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Patent Agency Ranking
公开(公告)号：US20160353529A1
公开(公告)日：2016-12-01
申请号：US15117688
申请日：2015-03-11
Inventor： YOSHIHARU OMORI , KOJI YOSHINO , MASAHARU TSUJIMOTO , TAKAHIDE YAMAGUCHI , JUNJI HIRATA , TAKAYUKI AKASHI , MASAFUMI SADAHIRA , MASAYUKI KUBO
CPC classification number: H05B6/708 , H05B6/6411 , H05B6/704
Abstract: Microwave oven (20) includes waveguide (3) having an E-bend structure, and multiple openings (4a, 4b). Waveguide (3) has first section (3a) for propagating a microwave from magnetron (2) toward heating chamber (1), and second section (3b) of which wide plane abuts on the outer wall of heating chamber (1). Multiple openings (4a, 4b) are disposed on a lateral face of heating chamber (1). Openings (4a, 4b) allow waveguide (3) to communicate with heating chamber (1), and include at least one circularly-polarized-wave opening (4a) for generating a circularly polarized wave. A cross section of first section (3a) orthogonally intersecting tube axis (7a) of first section (3a) is projected virtually along tube axis (7a) of first section (3a) onto a lateral face of heating chamber (1), and circularly-polarized-wave opening (4a) is formed such that its center is located outside the resultant projected region defined by this projection. The foregoing structure allows this compact size waveguide to generate a circularly polarized wave more positively.
Abstract translation: 微波炉（20）包括具有E形弯曲结构的波导（3）和多个开口（4a，4b）。 波导（3）具有用于将来自磁控管（2）的微波传播到加热室（1）的第一部分（3a），并且第二部分（3b）的宽平面邻接在加热室（1）的外壁上。 多个开口（4a，4b）设置在加热室（1）的侧面上。 开口（4a，4b）允许波导（3）与加热室（1）连通，并且包括用于产生圆偏振波的至少一个圆极化波开口（4a）。 与第一部分（3a）正交相交的管轴线（7a）的第一部分（3a）的横截面实质上沿着第一部分（3a）的管轴线（7a）投射到加热室（1）的侧面上，并且循环 形成极化波开口（4a），使得其中心位于由该突起限定的所产生的投影区域的外侧。 上述结构允许该紧凑尺寸的波导更积极地产生圆偏振波。
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公开(公告)号：US20190090318A1
公开(公告)日：2019-03-21
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 motor (15) so as to stop radiation antenna (5) when radiation antenna (5) faces in a direction in which a reflected wave detection amount is minimized and to stop radiation antenna (5) when radiation antenna (5) faces in a different direction different from the direction in which the reflected wave detection amount is minimized. According to this configuration, first, radiation antenna (5) 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 radiation antenna (5) constantly rotates. Second, radiation antenna (5) stops when facing in the different directions. This causes uneven heating when radiation antenna (5) faces in the direction in which the reflected wave detection amount is minimized as well as when radiation antenna (5) 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：US20240172337A1
公开(公告)日：2024-05-23
申请号：US18549914
申请日：2022-03-31
Inventor： MASAYUKI KUBO , YOSHIHARU OOMORI , KAZUKI MAEDA
Abstract: A high-frequency heating apparatus includes a table, a high-frequency power generator, a transmission body, a radiation part, and an elevating drive mechanism. A heating target is to be placed on the table. The high-frequency power generator generates high-frequency power. The transmission body propagates the high-frequency power as surface waves. The radiation part is disposed on the transmission body and radiates the surface waves as high-frequency power. The elevating drive mechanism sets a distance between a top surface of the table or the heating target and the transmission body to not less than a predetermined distance so as to heat the heating target entirely by the high-frequency power. The elevating drive mechanism sets a distance between the top surface of the table or the heating target and the transmission body to not greater than the predetermined distance so as to partially brown the heating target by the surface waves.
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公开(公告)号：US20190090317A1
公开(公告)日：2019-03-21
申请号：US16081039
申请日：2017-03-23
Inventor： MASAFUMI SADAHIRA , KOJI YOSHINO , MASAYUKI KUBO
Abstract: The present invention includes a directional coupler that detects at least part of a reflected wave inside a waveguide. When an object to be heated is absent, a reflected wave is strong, because there is nothing to absorb a microwave. When the object is present, the reflected wave is weak, because the microwave is absorbed by the object. As a quantity of the object becomes greater, a larger amount of microwave is absorbed by the object, and thus the reflected wave is weakened. It is thus possible to determine the quantity of the object from a reflected wave detection amount detected by the directional coupler without using a detector that detects a load.
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公开(公告)号：US20170171922A1
公开(公告)日：2017-06-15
申请号：US15300719
申请日：2015-07-09
Inventor： MASAFUMI SADAHIRA , KOJI YOSHINO , MASAYUKI KUBO , YOSHIHARU OMORI
Abstract: A rotating antenna (105a) includes: a ceiling surface (109) and a side-wall surface (110) that constitute a waveguide structure (108); and a horn (113) that radiates a microwave into a heating chamber. The rotating antenna (105a) further includes a flange (112) that is formed on a periphery of the side-wall surface (110) so as to face a bottom surface (111), which is an inner wall surface of the heating chamber, and so as to surround the side-wall surface (110). The flange (112) has choke sections (117) that reduce a leakage of the microwave. This configuration can generate a relatively low impedance region so as to surround the side-wall surface (110), thereby enhancing a leakage reducing performance of the rotating antenna (105a) and increasing directivity of the microwave radiated from the rotating antenna (105a). Consequently, if a part of substances to be heated arranged on a plate is a food that a user does not want to warm, the rotating antenna (105a) selectively heats an area in which a food that the user wants to warm is present but hardly heats the food that the user does not want to warm.
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