Inventor
TSUJI SYOICHI
JP6 patents
Patents
6 patentsUS4921653AMay 1, 1990
Method of forming a porous polyolefin film
MITSUI TOATSU CHEMICALS67 citations94
US4814124AMar 21, 1989
Preparation of gas permeable porous film
MITSUI TOATSU CHEMICALS105 citations94
US4921652AMay 1, 1990
Process for producing a porous film
MITSUI TOATSU CHEMICALS40 citations90
US5206339AApr 27, 1993
Extrusion process of polyimide and polyimide pellet used for the process
MITSUI TOATSU CHEMICALS8 citations72
US4699733AOct 13, 1987
Resin compostion for porous film and film prepared therefrom
MITSUI TOATSU CHEMICALS7 citations71
US5069848ADec 3, 1991
Extrusion process of polyimide and polyimide pellet used for the process
MITSUI TOATSU CHEMICALS3 citations61