TOATSU CHEMICALS8 citations73
US5266641ANov 30, 1993
Butene-1 copolymers and resin compositions containing the same
MITSUI TOATSU CHEMICALS14 citations72
US5219968AJun 15, 1993
Propylene copolymer
MITSUI TOATSU CHEMICALS13 citations71
US5206324AApr 27, 1993
Butene-1 copolymer and resin composition containing the same
MITSUI TOATSU CHEMICALS2 citations61
US5157092AOct 20, 1992
Polymer of 4-methylpentene-1
MITSUI TOATSU CHEMICALS5 citations60