Sony Corporation

Sony Chemicals Corporation

Toru Kihira

Shinichiro Yamada

Hiroshi Imoto

Masafumi Ata

Toru Udaka

Akinori Kita

Yoshihisa Gonno

Eishi Endo

Kenichi Kitamura

Katsuya Shirai

Mitsunobu Sekiya

Kiyoshi Yamaura

Minehisa Imazato

Proton conductors, electrochemical devices employing same and methods of manufacturing same are provided. The proton conductor includes silicon oxide, bronsted acid and a derivative of a carbonaceous material predominantly composed of carbon and proton (H) dissociating groups introduced to carbon atoms of the carbonaceous material. The proton conductor is produced by a step of forming a compound predominantly composed of silicon oxide and bronsted acid by a sol-gel method, and a step of mixing the compound with a derivative of a carbonaceous material obtained on introducing proton (H) dissociating groups to carbon atoms forming a carbonaceous material predominantly composed of carbon.

Proton conductor, process for producing the same, and electrochemical device

An electrochemical device and a method for the preparation thereof, the electrochemical device having a high catalyst utilization efficiency including a gas diffusion electrode formed of a carbonaceous material and having a catalyst formed on at least a portion of its surface, and a proton conducting film provided in contact with one surface of the gas diffusion electrode, wherein the amount of the catalyst formed on the surface of the carbonaceous material contacting the proton conducting film is lesser in amount than on the surface of the carbonaceous material that is not contacting the proton conducting film, thereby appreciably increasing catalyst utilization efficiency and rendering it possible to elevate the energy efficiency of the electrochemical device.

Electrochemical device and method for preparation thereof

An optical device includes an insulation layer formed on a lead electrode of an electrode, an electrode having an indium doped tin oxide in which indium/tin is 1.5 or less by the element ratio, an electrode having a laminate including an oxide layer in which indium is doped to tin and a tin oxide layer, and an electrode having conductive particles as a first layer, a polymeric layer as a second layer and a current collector as a third layer, and the second layer is disposed between the first layer and the third layer. A control device controls a driving current to an electrode in accordance with a temperature and a current supply supplies a current to an electrode for supplementing a dissolved portion of electrodeposited material. The optical device includes a polarization device which polarizes an electrode to an oxidation direction before electrodeposition on the electrode.

Optical device, a fabrication method thereof, a driving method thereof and a camera system

An optical device used for an optical filter or the like capable of controlling a light transmittance or light reflectance in a visible light region, a fabrication method thereof, a driving method thereof and a camera system are provided, including the optical device comprising a working electrode and a counter electrode in which an electrolyte is disposed in contact with both of the electrodes and light is controlled electrochemically by controlling an electric field applied to the electrolyte, and a first layer of the counter electrode present on the side of the electrolyte comprises a metal having a lower ionization tendency than that of a metal deposited at the working electrode, an optical device having a reference electrode having no direct concerns with oxidation/reduction reaction of the working electrode and the counter electrode for measuring the potential for one or both of the electrodes, a method of fabricating an optical device having a counter electrode and a reference electrode comprising a single layer or a laminate structure, comprising forming each of the layers by a gas phase film forming method or the like and forming each of the electrodes as a thin film of a predetermined pattern by etching, a method of driving the optical device by measuring the potential of the working electrode and the counter electrode to the reference electrode and controlling the supply of current as well as a camera system mounting the optical device.

Optical device, a fabricating method thereof, a driving method thereof and a camera system

A non-aqueous electrolyte cell equipped with an anode made of a carbonaceous material capable of intercalating and deintercalating light metal ions and imparted with high capacity characteristics and favorable cyclic properties, wherein the carbonaceous material is obtained by irradiating the carbonaceous material, in a gaseous atmosphere, with an electron beam, accelerated in high vacuum.

Method for producing anode material

A non-aqueous electrolyte cell equipped with an anode made of a carbonaceous material capable of intercalating and deintercalating light metal ions and imparted with high capacity characteristics and favorable cyclic properties, wherein the carbonaceous material is obtained by irradiating, in a gaseous atmosphere, an electron beam accelerated in high vacuum. The anode made of a carbonaceous material is subjected to electron beam irradiation at a dose ranging from 300 kGy to 1000 kGy.

Growing community of inventors

Kanagawa, Japan

Toru Kihira