Inventor
YAMADA TOYOKAZU
JP11 patents
⚠️ This page may combine multiple inventors who share the name “YAMADA TOYOKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IDEMITSU PETROCHEMICAL CO
9 patentsUS5061532AOct 29, 1991
Multilayer structure and easily openable container and lid
IDEMITSU PETROCHEMICAL CO55 citations95
US4842951AJun 27, 1989
Thermoforming resin laminate sheet
IDEMITSU PETROCHEMICAL CO57 citations95
US5281453AJan 25, 1994
Multilayer composites and easily openable containers
IDEMITSU PETROCHEMICAL CO44 citations92
US5194109AMar 16, 1993
Method for recovering scraps of multi-layer plastic sheet or film
IDEMITSU PETROCHEMICAL CO22 citations92
US4970113ANov 13, 1990
Multilayer structure and easily openable container and lid
IDEMITSU PETROCHEMICAL CO47 citations92
US4917851AApr 17, 1990
Method of manufacturing multi-layer resin material
IDEMITSU PETROCHEMICAL CO39 citations92
US4960648AOct 2, 1990
Laminated materials and laminated articles
IDEMITSU PETROCHEMICAL CO13 citations73
US5167900ADec 1, 1992
Method of producing an easily openable multilayer plastic container
IDEMITSU PETROCHEMICAL CO5 citations62
US5165974ANov 24, 1992
Multilayer plastics containers and methods of producing the same
IDEMITSU PETROCHEMICAL CO4 citations62