1985: Continuous filament yarn from carbon fibers
1987: High-tenacity high-modulus carbon fibers from mesophare pitch
1988: Manufacture of high-tenacity high-modulus pitch-based carbon fibers
1990: High-strength high-modulus carbon fibers from pitch
1999: Continuous manufacture of carbon fiber mats by continuously infusibilizing spun fiber mats on a belt and carbonizing together separated mats therefrom with good carbonization efficiency
Sources
DE 3.441.084 (1985/05/23)
JP 11.335.930 (1999/12/07)
JP 62.041.320 (1987/02/23)
JP 63.105.116 (1988/05/10)
US 4.913.889 (1990/04/03)