Inventor
DOI YOSHINAO
7 patents
Patents
7 patentsUS4335193AJun 15, 1982
Microporous film, particularly battery separator, and method of making
ASAHI CHEMICAL IND86 citations93
US5022990AJun 11, 1991
Polyvinylidene fluoride porous membrane and a method for producing the same
ASAHI CHEMICAL IND93 citations92
US4409339AOct 11, 1983
Hydrophilic sulfonated polyolefin porous membrane and process for preparing the same
ASAHI CHEMICAL IND43 citations92
US4229297AOct 21, 1980
Method of separating oil from oil-containing liquid
ASAHI CHEMICAL IND45 citations91
US4190707AFeb 26, 1980
Alkaline battery separator
ASAHI CHEMICAL IND46 citations91
US4331622AMay 25, 1982
Method for manufacturing a microporous film having low electrical resistance and high durability
ASAHI CHEMICAL IND34 citations90
US4210709AJul 1, 1980
Microporous film battery separator
ASAHI CHEMICAL IND36 citations87