Inventor

YOKOTA AKIYOSHI

3 patents

Patents

3 patents

US4294976AOct 13, 1981

Process for producing biphenyl compounds

UBE INDUSTRIES28 citations78

US4292435ASep 29, 1981

Method of producing biphenyltetracarboxylic esters

UBE INDUSTRIES8 citations71

US4338456AJul 6, 1982

Method of producing biphenyltetracarboxylic esters

UBE INDUSTRIES6 citations60