Inventor

ARITA SEIJI

2 patents

Patents

2 patents

US3932494AJan 13, 1976

Thiohumic acid, a process for preparing same, and its use for absorbing heavy metal ions

AGENCY IND SCIENCE TECHN35 citations88

US4606808AAug 19, 1986

Method for the preparation of pitches for spinning carbon fibers

AGENCY IND SCIENCE TECHN12 citations72