Inventor
KOHYAMA MASAKI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “KOHYAMA MASAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUI PETROCHEMICAL IND
11 patentsUS4668753AMay 26, 1987
Film-forming propylene copolymer, film thereof and process for production of the film
MITSUI PETROCHEMICAL IND104 citations95
US4642269AFeb 10, 1987
Crystalline random propylene copolymer composition and composite laminate comprising said composition
MITSUI PETROCHEMICAL IND38 citations92
US5262228ANov 16, 1993
Ethylene/pentene-1 copolymer compositions and their use
MITSUI PETROCHEMICAL IND20 citations82
US5336747AAug 9, 1994
Random 1-butene/ethylene copolymer
MITSUI PETROCHEMICAL IND9 citations73
US5324805AJun 28, 1994
Ethylene/pentene-1 copolymer and ethylene/pentene-1 copolymer composition
MITSUI PETROCHEMICAL IND15 citations73
US4801672AJan 31, 1989
Random 1-butene copolymer
MITSUI PETROCHEMICAL IND12 citations73
US4778870AOct 18, 1988
Random 1-butene/ethylene copolymer
MITSUI PETROCHEMICAL IND8 citations73
US5385998AJan 31, 1995
Random 1-butene/ethylene copolymer
MITSUI PETROCHEMICAL IND3 citations62
US5290896AMar 1, 1994
Ethylene/pentene-1 copolymer, and ethylene/pentene-1 copolymer composition
MITSUI PETROCHEMICAL IND4 citations62
US5260382ANov 9, 1993
Ethylene/pentene-1 copolymer compositions
MITSUI PETROCHEMICAL IND5 citations62
US5842505ADec 1, 1998
Multi-layer pipe
MITSUI PETROCHEMICAL IND2 citations56
SHELL OIL CO
5 patentsUS4734328AMar 29, 1988
Crystalline random propylene copolymer composition and composite laminate comprising said composition
SHELL OIL CO30 citations92
US4727113AFeb 23, 1988
Crystalline 1-butene polymer composition
SHELL OIL CO20 citations81
US4726999AFeb 23, 1988
Laminated structure comprising a substrate layer composed of a crystalline propylene resin and a heat-sealable layer composed of a crystalline propylene random copolymer composition
SHELL OIL CO24 citations81
US4725505AFeb 16, 1988
Polybutylene blend for form and fill film packaging
SHELL OIL CO15 citations74
US4727112AFeb 23, 1988
Crystalline 1-butene polymer composition
SHELL OIL CO13 citations73