Mitsubishi Chemical Industries Limited

Nec Corporation

Mitsubishi Kasei Corporation

Hitachi Chemical Company, Ltd.

Mitsubishi Kasei Polytec Company

Clean Venture 21 Corporation

Mitsubishi Kasai Corporation

Yukio Yamaguchi

Suguru Noda

Yoshihiro Omae

Hiromi Horiuchi

Hisashi Sugime

Toshihiko Yoshitomi

Yoshio Yoshino

Yasuo Kamoshita

Kiyoshi Sekihara

Koji Tsuchihashi

Kenzo Tsujikawa

Shinji Watanabe

Atsushi Murakami

Nobuo Enokido

Fumiaki Yokoyama

Toshio Osawa

Toru Tanaka

Dong Young Kim

Seiichi Isomae

Yuji Kuramitsu

Junichi Matsuura

Kei Hasegawa

Mutsuo Tsuji

Heihachi Yushina

Kazunaga Komizo

Masanobu Ishida

Kazunori Kakehi

Kazutoshi Iwatani

Kenji Kato

Takashi Takaoka

Masaki Miyazaki

Masatoshi Ichikawa

Takeshi Sakuma

Fumio Orito

Hideo Okada

Kizuku Katano

Fumikazu Yajima

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

[Problems to be Solved]There is provided a method for production of a carbon nanotube, which allows for production of the carbon nanotube in a large scale and at a low cost. [Solution] The temperature of a catalyst loaded on a support is raised by heating the support and a raw material gas containing a carbon source is supplied on the catalyst to synthesize the carbon nanotube. The synthesized carbon nanotube is recovered, and after the recovery, the catalyst is subjected to a regeneration treatment to repeatedly utilize the support. Since the catalyst deteriorates, the catalyst is regenerated periodically or nonperiodically during the production. The regeneration treatment of the catalyst involves an oxidation treatment of the catalyst. Further, after the oxidation treatment, a reducing gas is fed to and brought into contact with the catalyst surface to reduce the catalyst. As the support, a honeycomb is used.

Method for production of carbon nanotube

A semiconductor chip of the present invention has a wiring substrate and a chip part. The wiring substrate has an insulating resin layer having a first major surface and a second major surface, and a first wiring layer disposed on the insulating resin layer on the second major surface side. The chip part has a projection electrode on the bottom surface. The insulating resin layer holds the chip part such that the bottom and side surfaces of the chip part are in contact with the insulating resin layer, and the top surface of the chip part is exposed on the insulating layer on the first major surface side. The projection electrode of the chip part is connected with the first wiring layer.

Electronic device having a wiring substrate

A method for producing semiconductor or metal particles comprises the steps of: storing a semiconductor or metal melt in a crucible having a nozzle; supplying a gas comprising at least one selected from the group consisting of He, Ne, Ar, Kr and Xe into the crucible such that the pressure of the supplied gas in a space over the melt in the crucible is higher than the pressure of a gaseous phase into which the melt is dropped; dropping the melt from the nozzle into the gaseous phase by the pressure of the gas to form liquid particles; and solidifying the liquid particles in the gaseous phase to obtain semiconductor or metal particles. The crucible comprises at least one selected from the group consisting of hexagonal BN, cubic BN, SiN, TiB, ZrB, zirconia and stabilized zirconia at least near the nozzle. Alternatively, the crucible comprises quartz glass at least near the nozzle and has a heat-resistant support member for suppressing deformation caused by a decrease in viscosity of the quartz glass at high temperatures.

Method and apparatus for producing semiconductor or metal particles

In a chip-carrier provided with a chip-carrier substrate, a chip-carrier cover and an IC chip, said IC chip being arranged at a distance from a circuit surface of the IC chip being directed toward the chip-carrier substrate, an .alpha.-ray shielding film made of film material containing few radioactive elements, and adhered to a surface of the chip-carrier substrate facing the IC chip or to the circuit surface of the IC chip is provided for protecting the IC chip from the IC chip.

Chip-carrier

A system for setting an analysis condition for a thermal analysis of a fluid inside an apparatus, wherein a gas flow-in temperature in the apparatus, a gas flow-in rate, and an apparatus outer wall temperature are set as critical conditions, the interior of the apparatus being under a high pressure atmosphere and heated by a heater, an analysis mesh shape, a pressure inside the apparatus and other values, and a heater power, are set as initial values, and a simulation is carried out so that an optimum operating condition is obtained, wherein the relationship between heater power by which a heater monitoring temperature is maintained at a constant value and a gas flow rate at the entrance while changing the apparatus internal pressure is obtained by a trial experiment, and the simulation is carried out by changing the gas flow rate at the entrance in accordance with the heater power and the gas flow rate at the entrance set as the initial value.

System for setting analysis condition for a thermal analysis of a fluid

A method for producing a magnetic recording medium, which comprises forming, by sputtering, a thin undercoating layer and a thin cobalt alloy magnetic layer sequentially on a substrate, wherein an intermediate electrode is provided in the vicinity of the target to enclose at least 1/2 of the circumference of the sputter erosion end of the target, and at least one of the undercoating layer and the cobalt alloy magnetic layer is formed under such condition that a positive potential relative to the substrate and the grounded portion of the main body of the layer-forming apparatus, is applied to the intermediate electrode.

Method and apparatus for producing a magnetic recording medium

A method fo controlling fuel for a coke oven by a programmed heating method in which the fuel supply rate is changed at least once during the coal carbonization process in the coke oven, wherein the improvement comprises conducting the substantial reduction of the fuel supply rate from a large flow rate at the initial stage of the carbonization to a small flow rate inclusive of a zero rate when the coal center temperature, i.e. the temperature at the center of the coal packed in the carbonization chamber, is within a range of from 350.degree. to 700.degree. C.

Method of controlling fuel for a coke oven

An insulative magnetic toner disclosed herein comprises a magnetic powder, a negative charge control agent, a binder resin and a compound having phenazine ring amorphous-silicon photoreceptor. The magnetic toner according to the invention is effective for preventing the occurrence of picture image blurring under high humidity when used in an amorphous-silicon photoreceptor.

Magnetic toner for electrophotography

A cooling system for an electronic system comprises a connector mounted on a panel and an integrated circuit package removably connected to the connector by a mounting frame. A layer of heat conductive bonding material is provided between the package and a heat conductive member which is removably secured to a water-cooling heat exchanger. A plurality of guide posts are secured to the panel for holding the heat exchanger. Each guide post is formed with an externally threaded portion which engages with a thumb nut. A coil spring is provided between each thumb nut and the heat exchanger to exert a predetermined amount of contact pressure between the connector and package and take the weight of the heat exchanger.

Liquid cooling system for integrated circuit chips

An amorphous silicon photoreceptor for electrophotography having a specific surface roughness is disclosed herein. Also provided are a process for the preparation and/or regeneration of the material and improved methods for electrophotography, which use a special abrasive. The material enables the electrophotography without occurance of any image blurring under high humidity conditions.

Amorphous silicon hydride photoreceptors for electrophotography, process

A method of regulating fuel for a coke oven by a programmed heating method in which a change of the fuel supply rate contains at least one substantial reduction during the coal carbonization process in the coke oven, wherein the improvement comprises setting up a standard curve for the ethylene concentration or the tar concentration based on the operating conditions of the coke oven and the conditions of feed coal, measuring the ethylene concentration or the tar concentration in the coke oven gas generated in the carbonization chamber, and controlling the fuel supply rate so as to minimize the difference between the measured value and the standard value.

Method of regulating fuel supply rate for heating a coke oven

In a process for polymerizing an olefin in the presence of a catalyst system combining an organoaluminum compound with a hydrocarbon insoluble solid catalytic component prepared by treating a hydrocarbon solution containing a magnesium compound, and a titanium compound with an aluminum halide having the formula

Process for polymerizing olefin

A gas separation membrane comprises a main component of a mixture of a polyvinyltriorganosilane and an organopolysiloxane. The gas separation membrane has a dense layer having a gas selective permeability and a thickness of 0.01 to 10.mu. and a porous layer having open pores and a thickness of greater than 10.mu..

Gas separation membrane

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Kawasaki, Japan

Yukio Yamaguchi