Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Electric Corporation

Hiroko Higuma

Takayuki Nagai

Fusaoki Uchikawa

Yoshio Kubo

Kunihiko Egawa

Shinichi Fujimoto

Shoji Miyashita

Ai Enomoto

A host computer adds a keycode to e-mail and a terminal unit leads an information gathering candidate to add reply information to the e-mail. When the host computer receives the e-mail to which reply information has been added, the host computer stores the reply information in one of data storage areas having a memory address corresponding to a memory address associated the keycode of the e-mail.

Information gathering system

Information gathering system, terminal unit, program for information gathering, and program for a terminal

A bolometer thin film having a high temperature coefficient of resistance (&verbar;TCR&verbar;) is produced in a simple and easy production process to provide a highly sensitive infrared sensing element. The invention provides a bolometer using a thin film of an oxide represented by Z CuO , wherein Z is one or more alkaline earth metals, one or more rare earth element selected from yttrium and lanthanide elements, one or more elements belonging to Period 5 or Period 6 of the Periodic Table selected from bismuth, lead, thallium, mercury, and cadmium, or potassium or sodium, y is a number satisfying 0&lE;y&lE;2, and x is a number satisfying 0.5y<x&lE;1.5&plus;2y. The bolometer has a temperature coefficient of resistance (&verbar;TCR&verbar;) higher than that of conventional bolometers. This bolometer is produced by forming a bolometer thin film by sputtering using a mixture of an oxide of Cu such as Cu O, CuO or a mixture of Cu O and CuO with an oxide of any of the elements represented by Z, or a complex oxide of these elements as a target.

Bolometer and method for producing bolometer

A compound superconducting wire comprising a matrix of CuX alloy and a multiplicity of Z.sub.3 X filaments embedded in the matrix in a spaced relationship so as not to come into contact with each other wherein X is Sn or Ga and Z.sub.3 X is Nb.sub.3 Sn or V.sub.3 Ga. In a precursor, therefore, a multiplicity of filaments of a base metal material Z such as Nb are arranged in a Cu base metal matrix concentrically in layers around a center core of a base metal material X such as Sn, in which the spacing between any adjacent filaments arranged in a former boundary region of an .epsilon.-phase bronze layer having a certain radius from the center produced when the precursor is preheat-treated at a temperature of 300.degree. to 600.degree. C. is made larger than the spacing between any adjacent filaments arranged in the other matrix regions. Also disclosed is a precursor wire wherein a composite of a Cu base metal material and a base metal material X capable of forming an alloy with the Cu base metal material is used as a matrix without arranging a core of the base metal material X at the center, and a multiplicity of filaments of a base metal material Z are embedded in the composite in a spaced relationship.

Method for manufacturing superconducting wire

A compound superconducting wire comprising a matrix of CuX alloy and a multiplicity of Z.sub.3 X filaments embedded in the matrix in a spaced relationship so as not to come into contact with each other wherein X is Sn or Ga and Z.sub.3 X is Nb.sub.3 Sn or V.sub.3 Ga. In a precursor, therefore, a multiplicity of filaments of a base metal material Z such as Nb are arranged in a Cu base metal metrix concentrically in layers around a center core of a base metal material X such as Sn, in which the spacing between any adjacent filaments arranged in a former boundary region of an .epsilon.-phase bronze layer having a certain radius from the center produced when the precursor is preheat-treated at a temperature of 300.degree. to 600.degree. C. is made larger than the spacing between any adjacent filaments arranged in the other matrix regions. Also disclosed is a precursor wire wherein a composite of a Cu base metal material and a base metal material X capable of forming an alloy with the Cu base metal material is used as a matrix without arranging a core of the base metal material X at the center, and a multiplicity of filaments of a base metal material Z are embedded in the composite in a spaced relationship.

Compound superconducting wire and method for manufacturing the same

A process for preparing a superconducting wire having improved superconducting characteristics in shortened period of time at a reduced cost, which comprises the steps of forming a plurality of holes in each of Cu base metal plates, stuffing the plates in a supporting container to form a stacked body of the plates with their holes aligned with each other, stuffing a superconductor or a material convertible into a superconductor by a heat treatment into the resulting through-holes of the stacked body, evacuating and sealing the supporting container to form a composite billet, and processing the composite billet in a usual manner to give a superconducting wire.

Growing community of inventors

Tokyo, Japan

Hiroko Higuma