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US 2007/0184348 A1Published application
Carbon fiber
AssigneeTeijin Limited
InventorsHiroshi Sakurai, Tetsuo Ban, Masumi Hirata, Toru Sawaki
Life of this patent
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Abstract
A carbon fiber having a total content of Li, Na, Ti, Mn, Fe, Ni and Co metal elements of no more than 50 ppm and a fiber diameter of 0.001 to 2 μm and not branched and a assembly of a plurality of the carbon fibers.
Claims20
A single carbon fiber which has (1) a metal element content of no more than 50 ppm and (2) a fiber diameter of 0.001 to 2 μm and (3) is not branched.
Dependencies are inferred from the claim text.