国家/地区 日本（7）
IPC部 C（7）
IPC大类 D01（7） C08（6） H05（5）
H01（3） C01（2）
IPC小类 D01F（7） C08K（6） C08L（6）
H05K（5） H01L（3） C01B（2）
IPC D01F009/145（7）
发明人 HARA H（6） SANO H（3） TAKAGI S（3）
公开年 2009（6）
申请年 2007（5） 
专利权人 TEIJIN LTD（7）

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-based-carbon-fiber filler for composition for forming molded product, has graphene sheet closed in filler end surface observed by transmission electron microscope, and preset surface pH, true density and average fiber diameter.

HARA H, SANO H

Pitch-type carbon short fiber filler used in composition used for producing molded products such as heat radiation material for electronic components, has graphene sheet closed in filler end surface and has flat surface.

BAN T, HARA H, TAKAGI S

Pitch-type carbon short fiber for molding e.g. used for heat exchanger comprises graphene sheet which has closed in filler end surface observation by transmission electron microscope.

HARA H, SANO H

Pitch-type carbon short-fiber filler for composition, exhibits flat surface as observed through scanning electron microscope, and graphene sheet as observed through transmission electro microscope closed in filler end surface.

HARA H, OGAMI S, TAKAGI S

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

Pitch-type carbon short fiber filler for resin composition used for molded products used for electromagnetic wave shielding material, has average fiber diameter in specified range, graphene sheet closed structure and flat surface.

HARA H, SAKURAI H, TAKAGI S