JP2001230105A - Electromagnetic wave attenuator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic wave attenuator which is capable of attenuating electromagnetic waves from electronic equipment and preventing them from leaking out and generating negative ions around the electronic equipment so as to provide a comfortable environment for a human lightweight and small in size, and can be easily mounted on an equipment main body. SOLUTION: Mineral containing natural radioactive material is ground into powder, and the powdered mineral is mixed into ferrite material whose main component is iron oxide, a mixture of ferrite material mixed with the powered mineral is baked into a radioactive magnetic chip, a thin film of carbon steel is tensely disposed on the flat surface of the radioactive magnetic chip in one piece, an adhesive is provided to the radioactive magnetic chip, and a release paper is provided thereon so as to solve a problem.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to prevent leakage of electromagnetic waves generated from the inside of, for example, cellular phones and other various electronic devices, and to provide a comfortable environment for the body by generating negative ions around the devices. And an electromagnetic wave attenuator.

[0002]

2. Description of the Related Art In mobile phones and other electronic devices, electromagnetic waves generated from inside the device adversely affect other devices.
Conventionally, countermeasures have been taken to suppress such electromagnetic waves as much as possible because they may cause malfunction.

[0003]

However, suppression of such electromagnetic waves is inherently very difficult. In particular, portable telephones and various other small or portable electronic information devices tend to be smaller. For some reasons, there are also restrictions on the incorporation inside the device, and such portable devices are often worn on the body and come into contact with a part of the body. The effects of are worried.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art. It is an object of the present invention to provide a lightweight and small-sized device which can be easily attached to a device body or the like with one touch. It is another object of the present invention to provide a comfortable environment for the body with little influence on the body.

[0005]

In order to achieve the above object, an electromagnetic wave attenuator according to the present invention comprises a ferrite material containing iron oxide as a main component, a mineral containing a natural radioactive substance mixed in a powder form, It is baked to form a radioactive magnetic chip, and a thin plate of carbon steel is integrally stretched on a flat surface of the radioactive magnetic chip.

The ferrite material may be mixed with a mineral containing a natural radioactive substance and a mineral emitting far-infrared rays in powder form.

Further, the radioactive magnetic chip may be provided with an adhesive portion and a release paper on its surface.

It is preferable that the radioactive magnetic chip is formed in a disk shape.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A radioactive magnetic chip made of a ferrite material is brought close to an electromagnetic wave generation source such as a mobile phone.
The magnetic flux passing through the air near the radioactive magnetic chip is converged on the radioactive magnetic chip and passes through the inside. Since a thin piece of carbon steel is stretched over the radioactive magnetic material chip, when the magnetic flux penetrates the thin piece, an eddy current flows around the magnetic flux to generate heat. Therefore, the magnetic field energy of the electromagnetic wave is converted into heat and consumed as heat, and this energy is attenuated. At the same time, ores containing natural radioactive substances mixed with ferrite material are dispersed in powder form, and negative ions are generated from the entire surface of the radioactive magnetic chip, which is dissipated into the air mainly in electronic devices and is owned. It works directly on the body of the person to create a comfortable environment.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described below with reference to the accompanying drawings.

The radioactive magnetic material chip 1 is formed as a flat disk as shown in FIGS. 1 and 2, and its size is preferably 15 to 25 mm in diameter and 1.5 to 2.5 mm in thickness. . A thin plate 2 made of carbon steel is integrally stretched on the flat portion of the disk. As such a radioactive magnetic chip, a ferrite material containing iron oxide as a main component and a mineral containing a natural radioactive substance are mixed in powder form and mixed.
What is baked at a high temperature of 000 to 1400 degrees is used.

As the natural mineral, for example, a natural radioactive rare element mineral (monaz ore, etc.) containing uranium series, thorium series and radon and thoron generated by their decay is suitable. Such a mineral is pulverized to an average particle size of about 1 micron to form a powder, which is used as a negative ion powder 5.

The mixing ratio of the negative ion powder 5 to the ferrite material is suitably from 10 to 15%. Also,
To this negative ion powder, powdery far-infrared powder, which is obtained by pulverizing a mineral that emits far-infrared rays in the same manner, can also be mixed with the ferrite material.

An adhesive portion 3 is provided on the flat surface of the radioactive magnetic chip 1 produced as described above, and a release paper 4 is provided so as to cover the surface. In this way, when the release paper 4 is peeled off, the adhesive portion 3 is exposed, so that the adhesive portion 3 can be attached to a required portion of an electronic device such as a mobile phone.

When the attenuation rate of the magnetic field and the electric field was tested by using the electromagnetic wave attenuator of the present invention by measuring the shielding effect by the KEC method, the magnetic field was 98% and the electric field was 90%.
FIG. 3 shows a graph of these measurement results.

Also, as a result of measuring the amount of generated negative ions, the first time was 300 IONs / CC and the second time was 350 IONs / 100 ions / CC or less.
Increased to ONS / CC. FIG. 4 is a graph showing the first measurement result.

[0017]

According to the present invention, the electromagnetic wave can be effectively attenuated by the radioactive magnetic chip, and a comfortable environment is provided to the body by generating negative ions. It is lightweight, small and easy to handle, and can be implemented at low cost.

Further, since the present invention is constructed as in claim 2, far-infrared rays are radiated in addition to negative ions.
A more favorable environment can be created.

Further, since the present invention is configured as in claim 3, the radioactive magnetic chip can be adhered to a main body case of a portable telephone or other electronic equipment, and a necessary portion can be selected freely. It is convenient to use because it can be attached to

[Brief description of the drawings]

FIG. 1 is a perspective view of an electromagnetic wave attenuator showing one embodiment of the present invention.

FIG. 2 is an enlarged front view of the above, and a part is shown in cross section.

FIG. 3 is a graph showing measurement results of an electromagnetic wave attenuation rate.

FIG. 4 is a graph showing measurement results of the amount of generated negative ions.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Radioactive magnetic chip 2 Carbon steel sheet piece 3 Adhesion 4 Release paper

[Procedure amendment]

[Submission date] April 20, 2000 (200.4.2
0)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction contents]

The present invention has been made in view of the above-mentioned problems of the prior art, and it is an object of the present invention to provide a light-weight and small-sized device which can be easily attached to a device body or the like with one touch. It is another object of the present invention to provide a comfortable environment for the body with little influence on the body.

Claims (4)

[Claims] 1. A ferrite material containing iron oxide as a main component,
Minerals containing natural radioactive materials are mixed in powder form,
It is baked to form a radioactive magnetic chip (1), and a thin plate of carbon steel (2) is placed on the flat surface of the radioactive magnetic chip (1).
An electromagnetic wave attenuator characterized by being integrally stretched. 2. The electromagnetic wave attenuator according to claim 1, wherein a mineral containing a natural radioactive substance and a mineral emitting far-infrared rays are mixed into the ferrite material in powder form. 3. The electromagnetic wave attenuator according to claim 1, wherein the radioactive magnetic chip (1) is provided with an adhesive portion (3) and a release paper (4) on the surface thereof. 4. The electromagnetic wave attenuator according to claim 1, wherein said radioactive magnetic material chip is formed in a disk shape.