Nec Corporation

Nec Electronics Corporation

Hideaki Numata

Norikazu Ohshima

Nobuyuki Ishiwata

Tadahiko Sugibayashi

Fumiyuki Nihey

Kazuki Ihara

Koichi Takeda

Noboru Sakimura

Takeshi Honda

Tetsuhiro Suzuki

Hiroyuki Endoh

Sadahiko Miura

Shunsuke Fukami

Satoru Toguchi

Ryota Yuge

Takeshi Okazawa

Takeshi Saito

Kiyotaka Tsuji

Hisao Matsutera

Mayumi Kosaka

Yuki Kuwahara

Fusako Sasaki

Kouichi Takeda

A method for separating a single-walled carbon nanotube mixture includes: preparing a dispersion liquid containing the single-walled carbon nanotube mixture and a surfactant; and separating the single-walled carbon nanotube mixture contained in the dispersion liquid, wherein in the separating the single-walled carbon nanotube mixture, a dispersion liquid in which a physical property of the dispersion liquid is within a prescribed range is used.

Method for separating single-walled carbon nanotube mixture and single-walled carbon nanotube dispersion liquid

A nanocarbon separation method includes: preparing a nanocarbon dispersion liquid in which nanocarbons and a non-ionic surfactant are dispersed in a solvent; injecting the nanocarbon dispersion liquid into a separation tank; applying a direct current voltage to a first electrode provided at an upper part of the interior of the separation tank and a second electrode provided at a lower part of the interior of the separation tank and generating a pH gradient in the nanocarbon dispersion liquid inside the separation tank, and separating metallic nanocarbons and semiconductor nanocarbons included in the nanocarbon dispersion liquid.

Nanocarbon separation method and nanocarbon separation apparatus

A cross-flow filtration device includes: a filter module which includes an inner chamber and an outer chamber separated by a semipermeable membrane; a process liquid tank which is configured to accommodate a process liquid; a pump which is configured to cause the process liquid to circulate to the inner chamber in the filter module and the process liquid tank; a replenisher tank which is configured to accommodate a replenisher liquid to be replenished into the process liquid tank, at least one or more sensors which are configured to measure a pressure of the circulating process liquid; and a replenisher measurement unit which is configured to measure an amount of the replenisher liquid supplied from the replenisher tank to the process liquid tank. The process liquid tank is configured to be continuously replenished with the replenisher liquid.

Cross-flow filtration device and cross-flow filtration method

A nanocarbon ink contains nanocarbons, a solvent, and a polyoxyethylene alkyl ether represented by the following expression: CH(OCHCH)OH where, n=12 to 18 and m=20 to 100.

Nanocarbon ink and method for manufacturing semiconductor device in which same is used

A nanocarbon separation method includes: a step of preparing a plurality of liquids with different specific gravities in which at least one of the plurality of liquids is a dispersion liquid in which a mixture of nanocarbons with different properties is dispersed; a step of sequentially injecting the plurality of liquids into an electrophoresis tank so that the specific gravities of the liquids decrease from a bottom to a top of the liquids in a direction of gravitational force; and a step of separating the mixture of the nanocarbons by moving a part of the mixture toward an electrode side disposed in an upper part of the electrophoresis tank and moving a remainder of the mixture toward an electrode side disposed in a lower part of the electrophoresis tank by applying a direct current voltage to the electrodes.

Nanocarbon separation method

A control apparatus controls an array-type sensor. The control apparatus includes: a first selector/driver that is configured to select and drive one of a plurality of first lines; a second selector/driver that is configured to select and drive at least one of a plurality of second lines; a read/arithmetic circuit that is configured to read outputs of respective unit cells and perform a correction operation on the outputs; and a nonvolatile storage device that is configured to store reference data. The sensor outputs of the respective unit cells with respect to two or more reference inputs are stored as reference data in the nonvolatile storage device in a calibration mode, and a correction operation is performed on the sensor outputs of the respective unit cells using the stored reference data and results of the correction operation are output in a measurement mode.

Control apparatus, array-type sensor, sensor usage method, control method, and program

A nanocarbon separation device includes a separation tank which is configured to accommodate a dispersion liquid including a nanocarbon, a first electrode that is provided at an upper part in the separation tank, a second electrode that is provided at a lower part in the separation tank, and a partition member that is provided between the first electrode and the second electrode in the separation tank, and the partition member partitions the separation tank into a plurality of regions.

Nanocarbon separation device, nanocarbon separation method, and nanocarbon recovery method

A magnetic random access memory according to the present invention is provided with: a magnetic recording layer including a magnetization free region having a reversible magnetization, wherein a write current is flown through the magnetic recording layer in an in-plane direction; a magnetization fixed layer having a fixed magnetization; a non-magnetic layer provided between the magnetization free region and the magnetization fixed layer; and a heat sink structure provided to be opposed to the magnetic recording layer and having a function of receiving and radiating heat generated in the magnetic recording layer. The magnetic random access memory thus-structured radiates heat generated in the magnetic recording layer by using the heat sink structure, suppressing the temperature increase caused by the write current flown in the in-plane direction.

Magnetic random access memory

A magnetic memory cellis provided with a magnetic recording layerwhich is a ferromagnetic layer and a pinned layerconnected with the magnetic recording layerthrough a non-magnetic layer. The magnetic recording layerhas a magnetization inversion region, a first magnetization fixed regionand a second magnetization fixed region. The magnetization inversion regionhas a magnetization whose orientation is invertible and overlaps the pinned layer. The first magnetization fixed regionis connected with a first boundary Bin the magnetization inversion regionand a magnetization orientation is fixed on a first direction. The second magnetization fixed regionis connected with a second boundary Bin magnetization inversion regionand a magnetization orientation is fixed on a second direction. The first direction and the second direction are opposite to each other.

Magnetic memory cell and magnetic random access memory

A problem of a switching element using for the active layer a carbon nanotube (CNT) dispersion film that can be manufactured at low temperature has been that sufficient electrical contact and thermal conductivity between the CNTs and the source and drain electrode surfaces are not obtained. The switching element of the present invention has a structure in which a mixed layer of carbon nanotubes and a metal material, and a metal layer of the metal material are laminated in this order on source and drain electrodes, and thereby, the CNT-dispersed film and the electrode surfaces can be in firm electrical, mechanical, and thermal contact with each other. Thus, a switching element exhibiting good and stable transistor characteristics is obtained with a low-temperature, convenient, and low-cost process.

Switching element including carbon nanotubes and method for manufacturing the same

This invention provides a semiconductor element which uses a plurality of carbon nanotubes as a current path, can reduce contact resistance of its electrode contact part, and has excellent electrical characteristics. This semiconductor element is characterized in that the semiconductor element includes a current path () comprised of a plurality of carbon nanotubes () and not less than two electrodes () connected with the current path, wherein at least one or more of the electrodes is made of a mixture of a metal and a carbon material () having SPhybridized orbital, such as a multi-walled carbon nanotube, a glassy carbon, and graphite particles.

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Tokyo, Japan

Hideaki Numata