Seisan Kaihatsu Kagaku Kenkyusho

Nec Corporation

Nippon Steel Corporation

Kanegafuchi Chemical Industry Co., Ltd.

Matsushita Electric Industrial Co., Ltd.

Tdk Corporation

Ube Industries, Inc.

Tosoh Corporation

Toyo Boseki Kabushiki Kaisha

Nippon Mining Co., Ltd.

Kyodo Oxygen Co., Ltd.

Matsushita Electric Inductris Co., Ltd.

Yoshichika Bando

Toshio Takada

Takahito Terashima

Kenji Iijima

Kazunuki Yamamoto

Kazuto Hirata

Hideaki Takano

Keizo Iwase

Yasushi Tomiku

Ferromagnetic granular ultrafine particles consisting essentially of .epsilon.' iron carbide represented by the composition formula:

Ferromagnetic fine particles of .epsilon. iron carbide and method for

A process for forming a single crystal superconducting LnA.sub.2 Cu.sub.3 O.sub.7-x film, wherein Ln is at least one rare earth element and A is at least one alkaline earth element, is disclosed, which comprises simultaneously evaporating Ln, A and Cu in an atomic ratio of about 1:2:3 from discrete evaporation sources of Ln, A and Cu onto a heated substrate in a vacuum vessel while blowing an oxygen gas onto the substrate to form an oxygen-containing atmosphere, thereby forming the single crystal superconducting film on the substrate.

Method for producing single crystal superconducting LnA.sub.2 Cu.sub.3

A ferroelectric thin film consisting of a single crystal of BaTiO.sub.3 which has a perovskite structure is produced by a method comprising evaporating Ba and Ti in an atomic ratio of 1:1 from discrete evaporation sources of Ba and Ti to deposit them on a substrate in a vacuum deposition vessel while supplying a small amount of an oxygen gas to the reactor.

Single crystal ferroelectric barium titanate films

A laminated film comprising at least two thin films of single crystal LnBa.sub.2 Cu.sub.3 O.sub.7-x wherein Ln is Y or one of lanthanoids except Pr and Tb having the (001) plane in the direction parallel with the film surface and at least one continuous thin film of Y.sub.2 O.sub.3 which has a thickness of not larger than 100 .ANG. and the (001) plane in the direction parallel with the film surface and is interposed between a pair of said thin films of single crystal LnBa.sub.2 Cu.sub.3 O.sub.7-x, wherein the thin films of single crystal LnBa.sub.2 Cu.sub.3 O.sub.7-x has good superconductive properties.

Laminated film

A method of making a polycrystalline Mn containing ferrite body composed of crystallites which have the (111)-crystallographic planes thereof oriented substantially parallel with each other. The method involves providing a manganese compound, forming a body of a mixture made up of the manganese compound and other ferrite constituents, and heating the body made of the mixture into a polycrystalline Mn containing ferrite body of a spinel structure, wherein the manganese compound is in the form of thin platelets which have substantially parallel major surfaces oriented substantially in one direction in the body of the mixture. The ferrite body made thereby is a dense polycrystalline ferrite body having improved resistance to crumbling, improved wear characteristics and suitable physical properties for e.g. magnetic heads.

Method of making a polycrystalline Mn containing ferrite body

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Shiga, Japan

Yoshichika Bando