Inventor
TAKUBO TOYOKAZU
JP7 patents
Patents
7 patentsUS5415904AMay 16, 1995
Snap fastener and packaging bag with the same
IDEMITSU PETROCHEMICAL CO124 citations92
US4863653ASep 5, 1989
Process of producing thermoplastic resin sheet and equipment therefor
IDEMITSU PETROCHEMICAL CO28 citations92
US4666649AMay 19, 1987
Method of and apparatus for extruding thermoplastic resin
IDEMITSU PETROCHEMICAL CO33 citations92
US5645905AJul 8, 1997
Snap zipper
IDEMITSU PETROCHEMICAL CO23 citations91
US5603995AFeb 18, 1997
Snap zipper and bag with the same
IDEMITSU PETROCHEMICAL CO35 citations91
US4867927ASep 19, 1989
Process of producing thermplastic resin sheet and the like and molding screw therefor
IDEMITSU PETROCHEMICAL CO24 citations91
US4729666AMar 8, 1988
Screw for molding thermoplastic resin having a stress relaxation section
IDEMITSU PETROCHEMICAL CO16 citations72