JPH03196611A - High-frequency heater - Google Patents
High-frequency heaterInfo
- Publication number
- JPH03196611A JPH03196611A JP1337140A JP33714089A JPH03196611A JP H03196611 A JPH03196611 A JP H03196611A JP 1337140 A JP1337140 A JP 1337140A JP 33714089 A JP33714089 A JP 33714089A JP H03196611 A JPH03196611 A JP H03196611A
- Authority
- JP
- Japan
- Prior art keywords
- heating
- dielectric
- microwave
- chamber
- container
- 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
- 238000010438 heat treatment Methods 0.000 claims abstract description 127
- 230000006698 induction Effects 0.000 claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 19
- 239000003989 dielectric material Substances 0.000 claims abstract description 18
- 239000000835 fiber Substances 0.000 claims abstract description 13
- 239000004020 conductor Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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
- H05B6/647—Aspects related to microwave heating combined with other heating techniques
- H05B6/6488—Aspects related to microwave heating combined with other heating techniques combined with induction heating
-
- 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
-
- 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
- H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
- H05B2213/05—Heating plates with pan detection means
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Constitution Of High-Frequency Heating (AREA)
- Electric Stoves And Ranges (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、マイクロ波による誘電加熱と、高周波磁界に
よる誘導加熱の二つの機能を併せ持った高周波加熱装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a high-frequency heating device that has two functions: dielectric heating using microwaves and induction heating using high-frequency magnetic fields.
従来の技術
以下、従来の誘電加熱と誘導加熱の二つの機能を持った
高周波加熱装置について図面を参照して説明する。2. Description of the Related Art Hereinafter, a conventional high-frequency heating device having two functions of dielectric heating and induction heating will be described with reference to the drawings.
第３図は、従来の高周波加熱装置の外観を示す図である
。同図において、マグネトロンｌで発生されたマイクロ
波は、導波管４で加熱室内６に導かれ、加熱室内６に収
納された食品などの被加熱物を入れた容器２に照射され
誘電加熱を行う。加熱室外部の上面には、誘電加熱を行
うだめの加熱コイル５が設けられている。誘導加熱を行
う場合には、食品等の被加熱物を、鉄やステンレスなど
の金属導体から成る容器２に入れ、加熱コイル５上に載
置する。加熱コイル５でつくられた高周波磁界は、前記
した金属導体から成る容器２に渦電流を流し、渦電流損
を発生させるので容器２が発熱し被加熱物を加熱できる
。FIG. 3 is a diagram showing the appearance of a conventional high-frequency heating device. In the figure, microwaves generated by a magnetron 1 are guided into a heating chamber 6 through a waveguide 4, and are irradiated onto a container 2 containing an object to be heated, such as food, stored in the heating chamber 6, causing dielectric heating. conduct. A heating coil 5 for dielectric heating is provided on the upper surface outside the heating chamber. When performing induction heating, an object to be heated such as food is placed in a container 2 made of a metal conductor such as iron or stainless steel, and placed on a heating coil 5. The high-frequency magnetic field created by the heating coil 5 causes an eddy current to flow through the container 2 made of the metal conductor described above and generates an eddy current loss, so that the container 2 generates heat and can heat the object to be heated.
誘電加熱を行う場合は、食品等の被加熱物はガラスや樹
脂などの耐熱性のある誘電体の容器に入れられて加熱室
に収納される。ステンレスや鉄等の金属容器を用いた場
合、マイクロ波は反射されてしまうので容器内の被加熱
物に吸収されず、加熱ができない。When dielectric heating is performed, the object to be heated, such as food, is placed in a heat-resistant dielectric container such as glass or resin and stored in a heating chamber. When a metal container such as stainless steel or iron is used, the microwave is reflected and is not absorbed by the object to be heated inside the container, making it impossible to heat the object.
発明が解決しようとする課題
従来の高周波加熱装置では、マイクロ波を利用した誘電
加熱は、加熱室の内部で行われ、高周波磁界を利用した
誘導加熱は、加熱室外部で行われていた。このため、被
加熱物を入れた容器の種類、即ち金属材料でできている
か、誘電材料でできているかによって、誘電加熱を行う
か誘導加熱を行うかを選択し、容器を誘電加熱を行う加
熱室に収納するか、あるいは加熱室外部の誘導加熱用の
加熱コイル上に載置しなければならない手間があった。Problems to be Solved by the Invention In conventional high-frequency heating devices, dielectric heating using microwaves was performed inside the heating chamber, and induction heating using high-frequency magnetic fields was performed outside the heating chamber. Therefore, depending on the type of container containing the object to be heated, that is, whether it is made of metal or dielectric material, it is necessary to select whether to perform dielectric heating or induction heating. It was a hassle to either store it in a chamber or place it on a heating coil for induction heating outside the heating chamber.
誘導加熱用の加熱コイルを、加熱室内部に設ければ前記
した手間は省けるが、加熱コイルは、電線の表皮効果を
低減するため、何本かの絶縁皮膜電線をより合わせて構
成しているので、加熱室内部に加熱コイルを設けると、
誘電加熱を行う場合に発生するマイクロ波のため加熱コ
イルの絶縁皮膜が焼けてしまい、絶縁破壊を起こすとい
う課題があった。そこで加熱コイルをマイクロ波を遮蔽
する遮蔽板で覆うということが考えられたが、マイクロ
波を遮蔽するには銅やステンレス等の金属板を用いる必
要があり、このような金属板で加熱コイルを覆うと、誘
導加熱を行う際に加熱コイルが発生する高周波磁界によ
り、前記金属板に渦電流損を発生させて加熱してしまい
、高周波磁界がもつエネルギーを消費してしまうので被
加熱物を入れた容器が加熱されな（なるという課題があ
った。The above-mentioned trouble can be avoided by installing a heating coil for induction heating inside the heating chamber, but in order to reduce the skin effect of the wires, the heating coil is constructed by twisting several insulated wires together. Therefore, if a heating coil is installed inside the heating chamber,
When performing dielectric heating, the microwaves generated burn the insulation coating of the heating coil, causing dielectric breakdown. Therefore, one idea was to cover the heating coil with a shielding plate that shields the microwaves, but it is necessary to use a metal plate such as copper or stainless steel to shield the microwaves. If it is covered, the high-frequency magnetic field generated by the heating coil during induction heating will generate eddy current loss in the metal plate and heat it, consuming the energy of the high-frequency magnetic field. There was a problem that the container was not heated.
ｔｉｉｎを解決するための手段
食品を収納する加熱室と、誘電加熱用のマイクロ波を発
生するマグネトロンと、前記マイクロ波を前記加熱室に
導く導波管と、誘導加熱を行う加熱コイルとから成り前
記加熱コイルを、前記加熱室内部に設け、誘電体材料に
金属等の導電材料で形成された繊維を混合したマイクロ
波遮蔽板で加熱コイルを覆う構成とする。Means for solving the problem of tiin The food is made up of a heating chamber that stores the food, a magnetron that generates microwaves for dielectric heating, a waveguide that guides the microwaves to the heating chamber, and a heating coil that performs induction heating. The heating coil is provided inside the heating chamber, and the heating coil is covered with a microwave shielding plate made of a dielectric material mixed with fibers made of a conductive material such as metal.
前記加熱室内に収納された被加熱物を入れた容器が、金
属などの良導体材料でできているか、またはガラスや陶
器などの誘電体材料でできているかを判断する手段を設
け、この手段によりマグネトロンを駆動させる電源また
は、誘導加熱を行うための電源のいずれかを動作させる
構成とする。Means for determining whether the container containing the object to be heated stored in the heating chamber is made of a good conductor material such as metal or a dielectric material such as glass or ceramics is provided, and by this means, the magnetron is heated. The structure is configured to operate either a power source for driving a power source or a power source for performing induction heating.
作用 本発明によれば、以下に示す作用を有する。action According to the present invention, the following effects are achieved.
第一の作用は、食品を収納する加熱室と、誘電加熱用の
マイクロ波を発生するマグネトロンと、前記マイクロ波
を前記加熱室に導く導波管と、誘導加熱を行う加熱コイ
ルとから成り前記加熱コイルを、前記加熱室内部に設け
、誘電体材料に金属等の導電材料で形成された繊維を混
合したマイクロ波遮Ｍ仮で加熱コイルを覆う構成とする
ことにより、誘電加熱時に発生するマイクロ波を誘電体
材料に金属繊維を混合したマイクロ波遮蔽板で加熱コイ
ルを保護でき、加熱室内で誘電加熱と誘導加熱を行うこ
とができる。The first function consists of a heating chamber that stores food, a magnetron that generates microwaves for dielectric heating, a waveguide that guides the microwaves to the heating chamber, and a heating coil that performs induction heating. A heating coil is provided inside the heating chamber, and the heating coil is covered with a microwave shielding material made of a dielectric material mixed with fibers made of a conductive material such as metal, thereby eliminating the micro-waves generated during dielectric heating. The heating coil can be protected by a microwave shielding plate made of a dielectric material mixed with metal fibers, and dielectric heating and induction heating can be performed within the heating chamber.
第二の作用は、加熱室内に収納された被加熱物を入れた
容器が、金属などの良導体材料でできているか、または
ガラスや陶器などの誘電体材料でできているかを判断す
る手段を設けることにより、従来、人が行ってきた被加
熱物を入れた容器が金属製であるか誘電体材料でできた
容器であるかを判断し、誘電加熱を行うか誘導加熱を行
うかを選択し、高周波加熱装置を操作する手間を省くこ
とができる。The second function is to provide a means for determining whether the container containing the object to be heated stored in the heating chamber is made of a good conductor material such as metal, or a dielectric material such as glass or ceramics. This has traditionally been done by humans, determining whether the container containing the object to be heated is made of metal or dielectric material, and selecting whether to perform dielectric heating or induction heating. , the trouble of operating the high-frequency heating device can be saved.
実施例 以下、本発明の一実施例について説明する。Example An embodiment of the present invention will be described below.
第１図は、本発明の第一の実施例である高周波加熱装置
の構成を示す外観図である。同図において高周波加熱装
置は、マイクロ波を発生させるマグネトロン１と、被加
熱物を入れた容器２を収納する加熱室３とマイクロ波を
加熱室３に導くための導波管４と、加熱室３内に設けら
れた誘導加熱用の高周波磁界を発生させる加熱コイル５
と、同じく加熱室３内に設けられ加熱コイル５を覆うマ
イクロ波遮蔽板６と、誘導加熱と誘電加熱を行うための
電源７から構成されている。FIG. 1 is an external view showing the configuration of a high-frequency heating device according to a first embodiment of the present invention. In the figure, the high-frequency heating device includes a magnetron 1 that generates microwaves, a heating chamber 3 that houses a container 2 containing an object to be heated, a waveguide 4 that guides the microwaves to the heating chamber 3, and a heating chamber A heating coil 5 that generates a high-frequency magnetic field for induction heating is provided in 3.
, a microwave shielding plate 6 similarly provided in the heating chamber 3 and covering the heating coil 5, and a power source 7 for performing induction heating and dielectric heating.
マグネトロン７で発生されたマイクロ波８は、導波管を
通して加熱室３内に照射されるが、誘電体材料に金属繊
維を混合したマイクロ波遮蔽板には反射されるため、マ
イクロ波は加熱コイル５まで到達することができない、
このため加熱コイル５がマイクロ波８によって加熱され
ることはなく、加熱コイル５を形成する絶縁皮膜電線を
劣化させることがなくなる。Microwaves 8 generated by the magnetron 7 are irradiated into the heating chamber 3 through the waveguide, but are reflected by the microwave shielding plate made of a dielectric material mixed with metal fibers, so the microwaves are transmitted to the heating coil. unable to reach 5,
Therefore, the heating coil 5 is not heated by the microwave 8, and the insulated coated electric wire forming the heating coil 5 is not deteriorated.
マイクロ波遮蔽板には髪の毛程度の太さのステンレスの
繊維を樹脂に混合している。このためマイクロ波遮蔽板
のマイクロ波の透過率はおよそ０．０５％程度と低く、
反射率は９５．８％程度と高いため、大半のマイクロ波
は反射されてしまい、マイクロ波遮蔽板自体がマイクロ
波で加熱されてしまうことはなく、また極わずかなマイ
クロ波しか透過しないため誘導加熱用の加熱コイルをマ
イクロ波から遮蔽できる。The microwave shielding plate is made of stainless steel fibers about the thickness of a human hair mixed with resin. For this reason, the microwave transmittance of the microwave shielding plate is as low as approximately 0.05%.
Since the reflectance is as high as 95.8%, most of the microwaves are reflected, and the microwave shielding plate itself is not heated by the microwaves, and only a small amount of microwaves are transmitted, so it is difficult to induce. The heating coil for heating can be shielded from microwaves.
このステンレス繊維は、太さが数ミクロン、長さが３０
０マイクロメ一タ程度のもので、ＡＢＳ樹脂などの誘電
材料との混合比は、１０％程度にしであるので誘導加熱
用の加熱コイル５がつくる高周波磁界がこのマイクロ波
遮蔽板６と鎖交しても、マイクロ波遮蔽板６に渦電流は
発生せず誘導加熱はされない。This stainless steel fiber has a thickness of several microns and a length of 30 mm.
Since the mixing ratio with the dielectric material such as ABS resin is about 10%, the high frequency magnetic field generated by the heating coil 5 for induction heating interlinks with this microwave shielding plate 6. However, no eddy current is generated in the microwave shielding plate 6 and no induction heating occurs.
天ぷらなどの日周理を行う場合は油の温度が１８０°Ｃ
位になるので、被加熱物を入れる容器を載置する誘電体
材料に金属の繊維を混合したマイクロ波遮蔽板６も耐熱
性のある誘電体材料を使う必要がある。そこでセラミッ
ク等の高耐熱の誘電体材料に前述したステンレスの繊維
を混合してもよい。When doing diurnal cooking such as tempura, the temperature of the oil should be 180°C.
Therefore, it is necessary to use a heat-resistant dielectric material for the microwave shielding plate 6, which is made by mixing metal fibers with the dielectric material on which the container containing the object to be heated is placed. Therefore, the above-mentioned stainless steel fibers may be mixed with a highly heat-resistant dielectric material such as ceramic.
さらに金属の繊維の材料としては銅、アルミ、金等を用
いてもよい。Furthermore, copper, aluminum, gold, etc. may be used as the material for the metal fibers.
第２図に本発明の第二の実施例図を示す、同図において
マイクロ波遮蔽板６の上面に二つ以上の電極９が設けら
れている。二つ以上の電極間には、容器検出手段１０か
ら微弱な電圧が印加されている。FIG. 2 shows a second embodiment of the present invention, in which two or more electrodes 9 are provided on the upper surface of a microwave shielding plate 6. A weak voltage is applied from the container detection means 10 between the two or more electrodes.
この電極９上に被加熱物を入れた容器２が置かれた場合
、例えばステンレスや銅、鉄などの金属材料でできた容
器であれば、この容器を介して電極９間が導通するので
電流が流れ、この電流を容器検出手段１０で検出するよ
うになっている。容器検出手段１０は、電極９が導通し
たことを検出すると誘導加熱用型＃１１を駆動させるよ
うに動作し、容器２が電極ｌｌ上に置かれて電極１１間
の導通が検知されない場合は誘電加熱を行うため誘電加
熱摺電ａ１２を動作させるようになっている。When the container 2 containing the object to be heated is placed on the electrode 9, for example, if the container is made of a metal material such as stainless steel, copper, or iron, conduction will occur between the electrodes 9 through the container, so the current will flow. flows, and this current is detected by the container detection means 10. When the container detection means 10 detects that the electrode 9 is electrically conductive, it operates to drive the induction heating mold #11, and when the container 2 is placed on the electrode 11 and no electrical continuity is detected between the electrodes 11, the inductive heating mold #11 is activated. In order to perform heating, a dielectric heating slider a12 is operated.
発明の効果 本発明によれば以下の効果を得られる。Effect of the invention According to the present invention, the following effects can be obtained.
食品等の被加熱物を入れた容器を収納する加熱室と、こ
の加熱室にマイクロ波を照射し被加熱物誘電加熱する手
段と、前記加熱室に高周波磁界を発生する誘導加熱用の
加熱コイルを設け、前記加熱コイルを誘電体材料に金属
の繊維を混合したマイクロ波遮蔽板で覆う構成とするこ
とにより、被加熱物を入れる容器の材質にかかわらず加
熱することが可能となる。すなわち、被加熱物が金属製
の容器に入れられた場合は誘導加熱し、ガラスや陶器な
どの誘電材料でできた容器に入れられた場合は誘電加熱
を行う。A heating chamber for storing a container containing an object to be heated such as food, a means for dielectrically heating the object by irradiating the heating chamber with microwaves, and a heating coil for induction heating that generates a high-frequency magnetic field in the heating chamber. By providing a heating coil and covering the heating coil with a microwave shielding plate made of a dielectric material mixed with metal fibers, it becomes possible to heat the object regardless of the material of the container in which the object is placed. That is, when the object to be heated is placed in a metal container, induction heating is performed, and when the object is placed in a container made of dielectric material such as glass or ceramics, dielectric heating is performed.
また、加熱室内に入れられた容器の材質を判断する手段
を設けることにより、容器の材質に応じて自動的に誘電
加熱か誘導加熱を行えるので、容器の材質にかかわらず
加熱ができる万能加熱器を実現できる。In addition, by providing a means to determine the material of the container placed in the heating chamber, it is possible to automatically perform dielectric heating or induction heating depending on the material of the container, so it is a versatile heater that can heat regardless of the material of the container. can be realized.
第１図、第２図は本発明の一実施例の高周波加熱装置の
構成を示す構成図、第３図は従来の高周波加熱装置の構
成図である。
１・・・・・・マグネトロン、２・旧・・容器、３・旧
・・加熱室、４・・・・・・導波管、５・・・・・・加
熱コイル、６・・・・・・マイクロ波遮蔽板、７・旧・
・電源、８・・・・・・マイクロ波、９・・・・・・電
極、１０・・・・・・負荷検出手段、１１・・・・・・
誘電加熱用の電源０．１２・・・・・・誘導加熱用の電
源。1 and 2 are block diagrams showing the structure of a high-frequency heating device according to an embodiment of the present invention, and FIG. 3 is a block diagram of a conventional high-frequency heating device. 1... Magnetron, 2... Old container, 3... Old heating chamber, 4... Waveguide, 5... Heating coil, 6...・Microwave shielding plate, 7・old・
・Power supply, 8...Microwave, 9...Electrode, 10...Load detection means, 11...
Power supply for dielectric heating 0.12...Power supply for induction heating.
Claims (2)
と、誘電加熱用のマイクロ波を発生させるマグネトロン
と前記マグネトロンを動作させるマグネトロン用電源と
、前記マイクロ波を前記加熱室に導く導波管と、前記加
熱室内に設けられた誘導加熱用の高周波磁界を発生させ
る加熱コイルと誘導加熱用電源と、誘電体材料に金属等
の導電材料で形成された繊維を混合したマイクロ波遮蔽
板からなり、前記加熱コイルを前記マイクロ波遮蔽板で
覆う構成とした高周波加熱装置。(1) A heating chamber that stores a container containing an object to be heated such as food, a magnetron that generates microwaves for dielectric heating, a power source for the magnetron that operates the magnetron, and guides the microwave to the heating chamber. A waveguide, a heating coil for generating a high-frequency magnetic field for induction heating provided in the heating chamber, a power source for induction heating, and a microwave shield made of a dielectric material mixed with fibers made of a conductive material such as metal. A high-frequency heating device comprising a plate and having a configuration in which the heating coil is covered with the microwave shielding plate.
できているか、あるいは誘電材料からできているかを検
出する手段を備え、前記検出手段によりマグネトロン用
電源あるいは誘導加熱用電源のいずれかを動作させる構
成とした特許請求の範囲第１項記載の高周波加熱装置。(2) A means for detecting whether the container containing the object to be heated is made of a conductive material such as metal or a dielectric material is provided, and the detecting means is used to detect whether a power source for a magnetron or a power source for induction heating is used. The high-frequency heating device according to claim 1, which is configured to operate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1337140A JP2646775B2 (en) | 1989-12-26 | 1989-12-26 | High frequency heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1337140A JP2646775B2 (en) | 1989-12-26 | 1989-12-26 | High frequency heating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03196611A true JPH03196611A (en) | 1991-08-28 |
| JP2646775B2 JP2646775B2 (en) | 1997-08-27 |
Family
ID=18305820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1337140A Expired - Fee Related JP2646775B2 (en) | 1989-12-26 | 1989-12-26 | High frequency heating equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2646775B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999004638A2 (en) * | 1997-07-26 | 1999-02-04 | Pizza Hut, Inc. | Pizza pan shielding systems and methods |
| US6147336A (en) * | 1998-02-26 | 2000-11-14 | Japanese Research And Development Association For Application Of Electronic Technology In Food Industry | Induction heaters for heating food, fluids or the like |
| JP2013185781A (en) * | 2012-03-09 | 2013-09-19 | Panasonic Corp | High frequency heating device |
| JP2016041425A (en) * | 2011-06-30 | 2016-03-31 | シーイーエム・コーポレーション | Apparatus for performing microwave assisted reaction |
| EP4142432A4 (en) * | 2020-04-21 | 2024-05-01 | LG Electronics, Inc. | Cooker |
-
1989
- 1989-12-26 JP JP1337140A patent/JP2646775B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999004638A2 (en) * | 1997-07-26 | 1999-02-04 | Pizza Hut, Inc. | Pizza pan shielding systems and methods |
| WO1999004638A3 (en) * | 1997-07-26 | 1999-04-08 | Pizza Hut Inc | Pizza pan shielding systems and methods |
| US6054697A (en) * | 1997-07-26 | 2000-04-25 | Pizza Hut, Inc. | Pizza pan shielding systems and methods |
| US6147336A (en) * | 1998-02-26 | 2000-11-14 | Japanese Research And Development Association For Application Of Electronic Technology In Food Industry | Induction heaters for heating food, fluids or the like |
| JP2016041425A (en) * | 2011-06-30 | 2016-03-31 | シーイーエム・コーポレーション | Apparatus for performing microwave assisted reaction |
| US9769885B2 (en) | 2011-06-30 | 2017-09-19 | Cem Corporation | Instrument for performing microwave-assisted reactions |
| JP2013185781A (en) * | 2012-03-09 | 2013-09-19 | Panasonic Corp | High frequency heating device |
| EP4142432A4 (en) * | 2020-04-21 | 2024-05-01 | LG Electronics, Inc. | Cooker |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2646775B2 (en) | 1997-08-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |