国家/地区 日本（2）
IPC部 C（2）
IPC大类 C01（2） D01（2）
IPC小类 C01B（2）
IPC D01F009/145（2）
发明人
公开年
申请年
专利权人 TEIJIN LTD（2）

Pitch-based ultrafine carbon fiber comprises specific nitrogen atom content measured by X-ray photoelectron spectroscopy, and has specified average fiber diameter and true density.

YAGI K, KOMURA S, HIRAKAWA R

Pitch-type carbon short fiber filler for resin composition used for molded products, has graphene sheet closed in filler end surface, and specified range of average fiber diameter as observed by optical microscope.

HARA H, HIRATA S, SANO H