Hitachi Chemical Company, Ltd.

The University of Tokyo

Hitachi Metals, Ltd.

Showa Denko Materials Co., Ltd.

Shunsuke Ueda

Eisuke Haba

Suguru Noda

Dong Young Kim

Ryouhei Nakamura

Zhongming Chen

Shigeaki Funyuu

Naoki Asano

Kenichi Ishitsuka

Toshio Osawa

Tomotsugu Sugioka

Iori Fukushima

Hiroshi Takaira

Yusuke Kon

Yuki Yoshinari

Daisuke Ryuzaki

Kenya Tanaka

Noda Suguru

Kim Dong Young Young

Haba Eisuke

Osawa Toshio

An organic electronic material containing a charge transport polymer for which, in a molecular weight distribution chart measured by GPC, the area ratio accounted for by components having a molecular weight of less than 20,000 is not more than 40%, and the area ratio accounted for by components having a molecular weight of 500 or less is not more than 1%.

Organic electronics material and use thereof

A heat exchanger type reaction tube includes a first tube part that forms a first flow channel into which a feed gas flows and in which the feed gas moves down; a second tube part that forms a second flow channel which is connected to the first flow channel and in which the feed gas moves up and that has a granular catalyst carrying support medium charged therein; and a heating device that heats the first tube part and the second tube part. Then, the first flow channel and the second flow channel are adjacent to each other while being separated from each other by a partition wall, and the second flow channel is provided with a distributor which holds the catalyst carrying support medium and through which the feed gas passes.

Heat exchanger type reaction tube

The present invention relates to metal catalyst particles for carbon nanotube synthesis, comprising carbon-containing regions on their surfaces.

Carbon-containing metal catalyst particles for carbon nanotube synthesis and method of producing the same, catalyst carrier support, and method of producing carbon nanotubes

Single walled carbon nanotubes can be synthesized and production efficiency of carbon nanotubes can be enhanced by a method including a supplying step (S) in which particulate carriers are supplied into a drum, a sputtering step (S) for supporting a catalyst, in which sputtering is performed while this drumis rotated around the axis and is swung so that one end portion and the other end portion in the axial direction of the drumare relatively vertically switched, and a recovering step (S) in which the particulate carriers are recovered by inclining the drum to discharge the particulate carriers from the drum.

Method for manufacturing catalyst for carbon nanotube synthesis

A drum sputtering device that can uniformly deposit target atoms on all over particles is provided. The drum sputtering device includes a vacuum containerthat contains particles, a tubular drumthat is arranged inside the vacuum containerand at least one end faceof which is open, and a sputtering targetthat is arranged inside the drum. With a supporting arm, a drive motorfor rotation, a drive motorfor swing, a first gear member, and a second gear member, the drum can be rotated around the axis of the drumand the drumcan be swung so that one end portionand the other end portionin the axial direction of the drumare relatively vertically switched.

Drum sputtering device

The present invention relates to a method of producing carbon nanotubes, comprising a catalyst particle forming step of heating and reducing a catalyst raw material to form catalyst particles and a carbon nanotube synthesizing step of flowing a raw material gas onto the heated catalyst particles to synthesize carbon nanotubes, wherein a carbon-containing compound gas without an unsaturated bond is flowed onto the catalyst raw material and/or the catalyst particles in at least one of the catalyst particle forming step and the carbon nanotube synthesizing step.

Carbon nanotubes and production method thereof

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

A polycrystalline scintillator for detecting soft X-rays, which comprises Ce as a light-emitting element and at least Y, Gd, Al, Ga and O, and has a garnet crystal structure, and a composition represented by the general formula of (YGdCe)(AlGa)O, wherein 0&#x2266;a&#x2266;0.1, 0.15&#x2266;x&#x2266;0.3, 0.002&#x2266;z&#x2266;0.015, and 0.35&#x2266;u&#x2266;0.55, with 0.05-1 ppm by mass of Fe and 0.5-10 ppm by mass of Si by outer percentage, a ratio &#x3bc;/&#x3bc;of 3 or more, wherein &#x3bc;is an absorption coefficient of X-rays at 50 keV, and &#x3bc;is an absorption coefficient of X-rays at 100 keV, and afterglow of 800 ppm or less after 3 ms from the termination of X-ray irradiation.

Polycrystalline scintillator for detecting soft X-rays

A fluorescent material for a scintillator to be used in a radiation detector is provided. The fluorescent material is designed to have a high fluorescent intensity and a low level of afterglow a short term of 1 to 300 ms after the termination of X-ray radiation. The above fluorescent material contains Ce as an activator. In addition, the material must contain at least Gd, Al, Ga, O, Fe, and a component M. The component M is at least one of Mg, Ti, and Ni. In addition, the composition of the material must be expressed by the general formula:(GdLuCe)(AlGaSc)Owherein 0&#x2266;a&#x2266;0.15, 0&#x2266;x&#x2266;0.5, 0.0003&#x2266;z&#x2266;0.0167, 0.2&#x2266;u&#x2266;0.6, and 0&#x2266;s&#x2266;0.1, and wherein, regarding the concentrations of Fe and M, Fe: 0.05&#x2266;Fe concentration (mass ppm)&#x2266;1, and 0&#x2266;M concentration (mass ppm)&#x2266;50.

Fluorescent material, scintillator using same, and radiation detector using same

Problem: The problem is to provide a fluorescent material for a scintillator to be used in a radiation detector. In view of this, the fluorescent material must have a high fluorescent intensity and a low level of afterglow 1 to 300 ms after the termination of X-ray radiation. Solution: The above problem is solved in that the above fluorescent material contains Ce as an activator. In addition, the material contain at least Gd, Al, Ga, O, Si, and a component M. The component M is at least one of Mg, Ti, and Ni. In addition, the composition of the material must be expressed by the general formula:(GdLuCe)(AlGaSc)Owherein 0&#x2266;a&#x2266;0.15, 0&#x2266;x&#x2266;0.5, 0.0003&#x2266;z&#x2266;0.0167, 0.2&#x2266;u&#x2266;0.6, and 0&#x2266;s&#x2266;0.1, and wherein, regarding the concentrations of Si and M, 0.5&#x2266;Si concentration (mass ppm)&#x2266;10, and 0&#x2266;M concentration (mass ppm)&#x2266;50.

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Tsukuba, Japan

Shunsuke Ueda