Asahi Kasei Kogyo Kabushiki Kaisha

Asahi Kasei Kabushiki Kaisha

Asahi Kasei Chemicals Corporation

Asahi Kasei Kogyo K.k.

Isao Morimoto

Koichi Mori

Masafumi Nakao

Toshio Suzuki

Toshinori Hachiya

Hideo Shingu

Shuichiro Ogawa

Keiichi Ishihara

Nobuyoshi Imaoka

Masato Terada

Kazuhiro Nishimura

Takeaki Sasaki

Masanobu Sato

Shozo Yamanaka

Kouichi Mori

Kazuyoshi Itagaki

An electrode catalyst comprising a conductive carrier, and a mixture containing a particulate noble metal and at least one particulate rare-earth oxide, the mixture being supported on the conductive carrier wherein the particulate rare-earth oxide has an alkaline-earth metal as solid solution therein.

Electrode catalyst for oxygen reduction and gas diffusion electrode

A thermoelectric material having a high Seeback coefficient and a large power factor and excellent in shock resistance, thermal strain resistance, and formability, and a thermoelectric element are disclosed. The thermoelectric material and thermoelectric element is composed of a multilayered body made up of a laminar body of a semimetal, a metal, or a synthetic resin and a laminar body of a semimetal. The average thickness of the laminar bodies ranges from 0.3 nm to 1000 nm. Embodiments of the combination of the laminar bodies are Bi&mdash;Al, Bi-polyamide series resin, and Ag&mdash;Fe. Such a multilayered body is manufactured by forming an initial multilayered body composed of all the types of laminar bodies constituting the multilayered body and rolling or uniaxially pressing a stack of such initial multilayered bodies.

Thermoelectric material and method for manufacturing the same

A phase change optical disk having a reflectance relation of Rc<Ra and is adapted such that high recording characteristic can be obtained starting at a first recording time even when a recording operation is carried out without conducting an initialization process. For this purpose, a multiple reflection layer ( ), a first dielectric layer ( ), a recording layer ( ), a second dielectric layer ( ), a reflecting layer ( ) and an UV curable resin layer ( ) are provided on a substrate ( ). The recording layer ( ) is deposited at a temperature of the substrate during the deposition of the recording layer set to a temperature which makes the recording layer into a stable amorphous conditions and which is lower than a crystallizing temperature of the recording layer. Thus, the recording layer ( ) is deposited into a stable amorphous state.

Phase-changeable optical recording medium, method of manufacturing the same, and method of recording information on the same

Method of designing a phase-change optical recording medium, and a

A method for recording and erasing information by irradiating a specific recording medium with a single laser beam, which is applied with two different intensities respectively for crystallizing a recording layer of the recording medium and for amorphizing a recording layer of the recording medium. According to the present invention, both the recording of information and the erasing of information can be simply performed using a single laser beam by changing only its intensity between the two different laser beam intensities according to a laser beam intensity pattern corresponding to predetermined information. The recording material comprises Sb, Te, Ge and at least one element selected from the group consisting of Pb, Bi, In, Sn and Tl.

Method for recording and erasing information

An information recording medium comprising a substrate and superimposed thereon a recording layer composed of Sb, Te and Ge has been found to be advantageously employed, because of its high thermal stability as well as high sensitivity and high S/N ratio, in a system of recording information by exposing an energy beam to a recording medium to cause the exposed areas to be different in optical extinction coefficient from the non-exposed areas.

Information recording medium

An information recording material comprising a substrate, a metallic recording layer composed mainly of Bi and a Cr layer interposed therebetween has been found to be extremely excellent in C/N ratio as well as in storage stability and archivability. The information recording material of this type can be advantageously employed for video image signal memory, still video recording, and the like.

Information recording material

An information recording material comprising a substrate and a metallic recording layer, the metallic recording layer comprising a Bi film containing at least one rare earth element. The information recording material exhibits a remarkably increased sensitivity while maintaining a high S/N ratio. Where the information recording material further comprises at least one stabilizing layer of a metal oxide and/or at least one mixture layer of a metallic compound and a metal, further improvements can be attained with respect to S/N ratio, storage stability and archivability.

Growing community of inventors

Fuji, Japan

Isao Morimoto