JPH076873A - Microwave oven - Google Patents
Microwave ovenInfo
- Publication number
- JPH076873A JPH076873A JP14372893A JP14372893A JPH076873A JP H076873 A JPH076873 A JP H076873A JP 14372893 A JP14372893 A JP 14372893A JP 14372893 A JP14372893 A JP 14372893A JP H076873 A JPH076873 A JP H076873A
- Authority
- JP
- Japan
- Prior art keywords
- overhanging
- side wall
- door
- extending
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/76—Prevention of microwave leakage, e.g. door sealings
- H05B6/763—Microwave radiation seals for doors
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Constitution Of High-Frequency Heating (AREA)
- Electric Ovens (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、電子レンジの電波漏洩
防止構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio wave leakage prevention structure for a microwave oven.
【0002】[0002]
【従来の技術】従来、この種の電子レンジは特開昭63
−43287号に示されている。このものは、加熱室の
開口周縁に設けたフランジに平面接触する封口面と、該
封口面の端部から略直角に延設した側壁面と、該側壁面
の端部から略直角に延設した底面をドア本体と一体形成
し、前記底面には、前記底面に平面接触する取付面と、
該取付面の端部から前記側壁面に略平行して延設した立
上面と、該立上面の端部から前記底面に略平行に延設し
た張出面とから形成されるコ字状導体片が取り付けられ
ている。2. Description of the Related Art Conventionally, a microwave oven of this type has been disclosed in Japanese Patent Laid-Open No.
-43287. This is a sealing surface that comes into planar contact with a flange provided on the periphery of the opening of the heating chamber, a side wall surface that extends substantially at a right angle from the end of the sealing surface, and a substantially right angle that extends from the end of the side wall surface. The bottom surface is integrally formed with the door body, and the bottom surface has a mounting surface that comes into planar contact with the bottom surface,
A U-shaped conductor piece formed of an upright surface extending from an end of the mounting surface substantially parallel to the side wall surface, and an overhanging surface extending from an end of the upright surface substantially parallel to the bottom surface. Is attached.
【0003】上述のコ字状導体片をドア本体の前記底面
に取り付けた電子レンジのドアについて、図1、図2及
び図3に基づいて説明する。A microwave oven door in which the above-mentioned U-shaped conductor piece is attached to the bottom surface of the door body will be described with reference to FIGS. 1, 2 and 3.
【0004】図1において、1は電子レンジ本体、2は
加熱物を収納する加熱室、3は該加熱室2の前面開口を
開閉するドア、4は前記加熱室2の前面開口の周縁に設
けたフランジ、5は電子レンジの加熱操作を行う操作部
である。In FIG. 1, 1 is a microwave oven main body, 2 is a heating chamber for accommodating a heating object, 3 is a door for opening and closing a front opening of the heating chamber 2, and 4 is a peripheral edge of the front opening of the heating chamber 2. The flange 5 is an operation unit for heating the microwave oven.
【0005】ドアパネルを外したドア3を図2、図3に
示す。6は電子レンジのドア本体、7はドア本体6の略
中央部に設け、パンチング穴を多数穿設しているパンチ
ング板部、8は電子レンジ本体側に曲げた段部9を介し
て前記パンチング板部7と略平行に且つドア本体6の外
周方向に延設し、前記フランジ4と平面接触する封口
面、10は該封口面8の端部から前記段部9と逆方向に
且つ略直角に曲げて延設した側壁面、11は該側壁面1
0の端部からドア本体6の外周方向に且つ略直角に曲げ
て延設した底面、12は該底面11の端部から前記段部
9と同方向に略直角に曲げて延設した外側壁である。該
外側壁12の高さは、側壁面10の高さに比べて大変低
くしている。The door 3 with the door panel removed is shown in FIGS. 6 is a door body of the microwave oven, 7 is a punching plate portion provided substantially at the center of the door body 6 and having a large number of punching holes, and 8 is the punching through a step portion 9 bent toward the microwave oven body. A sealing surface 10 which extends substantially parallel to the plate portion 7 and extends in the outer peripheral direction of the door body 6 and which comes into planar contact with the flange 4 is provided with an end portion of the sealing surface 8 in a direction opposite to the step 9 and at a substantially right angle. A side wall surface 11 which is bent and extended into
A bottom surface extending from the end portion of 0 toward the outer peripheral direction of the door body 6 at a substantially right angle, and an outer wall 12 extending from the end portion of the bottom surface 11 at a substantially right angle in the same direction as the stepped portion 9. Is. The height of the outer wall 12 is much lower than that of the side wall surface 10.
【0006】尚、前記パンチング板部7、封口面8、段
部9、側壁面10、底面11、外側壁12は、ドア本体
6の外周に形成され、プレス加工により一体成形される
ものである。The punching plate portion 7, the sealing surface 8, the step portion 9, the side wall surface 10, the bottom surface 11 and the outer side wall 12 are formed on the outer periphery of the door body 6 and are integrally formed by press working. .
【0007】13はドア本体6の4辺夫々の前記底面1
1に取り付けられる周期構造体となるコ字状導体片であ
り、前記底面11と平面接触する取付面14と、該取付
面14の端部から前記側壁面10と平行に延設する立上
面15と、該立上面15の端部から側壁面10方向に張
り出して延設する張出面16とから構成されている。ま
た、前記立上面15と張出面16とはドア本体6の外周
に沿って連続しているわけでなく、等間隔にスリット1
7が設けられている。Reference numeral 13 denotes the bottom surface 1 on each of the four sides of the door body 6.
1 is a U-shaped conductor piece serving as a periodic structure that is attached to 1, and has a mounting surface 14 that comes into planar contact with the bottom surface 11, and an upright surface 15 that extends from an end of the mounting surface 14 in parallel with the side wall surface 10. And an overhanging surface 16 extending from the end of the upright surface 15 toward the side wall surface 10. Further, the upright surface 15 and the overhanging surface 16 are not continuous along the outer periphery of the door body 6, and the slits 1 are evenly spaced.
7 is provided.
【0008】尚、該スリット17は、上述では立上面1
5と張出面16に設けるようになっているが、この状態
ではコ字状導体片13の強度が低く、製造時に何かにぶ
つかるとすぐに曲がって寸法が変わり、電波漏洩の原因
となるので、強度を重視するために張出面16だけに設
けるようにしてもよい。Incidentally, the slit 17 is the rising surface 1 in the above description.
5 and the overhanging surface 16, the strength of the U-shaped conductor piece 13 is low in this state, and if it hits anything during manufacturing, it will bend immediately and the dimensions will change, causing radio wave leakage. Alternatively, it may be provided only on the overhanging surface 16 in order to emphasize strength.
【0009】前記ドア本体6の側壁面10、底面11と
コ字状導体片13とでチョーク溝を形成する。The side wall surface 10 and the bottom surface 11 of the door body 6 and the U-shaped conductor piece 13 form a choke groove.
【0010】[0010]
【発明が解決しようとする課題】しかしながら、図2に
おいて、ドア本体1のコーナー部の側壁面10の曲がり
度合と外壁面12の曲がり度合、即ちT部分のxとy間
の円弧の半径が余り小さくできない。However, in FIG. 2, the degree of bending of the side wall surface 10 at the corner of the door body 1 and the degree of bending of the outer wall surface 12, that is, the radius of the arc between x and y of the T portion is excessive. I can't make it smaller.
【0011】これは、プレス加工でコーナー部を形成す
るとき、コーナー部の材料がカーブを描いて形成するの
で他の部分に比べて大きな張力がかかるが、コーナー部
の半径が小さいと張力のかかる面積は小さくなり、単位
面積当りの張力が大きくなって、材料がその張力に耐え
られず割れる原因となる。This is because when the corner portion is formed by press working, the material of the corner portion is formed in a curved shape so that a larger tension is applied as compared with the other portions, but when the radius of the corner portion is small, tension is applied. The area becomes smaller and the tension per unit area becomes larger, which causes the material to withstand the tension and crack.
【0012】また、コ字状導体片13の張出面16の張
出寸法Bは全て同じであるため、張出面16の端部と側
壁面10との距離Aより、コーナー部における張出面1
6と側壁面10との距離A’が大きくなってしまう。Further, since the overhanging dimension B of the overhanging surface 16 of the U-shaped conductor piece 13 is all the same, the overhanging surface 1 at the corner portion is determined from the distance A between the end of the overhanging surface 16 and the side wall surface 10.
The distance A'between 6 and the side wall surface 10 becomes large.
【0013】そのために、コーナー部以外のチョーク溝
の共振周波数は、電子レンジ本体1から漏洩する電波の
周波数と一致して外部に漏洩することを防止できるが、
コーナー部では距離A’が距離Aより大きくなった分、
共振周波数が高い方向にずれて漏洩する電波と一致せ
ず、電波の漏洩を防止することができなくなってしま
う。Therefore, the resonance frequency of the choke groove other than the corner portion matches the frequency of the radio wave leaking from the microwave oven main body 1 and can be prevented from leaking to the outside.
At the corner, the distance A'becomes larger than the distance A,
The resonance frequency does not match the leaked radio wave in the high direction, and the leak of the radio wave cannot be prevented.
【0014】本発明は、斯る課題を解決するものであ
る。The present invention solves this problem.
【0015】[0015]
【課題を解決するための手段】本発明の課題を解決する
手段は、加熱物を収納するために周囲にフランジ部を有
する開口を設けた加熱室と、該加熱室の開口を開閉する
ドアと、該ドアに取り付けられるコ字状導体片を備え、
前記ドアは、閉塞時前記フランジ部に対向する封口面
と、該封口面の端部から略直角で且つ前記フランジ部か
ら離れる方向に延設する側壁面と、該側壁面の端部から
略直角に延設し、前記封口面に略平行な底面とから構成
され、また前記コ字状導体片は、前記底面に接する取付
面と、該取付面の端部から延設する前記側壁面と略平行
な立上面と、該立上面の端部から前記側壁面方向に延設
する張出面と、少なくとも前記張出面に所定間隔で設け
たスリットから構成されるものにおいて、前記ドアのコ
ーナー部近傍の前記張出面の張出寸法は、他の張出面の
張出寸法より大きくした構成である。Means for solving the problems of the present invention include a heating chamber provided with an opening having a flange portion in the periphery for accommodating a heating object, and a door for opening and closing the opening of the heating chamber. , Comprising a U-shaped conductor piece attached to the door,
The door has a sealing surface facing the flange portion when closed, a side wall surface extending substantially at a right angle from an end portion of the sealing surface and extending in a direction away from the flange portion, and a substantially right angle from an end portion of the side wall surface. And a bottom surface that is substantially parallel to the sealing surface, and the U-shaped conductor piece has a mounting surface that contacts the bottom surface and a sidewall surface that extends from an end of the mounting surface. In the vicinity of the corner portion of the door, in a configuration including a parallel upright surface, an overhanging surface extending from the end of the upright surface in the side wall surface direction, and slits provided at least at predetermined intervals on the overhanging surface, The overhanging dimension of the overhanging surface is larger than the overhanging dimensions of the other overhanging surfaces.
【0016】また、加熱物を収納するためにフランジ部
を有する開口を設けた加熱室と、該加熱室の開口を開閉
するドアと、を備え、前記ドアは、閉塞時前記フランジ
部に対向する封口面と、該封口面の端部から略直角で且
つ前記フランジ部から離れる方向に延設する側壁面と、
該側壁面の端部から略直角に延設し、前記封口面に略平
行な底面と、該底面の端部から前記側壁面に略平行に延
設する立上面と、該立上面の端部から前記側壁面方向に
延設する前記底面に略平行な張出面と、少なくとも前記
張出面に所定間隔で設けたスリットと、からなり、前記
底面と前記立上面と前記張出面とでコ字状導体片を形成
するものにおいて、前記ドアのコーナー部近傍の前記張
出面の張出寸法は、他の張出面の張出寸法より大きくし
た構成である。Further, there is provided a heating chamber having an opening having a flange portion for accommodating a heated object, and a door for opening and closing the opening of the heating chamber, the door facing the flange portion when closed. A sealing surface, and a side wall surface extending substantially at a right angle from the end of the sealing surface and away from the flange portion,
A bottom surface that extends from the end of the side wall surface at a substantially right angle and that is substantially parallel to the sealing surface, an upright surface that extends from the end of the bottom surface substantially parallel to the side wall surface, and an end of the upright surface. From the overhanging surface extending in the direction of the side wall surface substantially parallel to the bottom surface, and slits provided at least at predetermined intervals on the overhanging surface, and the bottom surface, the upright surface, and the overhanging surface are U-shaped. In the case of forming the conductor piece, the overhanging dimension of the overhanging surface near the corner portion of the door is larger than the overhanging dimension of the other overhanging surface.
【0017】[0017]
【作用】即ち、ドアのコーナー部近傍のコ字状導体片の
張出面の張出寸法を他の部分の張出寸法に比べて大きく
することにより、ドア本体の側壁面と張出面の端面との
間の距離を狭くしてコーナー部以外の共振周波数とコー
ナー部の共振周波数を略等しくし、電波の漏洩を防止す
るものである。In other words, by making the overhanging dimension of the U-shaped conductor piece near the corner of the door larger than the overhanging dimension of other portions, the side wall surface of the door body and the end surface of the overhanging surface are The distance between them is narrowed to make the resonance frequencies other than the corners and the resonance frequencies of the corners substantially equal to each other to prevent radio wave leakage.
【0018】[0018]
【実施例】以下に本発明の実施例を説明するが、上述の
従来の技術と同じ番号を付したものは同じ機能を有する
ので説明を省略する。Embodiments of the present invention will be described below. However, the same reference numerals as those of the above-mentioned conventional technique have the same functions, and therefore the description thereof will be omitted.
【0019】図4において、コ字状導体片13の張出面
16のうち、ドア本体6のコーナー部Tに面する張出面
18は、側壁面10に略沿った形状で側壁面10への張
出寸法B’を他の張出寸法Bより大きくしている。In FIG. 4, among the projecting surfaces 16 of the U-shaped conductor piece 13, a projecting surface 18 facing the corner portion T of the door body 6 has a shape that is substantially along the side wall surface 10 and projects to the side wall surface 10. The overhanging dimension B ′ is made larger than the other overhanging dimension B.
【0020】この張出寸法B’は、張出面18の端部と
側壁面10との距離A’が他の部分の張出面16の端部
と側壁面10との距離Aが等しくなるまで張り出させる
と、チョーク溝の断面積が大きくなって共振周波数は逆
に低い方向にずれてしまい、漏洩電波と一致せず、電波
漏洩が防止できないので、他の張出面18よりは大きく
するが、距離A’が距離Aと等しくなるまでは大きくし
ないようにしている。This overhanging dimension B'is set so that the distance A'between the end of the overhanging surface 18 and the side wall surface 10 becomes equal to the distance A between the end of the overhanging surface 16 of the other portion and the side wall surface 10. When it is made to extend, the cross-sectional area of the choke groove becomes large and the resonance frequency deviates in the opposite direction to the lower direction, which does not match the leaked radio wave and radio wave leakage cannot be prevented, so it is made larger than the other overhang surface 18, The distance A ′ is not increased until it becomes equal to the distance A.
【0021】尚、上述の張出面18の形状は、図4の形
状に限定されるものではなく、コーナー部Tの曲がり度
合に略沿った形状、例えば図5の(a)から(d)に示
したような形状であってもよい。The shape of the above-mentioned overhanging surface 18 is not limited to the shape shown in FIG. 4, and the shape substantially conforms to the degree of bending of the corner portion T, for example, from (a) to (d) of FIG. It may have a shape as shown.
【0022】図6及び図7は本願発明の他の実施例を示
したものであり、上述で説明した図4の実施例とは、コ
字状導体片13がドア本体6に一体形成されたものであ
り、外側壁12がなくなって立上面15がドア本体6の
外側壁となり、また一体形成するのでコ字状導体片13
の取付面14がなくなっている。FIGS. 6 and 7 show another embodiment of the present invention, in which the U-shaped conductor piece 13 is integrally formed with the door body 6 as compared with the embodiment of FIG. 4 described above. Since the outer wall 12 is eliminated and the rising surface 15 becomes the outer wall of the door body 6, and is integrally formed, the U-shaped conductor piece 13 is formed.
The mounting surface 14 of is removed.
【0023】即ち、底面11と立上面15と張出面16
とがコ字状導体片13を形成することになる。That is, the bottom surface 11, the upright surface 15, and the overhanging surface 16
And form the U-shaped conductor piece 13.
【0024】他の部分については全く変わらず、上述の
実施例と同じ機能を有している。The other parts are completely the same and have the same functions as those of the above-mentioned embodiment.
【0025】[0025]
【発明の効果】本発明によれば、ドアのコーナー部から
の電波漏洩が防止でき、しいては電子レンジの安全性と
信頼性を向上できるものである。According to the present invention, it is possible to prevent the electric wave from leaking from the corner portion of the door and improve the safety and reliability of the microwave oven.
【図1】本発明の電子レンジの外観図である。FIG. 1 is an external view of a microwave oven of the present invention.
【図2】従来のドア本体のコーナー部拡大図である。FIG. 2 is an enlarged view of a corner portion of a conventional door body.
【図3】図2中のC−C’断面斜視図である。FIG. 3 is a cross-sectional perspective view taken along the line C-C ′ in FIG.
【図4】本発明のドア本体のコーナー部拡大図である。FIG. 4 is an enlarged view of a corner portion of the door body of the present invention.
【図5】コ字状導体片の張出面の形状図である。FIG. 5 is a shape diagram of a projecting surface of a U-shaped conductor piece.
【図6】本発明の他の実施例のドア本体のコーナー部拡
大図である。FIG. 6 is an enlarged view of a corner portion of a door body according to another embodiment of the present invention.
【図7】図6中のD−D’断面斜視図である。7 is a cross-sectional perspective view taken along the line D-D 'in FIG.
2 加熱室 3 ドア 4 フランジ 8 封口面 10 側壁面 11 底面 13 コ字状導体片 14 取付面 15 立上面 16,18 張出面 17 スリット 2 Heating chamber 3 Door 4 Flange 8 Sealing surface 10 Side wall surface 11 Bottom surface 13 U-shaped conductor piece 14 Mounting surface 15 Elevating surface 16, 18 Overhanging surface 17 Slit
Claims (2)
部を有する開口を設けた加熱室と、該加熱室の開口を開
閉するドアと、該ドアに取り付けられるコ字状導体片を
備え、前記ドアは、閉塞時前記フランジ部に対向する封
口面と、該封口面の端部から略直角で且つ前記フランジ
部から離れる方向に延設する側壁面と、該側壁面の端部
から略直角に延設し、前記封口面に略平行な底面とから
構成され、また前記コ字状導体片は、前記底面に接する
取付面と、該取付面の端部から延設する前記側壁面と略
平行な立上面と、該立上面の端部から前記側壁面方向に
延設する張出面と、少なくとも前記張出面に所定間隔で
設けたスリットから構成されるものにおいて、前記ドア
のコーナー部近傍の前記張出面の張出寸法は、他の張出
面の張出寸法より大きくしたことを特徴とする電子レン
ジ。1. A heating chamber provided with an opening having a flange portion in the periphery for housing a heating object, a door for opening and closing the opening of the heating chamber, and a U-shaped conductor piece attached to the door, The door has a sealing surface facing the flange portion when closed, a side wall surface extending substantially at a right angle from an end portion of the sealing surface and extending in a direction away from the flange portion, and a substantially right angle from an end portion of the side wall surface. And a bottom surface that is substantially parallel to the sealing surface, and the U-shaped conductor piece has a mounting surface that contacts the bottom surface and a sidewall surface that extends from an end of the mounting surface. In the vicinity of the corner portion of the door, in a configuration including a parallel upright surface, an overhanging surface extending from the end of the upright surface in the side wall surface direction, and slits provided at least at predetermined intervals on the overhanging surface, The overhanging dimension of the overhanging surface is larger than the overhanging dimensions of other overhanging surfaces. A microwave oven characterized by its ability to work.
する開口を設けた加熱室と、該加熱室の開口を開閉する
ドアと、を備え、前記ドアは、閉塞時前記フランジ部に
対向する封口面と、該封口面の端部から略直角で且つ前
記フランジ部から離れる方向に延設する側壁面と、該側
壁面の端部から略直角に延設し、前記封口面に略平行な
底面と、該底面の端部から前記側壁面に略平行に延設す
る立上面と、該立上面の端部から前記側壁面方向に延設
する前記底面に略平行な張出面と、少なくとも前記張出
面に所定間隔で設けたスリットと、からなり、前記底面
と前記立上面と前記張出面とでコ字状導体片を形成する
ものにおいて、前記ドアのコーナー部近傍の前記張出面
の張出寸法は、他の張出面の張出寸法より大きくしたこ
とを特徴とする電子レンジ。2. A heating chamber provided with an opening having a flange for accommodating a heated object, and a door for opening and closing the opening of the heating chamber, the door facing the flange when closed. The sealing surface, a side wall surface extending substantially at a right angle from the end of the sealing surface and extending in a direction away from the flange portion, and extending substantially at a right angle from the end of the side wall surface, and substantially parallel to the sealing surface. A bottom surface, an upright surface extending from an end portion of the bottom surface substantially parallel to the side wall surface, an overhanging surface extending substantially parallel to the bottom surface extending from an end portion of the upright surface, and at least the above A slit formed at a predetermined interval on the overhanging surface, forming a U-shaped conductor piece with the bottom surface, the upright surface, and the overhanging surface, wherein the overhanging surface of the overhanging surface near the corner of the door is extended. The dimensions are larger than the overhanging dimensions of the other overhanging surface. range.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14372893A JP3249240B2 (en) | 1993-06-15 | 1993-06-15 | microwave |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14372893A JP3249240B2 (en) | 1993-06-15 | 1993-06-15 | microwave |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH076873A true JPH076873A (en) | 1995-01-10 |
JP3249240B2 JP3249240B2 (en) | 2002-01-21 |
Family
ID=15345626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14372893A Expired - Lifetime JP3249240B2 (en) | 1993-06-15 | 1993-06-15 | microwave |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3249240B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR980003228A (en) * | 1996-06-27 | 1998-03-30 | 구자홍 | Door structure of microwave oven |
US6577534B2 (en) | 2000-08-22 | 2003-06-10 | Mitsubishi Denki Kabushiki Kaisha | Non-volatile semiconductor memory device having a low defective rate |
US6793734B2 (en) * | 2001-07-26 | 2004-09-21 | F.T.L. Co., Ltd. | Heating furnace and semiconductor wafer-holding jig assembly and process of manufacturing semiconductor devices |
WO2007008038A1 (en) * | 2005-07-12 | 2007-01-18 | Lg Electronics Inc. | Device for preventing leakage of microwave for microwave oven |
-
1993
- 1993-06-15 JP JP14372893A patent/JP3249240B2/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR980003228A (en) * | 1996-06-27 | 1998-03-30 | 구자홍 | Door structure of microwave oven |
US6577534B2 (en) | 2000-08-22 | 2003-06-10 | Mitsubishi Denki Kabushiki Kaisha | Non-volatile semiconductor memory device having a low defective rate |
US6793734B2 (en) * | 2001-07-26 | 2004-09-21 | F.T.L. Co., Ltd. | Heating furnace and semiconductor wafer-holding jig assembly and process of manufacturing semiconductor devices |
WO2007008038A1 (en) * | 2005-07-12 | 2007-01-18 | Lg Electronics Inc. | Device for preventing leakage of microwave for microwave oven |
US8119955B2 (en) | 2005-07-12 | 2012-02-21 | Lg Electronics Inc. | Device for preventing leakage of microwave for microwave oven |
Also Published As
Publication number | Publication date |
---|---|
JP3249240B2 (en) | 2002-01-21 |
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