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公开(公告)号：US09876481B2
公开(公告)日：2018-01-23
申请号：US14426034
申请日：2013-12-06
Inventor： Yoshiharu Omori , Tomotaka Nobue , Hiroshi Kawai , Koji Yoshino , Keijirou Kunimoto
CPC classification number: H03H7/38 , H05B6/6408 , H05B6/6494 , H05B6/662 , H05B6/664 , H05B6/70 , H05B6/702
Abstract: A microwave processing device includes: a periodic structure body which forms a surface-wave transmission line to transmit surface waves of microwaves; an oscillator which generates microwave power; and a transmitting part which transmits the microwave power generated by the oscillator to the periodic structure body, wherein a matching part is provided at a connecting portion between the periodic structure body and the transmitting part, and an impedance of the matching part is set to a value between an impedance of the periodic structure body and an impedance of the transmitting part.
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Patent Agency Ranking
公开(公告)号：US20150136758A1
公开(公告)日：2015-05-21
申请号：US14400493
申请日：2013-04-26
Inventor： Koji Yoshino , Masafumi Sadahira , Daisuke Hosokawa , Tomotaka Nobue , Yoshiharu Omori
Abstract: In order to radiate microwaves from a waveguide tube to a whole area from end to end of a radiation area within a heating chamber, and to heat uniformly an object to be heated without using a driving mechanism, a microwave heating device of the present invention includes openings for radiating the microwave from the waveguide tube to the inside of the heating chamber. The heating chamber includes a radiation area which has a length of approximate twice an in-tube wavelength in a propagation direction of the waveguide tube. Also, the openings are arranged to have an interval of approximate the in-tube wavelength in the propagation direction of the waveguide tube, and are symmetrically arranged to a center line which intersects perpendicularly to the propagation direction in the radiation area.
Abstract translation: 为了将波导管中的微波辐射到加热室内的辐射区域的端部到端部的整个区域，并且在不使用驱动机构的情况下均匀地加热被加热物体，本发明的微波加热装置包括 用于将波导管中的微波辐射到加热室内部的开口。 加热室包括在波导管的传播方向上具有大约两倍于管内波长的长度的辐射区域。 此外，开口被布置成在波导管的传播方向上具有近似管内波长的间隔，并且对准地布置成与辐射区域中的传播方向垂直相交的中心线。
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公开(公告)号：US12177956B2
公开(公告)日：2024-12-24
申请号：US17422824
申请日：2020-02-03
Inventor： Yoshiharu Oomori , Daisuke Hosokawa , Fumitaka Ogasawara , Mikio Fukui , Koji Yoshino , Takashi Uno
Abstract: A microwave treatment device includes a heating chamber for accommodating a heating target, a microwave generator, a feeder, a detector, and a controller. The microwave generator generates a microwave having a frequency in a specified frequency band. The feeder radiates the microwave inside the heating chamber. The detector detects a reflected microwave power reflected from the heating chamber. The controller causes the microwave generator to execute a frequency sweeping in the specified frequency band, and controls the microwave generator according to a temporal change in a frequency characteristic of the reflected microwave power. The temporal change in the frequency characteristic of the reflected microwave power is based on the frequency of the microwave, a level of the reflected microwave power, and a time passed from a start of heating. Thus, it is possible to accurately recognize the progress of cooking while heating the object.
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公开(公告)号：US10912165B2
公开(公告)日：2021-02-02
申请号：US16081038
申请日：2017-03-23
Inventor： Koji Yoshino , Masafumi Sadahira , Masayuki Kubo
Abstract: The present invention has a configuration of controlling a motor so as to stop a radiation antenna when the radiation antenna faces in a direction in which a reflected wave detection amount is minimized and to stop the radiation antenna when the radiation antenna faces in a different direction different from the direction in which the reflected wave detection amount is minimized. According to this configuration, first, the radiation antenna stops when facing in the direction in which the reflected wave detection amount is minimized. This extends a heating time under the most efficient condition, improving a heating efficiency in comparison with when the radiation antenna constantly rotates. Second, the radiation antenna stops when facing in the different directions. This causes uneven heating when the radiation antenna faces in the direction in which the reflected wave detection amount is minimized as well as when the radiation antenna faces in the different directions. As a result, the uneven heating is cancelled out by the uneven heating each other caused at different locations. In this way, it is possible to achieve the even heating.
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公开(公告)号：US20150244055A1
公开(公告)日：2015-08-27
申请号：US14425242
申请日：2014-01-31
Inventor： Koji Yoshino , Tomotaka Nobue , Kenji Yasui , Yoshiharu Omori , Masafumi Sadahira , Masayuki Kubo
Abstract: A directional coupler according to the invention includes an opening in a wall surface of a waveguide, and a coupling line on an outer side of the waveguide. The opening is configured to not cross a tube axis of the waveguide in plan view, and to emit a circularly polarized wave. The coupling line includes first and second transmission lines and output parts disposed at both ends, the first and second transmission lines extending across the opening to cross the tube axis in plan view and being opposed to each other across the center of the opening. The first and second transmission lines are interconnected at a position displaced from an area vertically above the opening.
Abstract translation: 根据本发明的定向耦合器包括在波导的壁表面中的开口和在波导的外侧上的耦合线。 该开口构造成在平面图中不与波导的管轴交叉，并且发射圆偏振波。 耦合线包括布置在两端的第一和第二传输线和输出部分，第一和第二传输线在平面图中横过开口延伸穿过管轴线并跨过开口的中心彼此相对。 第一和第二传输线在与开口垂直上方的区域偏移的位置互连。
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公开(公告)号：US12144092B2
公开(公告)日：2024-11-12
申请号：US17603023
申请日：2020-07-28
Inventor： Kazuki Maeda , Daisuke Hosokawa , Yoshiharu Oomori , Koji Yoshino , Fumitaka Ogasawara , Takashi Uno
Abstract: A microwave treatment device of the present disclosure includes heating chamber (1) for accommodating object (2) to be heated, microwave generator (3), heater (7), power feeder (4), detector (5), and controller (6). Microwave generator (3) generates microwaves. Heater (7) includes a heat source other than the microwaves and heats an inside of heating chamber (1). Power feeder (4) supplies the heating chamber with the microwaves. Detector (5) detects reflected power from power feeder (4). Controller (6) controls heater (7) and microwave generator (3). When heater (7) carries out heating, Controller (6) causes microwave generator (3) to generate the microwaves in heating by heater (7). The microwaves have output power such that the reflected power at a level detectable by detector (5) returns. By present disclosure, by understanding progress of cooking, a heating target can be appropriately cooked.
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