Sony Corporation

Other

Sony Chemicals Corporation

Research Institute of Innovative Technology for the Earth

Masafumi Ata

Masashi Shiraishi

Koichiro Hinokuma

Constance Gertrud Rost

Hisashi Kajiura

Ryuichiro Maruyama

Matthias Ramm

Haruo Watanabe

Eisuke Negishi

Koji Kadono

Kazuaki Fukushima

Yongming Li

Bjoern Pietzak

Bj&ouml;rn Pietzak

Shigeaki A Wachi

Shinichiro Yamada

Dharam Pal Gosain

Hiroshi Imoto

Noriyuki Kishii

Akinori Kita

Kenichi Kurihara

Atsuo Yamada

Yoshihisa Gonno

Toru Kihira

Eishi Endo

Houjin Huang

Kenichi Kitamura

Yasunori Kijima

Nobuyuki Matsuzawa

Yuji Yakura

Nobutoshi Asai

Takahiro Kamei

Koichi Kawasumi

Masataka Matsute

Mayumi Miyashita

Shin-Ichiro Tamura

Tomikazu Watanabe

Shinichi Mizuno

Makoto Oogane

Mitsuaki Miyakoshi

Misao Kusunoki

Yoko Hayashi

Shigehide Yamamichi

Masataka Machida

Andrew Hudson

Björn Pietzak

A method of manufacturing a tubular carbon molecule capable of regularly aligning a carbon nanotube with a finer spacing is provided. A catalyst is arranged on a material substrate () made of a semiconductor such as silicon (Si) and including iron (Fe) as a catalyst through the use of melting according to a modulated heat distribution (). The heat distribution () is formed, for example, through diffracting an energy beam () by a diffraction grating (). As a method of arranging the catalyst, for example, iron may be deposited in a planar shape or a projection shape in a position corresponding to the heat distribution (), or the deposited iron may be used as a master to be transferred to another substrate. A carbon nanotube is grown through the use of the arranged catalyst. The grown carbon nanotube can be used as a recording apparatus, a field electron emission device, an FED or the like.

Method of manufacturing tubular carbon molecule and tubular carbon molecule, method of manufacturing recording apparatus and recording apparatus, method of manufacturing field electron emission device and field electron emission device, and method of manufacturing display unit and display unit

Method of manufacturing tubular carbon molecule and tubular carbon molecule, method of manufacturing field electron emission device and field electron emission device, and method of manufacturing display unit and display unit

A microelectronic device and a method for producing the device can overcome the disadvantages of known electronic devices composed of carbon molecules, and can deliver performance superior to the known devices. An insulated-gate field-effect transistor includes a multi-walled carbon nanotube () having an outer semiconductive carbon nanotube layer () and an inner metallic carbon nanotube layer () that is partially covered by the outer semiconductive carbon nanotube layer (). A metal source electrode () and a metal drain electrode () are brought into contact with both ends of the semiconductive carbon nanotube layer () while a metal gate electrode () is brought into contact with the metallic carbon nanotube layer (). The space between the semiconductive carbon nanotube layer () and the metallic carbon nanotube layer () is used as a gate insulating layer. Two layers including the outer semiconductive carbon nanotube layer () and the inner metallic carbon nanotube layer () are selected from carbon nanotube layers of a multi-walled carbon nanotube. These layers are processed into a form suitable for use as the multi-walled carbon nanotube ().

Electronic device and method for producing the same

Disclosed herein are an ionic conductor including a proton conductor, a process for production thereof, and an electrochemical device (such as fuel cell) with said ionic conductor, said ionic conductor being superior in ionic conductivity, water resistance, and film forming properties. The ionic conductor is formed from a polymer in which carbon clusters having ion dissociating functional groups are bonded to each other through connecting groups. The polymer is less water-soluble and more chemically stable than a derivative composed solely of carbon clusters; therefore, it permits many ion dissociating functional group to be introduced thereinto. Moreover, if ion dissociating functional groups are introduced into also the connecting group, it is possible to prevent the concentration of ion dissociating functional groups from decreasing as the result of polymerization. The polymer can be easily synthesized by simple condensation, substitution, and hydrolysis. Therefore, the process is suitable for mass production in high yields.

Ionic conductor, process for production thereof, and electrochemical device

Electronic device and its manufacturing method

A memory element wherein a spin conduction layer having a sufficient spin coherence length and a uniform spin field can be obtained, and thereby practical use is attained and a memory device are provided. A spin conduction layer (paramagnetic layer) () is a fullerene thin film being from 0.5 nm to 5 &#x3bc;m thick, for example. The fullerene has a hollow sized, for example, from 0.1 nm to 50 nm. A paramagnetic material is included in this hollow. A fermi vector of the fullerene thin film well laps over small number of spin band or plenty of spin band of a ferromagnetic fixed layer () and a ferromagnetic free layer (). Further, spin orientations of the included paramagnetic material are random. Further, electron spin in the fullerene is in a quantized state in a pseudo zero dimensional space. Thereby, a spin coherence length becomes long in the fullerene thin film, and scatteration of spin-polarized conduction electrons goes away.

Memory element and memory device

A charge separation heterojunction structure which uses a fullerene polymer film as a part of its constituent materials and which may be used to produce a solar cellor a light emitting diode superior in durability, physical properties of electrons and economic merits. The heterojunction structure is such a structure in which an electron-donating electrically conductive high-polymer film and an electron-accepting fullerene polymer film are layered between a pair of electrodes at least one of which is light transmitting. In forming the layers, the fullerene polymer film is identified using in particular the Raman and Nexafs methods in combination so that upper layers are formed after identifying the polymer film.

Charge separation type heterojunction structure and manufacturing method thereof

A proton conductor mainly contains a carbonaceous material derivative, such as, a fullerene derivative, a carbon cluster derivative, or a tubular carbonaceous material derivative in which groups capable of transferring protons, for example, &#x2014;OH groups or &#x2014;OSOH groups are introduced to carbon atoms of the carbonaceous material derivative. The proton conductor is produced typically by compacting a powder of the carbonaceous material derivative. The proton conductor is usable, even in a dry state, in a wide temperature range including ordinary temperature. In particular, the proton conductor mainly containing the carbon cluster derivative is advantageous in increasing the strength and extending the selection range of raw materials. An electrochemical device, such as, a fuel cell, that employs the proton conductor is not limited by atmospheric conditions and can be of a small and simple construction. The proton conductor may contain a polymer in addition to the carbonaceous material derivative, which conductor can be formed, typically by extrusion molding, into a thin film having a large strength, a high gas permeation preventive ability, and a good proton conductivity.

Proton conductor, production method thereof, and electrochemical device using the same

An ionic conductor, such as a proton conductor, a process for production thereof, and an electrochemical device, such as fuel cell, that includes the ionic conductor is provided. The ionic conductor of the present invention is formed from a polymer in which carbon clusters having ion dissociating functional groups are bonded to each other through connecting groups which can also include one or more ion dissociating functional groups. In this regard, the polymer is less water-soluble and more chemically stable than a derivative composed solely of carbon clusters, thus displaying enhanced ionic conduction properties.

An electrochemical hydrogen flow rate control system is provided. The system has an electrochemical cell and a hydrogen flow rate control unit. The electrochemical cell includes a first electrode for generating protons (H), a second electrode for converting the protons generated by said first electrode into hydrogen gas, and a proton conductive solid electrolyte membrane held between said first and second electrodes. The hydrogen flow rate control unit is adapted to generate a specific amount of hydrogen gas on the second electrode side. The proton conductive solid electrolyte membrane is made from a fullerene derivative obtained by introducing proton dissociative groups in carbon atoms of fullerene molecules. Such a control system is operable even in a non-humidified atmosphere and at room temperature and is configurable as lightweight and compact in system design.

Electrochemical hydrogen flow rate control system

A hydrogen-stored carbonaceous material is provided. The present invention relates to a hydrogen-stored carbonaceous material obtained by storing hydrogen in a carbonaceous material heated at more than about 230&#xb0; C. under pressure in a reducing atmosphere, a battery and a fuel cell using same. The carbonaceous material is heated at more than about 230&#xb0; C. under pressure in a reducing atmosphere so that its surface can be efficiently cleaned and an area where the surface of the carbonaceous material comes into contact with hydrogen atoms or hydrogen molecules is increased.

Carbonaceous material for hydrogen storage, and method for preparation thereof, carbonaceous material having hydrogen absorbed therein and method for preparation thereof, cell and fuel cell using carbonaceous material having hydrogen absorbed therein

A hydrogen-storing carbonaceous material is provided. The hydrogen-storing carbonaceous material is obtained by heating a carbonaceous material in a gas atmosphere including hydrogen gas and substantially including no reactive gas as impurity gas to store hydrogen. According to the present invention, since the surface of the carbonaceous material can be cleaned and hydrogen can be stored in the carbonaceous material in the same gas atmosphere and a hydrogen-stored carbonaceous material can be produced by controlling a heating process time in the gas atmosphere including the hydrogen gas and substantially including no reactive gas as the impurity gas. This can facilitate the use of the hydrogen-stored carbonaceous material as applied to devices, systems, processes and/or the like.

Hydrogen-storing carbonaceous material and method for producing the same, hydrogen-stored carbonaceous material and method for producing the same and battery and fuel cell using hydrogen-stored carbonaceous material

A hydrogen-storing carbonaceous material is provided. The present invention provides a hydrogen-storing carbonaceous material obtained by heating a carbonaceous material at more than about 50&#xb0; C. under the atmosphere of reducing gas, a hydrogen-stored carbonaceous material obtained by hydrogen storage in the carbonaceous material heated at more than about 50&#xb0; C. under the atmosphere of reducing gas, and a battery or a fuel cell using the hydrogen-stored carbonaceous material.

Charge separation type heterojunction structure and manufacturing method therefor

Growing community of inventors

Kanagawa, Japan

Masafumi Ata