Hitachi Chemical Company, Ltd.

The University of Tokyo

Eisai Company, Limited

Waseda University

Meijo Nano Carbon Co., Ltd.

Toshio Osawa

Suguru Noda

Dong Young Kim

Hisashi Sugime

Eisuke Haba

Kei Hasegawa

Kentaro Yoshimatsu

Isao Tanaka

Yukio Ohya

Yoshikazu Hasegawa

Toshio Seto

Yasushi Shikata

Yukio Yamaguchi

Shunsuke Ueda

Hiroshi Komiyama

Kazunori Kakehi

Katsuya Namiki

Zihao Zhang

Hiroaki Shirakawa

Provided are a carbon nanotube production device and production method capable of realizing high-temperature heating of a catalyst raw material in a floating catalyst chemical vapor deposition (FCCVD) method, and improving the quality and yield of carbon nanotubes synthesized. A carbon nanotube production deviceincludes a synthesis furnacefor synthesizing carbon nanotubes; a catalyst raw material supplying nozzlefor supplying a catalyst raw material used to synthesize carbon nanotubes to the synthesis furnace; and a nozzle temperature adjusting unitcapable of setting a temperature of an inner portionof the catalyst raw material supplying nozzlehigher than a temperature of a reaction fieldof the synthesis furnace. By supplying to the synthesis furnacethe catalyst raw material that has been thermally decomposed after being heated to a temperate at which a catalyst metal will not yet be condensed, and by having the thermally decomposed catalyst raw material rapidly cooled to a CVD temperature at the synthesis furnace, microscopic catalyst metal particles will be generated at a high density in the space of the reaction fieldsuch that carbon nanotubes having a small diameter can be vapor-grown at a high density.

Manufacturing apparatus and manufacturing method for carbon nanotube

A method for simultaneously producing carbon nanotubes and hydrogen according to the present invention is a method for simultaneously producing carbon nanotubes and hydrogen, in which using a carbon source containing carbon atoms and hydrogen atoms and being decomposed in a heated state, and a catalyst for producing carbon nanotubes and Hfrom the carbon source, the above carbon nanotubes are synthesized on a support in a heated state, placed in a reactor, and simultaneously, the above His synthesized from the above carbon source, the method comprising a synthesis step of flowing a source gas comprising the above carbon source over the above support, on which the above catalyst is supported, to synthesize the above carbon nanotubes on the above support and simultaneously synthesize the above Hin a gas flow.

Device for simultaneously producing carbon nanotubes and hydrogen

The present invention provides a carbon nanomaterial production apparatusthat includes a reaction tubeinto which raw material gas and carrier gas are supplied and accordingly in which carbon nanomaterial is grown, a connection tubethat is connected to the reaction tubeand through which an aerosol-like mixture of the carbon nanomaterial and the carrier gas passes, and a collection tubethat is connected to the connection tubeand collects the carbon nanomaterial from the mixture. The collection tubeincludes a discharge sectionthat is located above a junctionwith the connection tubeand discharges the carrier gas contained in the mixture to outside, and a trapping sectionthat is located below the junctionwith the connection tubeand traps the carbon nanomaterial that is separated from the mixture by gravitational sedimentation.

Apparatus for producing nanocarbon material and method for producing nanocarbon material

The method for producing carbon nanotubes employs a carbon source that contains carbon and is decomposed when heated and a catalyst on a support that serves as a catalyst for production of carbon nanotubes from the carbon source. The method includes a catalyst loading step in which the catalyst starting material is distributed over the support to load the catalyst onto the support, a synthesis step in which the carbon nanotubes are synthesized on the support, and a separating step in which a separating gas stream is distributed over the support to separate the carbon nanotubes from the support, wherein the catalyst loading step, the synthesis step and the separating step are carried out while keeping the support in a heated state and switching supply of the catalyst starting material, the carbon source and the separating gas stream.

Carbon nano-tube manfuacturing method and carbon nano-tube manufacturing apparatus

Method for simultaneously producing carbon nanotubes and hydrogen, and device for simultaneously producing carbon nanotubes and hydrogen

Method for forming an ultra microparticle-structure

A recombinant natural killer cell activating factor is disclosed, preferably having a peptide of the following amino acid sequence in its molecule. The invention provides a cDNA coding for a recombinant natural killer cell activating factor, a expression plasmid involving the cDNA, a host transformed with the plasmid, an antitumor agent containing the recombinant natural killer cell activating factor and a pharmaceutical composition which comprises a pharmacologically effective amount of the antitumor agent and a pharmacologically acceptable carrier.

Recombinant natural killer cell activator

Growing community of inventors

Tokyo, Japan

Toshio Osawa