国家/地区 日本（8）
IPC部 C（8）
IPC大类 C01（8） H01（6） B01（2）
B82（2）
IPC小类 C01B（8）
IPC C01B031/02（5） H01L029/786（5） H01L021/336（4）
H01L029/06（4） B82Y040/00（2） H01B001/04（2）
H01L021/28（2） H01L029/16（2） H01L029/40（2）
发明人 OKAI M（8）
公开年 2010（2） 2011（2）
申请年 2010（4） 
专利权人 HITACHI LTD（6） OKAI M（3） HIROOKA M（2） HITACHI CHEM.（2）
WADA Y（2）

Catalyst used for hydrolyzing e.g. cellulose, comprises graphene sheet comprising sheet formed by connecting carbon skeletons having carbon atoms bonded to each other in hexagonal shape, and having carboxyl group/sulfonic acid group.

MAKOTO O, YOSHIAKI K, OKAI M, KURIHARA Y

Hydrolysis catalyst is obtained by aggregating cellulose fibers with graphene catalyst containing carboxyl group(s) and/or sulfonic acid group(s) and including graphene structure.

OKAI M

Graphene transistor used for integrated circuit, is bottom gate-type transistor comprising gate layer containing primary graphene film and primary alumina layer, which is arranged between substrate and channel, and gate insulating film.

OKAI M

Circuit apparatus for e.g. electronic integrated circuit device, comprises graphene film which consists of several layers, metal electrode directly joined to graphene film, and another metal electrode directly joined to graphene film.

OKAI M, HIROKA M, WADA Y

Circuit apparatus for electron and optical integrated circuit apparatus comprises electrically joined graphene film and metal electrode, and aluminum oxide layer formed directly under the graphene film.

OKAI M, HIROKA M, WADA Y, HIROOKA M

Substrate having graphene film used in electronic/photonic device comprises base substrate, patterned aluminum oxide film formed on base substrate, and graphene oxide film having graphene atomic layer.

OKAI M, HIROOKA M, WADA Y, IWAI Y, HONMA S, ASHIGAHARA T, TAKAYUKI A, YOSHIAKI I, SHUNICHI H, HIROKA M, HOMMA S

Transparent conductive film for forming transparent conductive film-on-substrate for electronic device e.g. flat panel display device or photovoltaic cell comprises graphene platelets overlapping one another to form multilayer structure.

OKAI M, HIROOKA M

Device e.g. an electronic device and an electronic or electro-optical integrated circuit comprises graphene and a metal electrode.

OKAI M, HIROOKA M