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1. 发明授权

US5177403A Microwave oven magnetron having choking structure and leakage flux compensation means 失效
标题翻译：具有回火结构和漏电补偿方式的微波炉磁铁
公开(公告)号：US5177403A
公开(公告)日：1993-01-05
申请号：US605847
申请日：1990-10-30
申请人： Toshio Kawaguchi , Akira Kousaka
发明人： Toshio Kawaguchi , Akira Kousaka
IPC分类号： H01J23/54
CPC分类号： H01J23/54
摘要： In a microwave oven magnetron, a first metal cylinder and a ring-like permanent magnet are provided on a magnetron body. Second and third metal cylinders are coaxially arranged in the first metal cylinder so that choking grooves for choking second and fourth harmonic waves are formed between the first and second metal cylinders and the second and third metal cylinders. A ferromagnetic cylinder made of iron or iron alloy is arranged around the first metal cylinder. Thus, a magnetic flux supplied from the permanent magnet into a space inside of the second metal cylinder have axial components which are greater than or equal to 400 gauss in over half the inner space.

2. 发明授权

US4287451A Magnetron having improved interconnecting anode vanes 失效
标题翻译：磁控管具有改进的互连阳极叶片
公开(公告)号：US4287451A
公开(公告)日：1981-09-01
申请号：US97958
申请日：1979-11-28
申请人： Tokuju Koinuma , Akira Kousaka
发明人： Tokuju Koinuma , Akira Kousaka
IPC分类号： H01J23/22
CPC分类号： H01J23/22
摘要： A magnetron comprises an anode having an inner cylindrical wall and a plurality of copper vanes extending inwardly from the inner cylindrical wall, each vane having a notch in the top and bottom edges thereof. Each notch has an inner side edge, an outer side edge and a bottom edge. Inner and outer ring straps made of metal having a larger tensile strength than the vanes are placed in the notches. The inner ring strap is fixed to the inner side edge of alternative vanes. The inner side edge also has a slanting edge between the connection of the inner ring strap and the bottom edge to prevent cracking.
摘要翻译：磁控管包括具有内圆柱形壁和从内圆柱形壁向内延伸的多个铜叶片的阳极，每个叶片在其顶部和底部边缘具有凹口。每个凹口具有内侧边缘，外侧边缘和底边缘。具有比叶片更大的拉伸强度的由金属制成的内环带和外环带放置在凹口中。内环带固定在替代叶片的内侧边缘上。内侧边缘还具有在内环带和底部边缘的连接之间的倾斜边缘，以防止开裂。

3. 发明授权

US4395657A Magnetron unit with a magnetic field compensating means 失效
标题翻译：具有磁场补偿装置的磁控管单元
公开(公告)号：US4395657A
公开(公告)日：1983-07-26
申请号：US216677
申请日：1980-12-15
申请人： Isao Tada , Toshio Okamura , Akira Kousaka , Kaichiro Nakai
发明人： Isao Tada , Toshio Okamura , Akira Kousaka , Kaichiro Nakai
IPC分类号： H01J23/10 , H01J25/50
CPC分类号： H01J23/10
摘要： A magnetron unit has a magnetic flux path for magnetic flux supplied from a permanent magnet to the interaction space. A magnetic member is disposed outside the anode cylinder for providing a by-path for the magnetic flux supplied from the permanent magnet. This magnetic member is made of a magnetic compensating alloy whose magnetic permeability decreases with an increase in temperature.
摘要翻译：磁控管单元具有用于从永久磁铁供应到相互作用空间的磁通量的磁通量。磁性构件设置在阳极筒的外侧，用于为从永磁体供给的磁通提供旁路。该磁性部件由磁性补偿合金制成，其磁导率随着温度的升高而降低。

4. 发明授权

US4855645A Magnetron for microwave oven 失效
标题翻译：磁控管微波炉
公开(公告)号：US4855645A
公开(公告)日：1989-08-08
申请号：US105047
申请日：1987-10-06
申请人： Masanori Kinuno , Hisao Saito , Akira Kousaka , Toshio Kawaguchi
发明人： Masanori Kinuno , Hisao Saito , Akira Kousaka , Toshio Kawaguchi
IPC分类号： H01J23/10 , H01J25/587
CPC分类号： H01J25/587 , H01J23/10
摘要： In a magnetron, anode vanes are radially arranged in an anode cylinder and fixed to the inner surface of the anode cylinder. A cathode is arranged along a tube axis in the anode cylinder. Pole pieces of dish like shape are fixed to openings of the anode cylinder and the anode cylinder is hermetically sealed by cylindrical chambers. Permanent magnet rings are arranged around the cylindrical chambers, respectively, and are magnetically coupled by a yoke. Each of the pole pieces has a flange section, a flat inner disk section and a coupling section extending from the flange section to flat inner disk section. The outer diameter of pole piece is larger than 160% the diameter of an envelope defined by inner ends of the anode vanes. A envelope space contacting the inner ends of the anode vanes has a predetermined magnetic field intensity distribution that is produced by a magnetic flux supplied from the pole pieces and has a difference of not more than 15% along the tube axis.
摘要翻译：在磁控管中，阳极叶片径向布置在阳极筒中并固定到阳极筒的内表面。阴极沿着阳极筒中的管轴布置。盘形的杆状件固定到阳极筒的开口，阳极筒被圆柱形的腔室气密地密封。永磁体环分别围绕圆柱形室布置，并通过磁轭磁耦合。每个极片具有凸缘部分，平坦的内部盘部分和从凸缘部分延伸到平坦的内部盘形部分的联接部分。极片的外径大于由阳极叶片的内端限定的外壳的直径的160％。与阳极叶片的内端接触的包络空间具有由从极片供给的磁通产生的预定的磁场强度分布，并且沿着管轴具有不大于15％的差。

5. 发明授权

US4705989A Magnetron with a ceramic stem having a cathode support structure 失效
标题翻译：具有具有阴极支撑结构的陶瓷杆的磁控管
公开(公告)号：US4705989A
公开(公告)日：1987-11-10
申请号：US812858
申请日：1985-12-23
申请人： Kousuke Takada , Akira Kousaka
发明人： Kousuke Takada , Akira Kousaka
IPC分类号： H01J23/04 , H01J23/05 , H01J23/15 , H01J25/50
CPC分类号： H01J23/15 , H01J23/05
摘要： A magnetron comprises a ceramic stem having a cathode support structure. Sealing metal plates are sealed hermetically to the cathode side of the ceramic stem, closing off hermetically the holes running through the stem for the outer connecting leads. The outer connecting leads are connected electrically to the sealing metal plates. The cathode, which is disposed in the center of the anode, is supported by a pair of cathode support rods. The cathode support rods are fixed to the sealing metal plates. In another embodiment, the end-face of the ceramic stem is formed such that the part of the surface of the stem to which the cylindrical metal container, which constitutes part of the envelope of the stem, is sealed by brazing, and those parts of the surface to which the sealing metal plates are sealed by brazing, are positioned substantially on the same plane.
摘要翻译：磁控管包括具有阴极支撑结构的陶瓷杆。密封金属板密封地密封到陶瓷杆的阴极侧，密封地密封穿过杆的孔，用于外部连接引线。外部连接引线电连接到密封金属板。设置在阳极中心的阴极由一对阴极支撑杆支撑。阴极支撑杆固定在密封金属板上。在另一个实施例中，陶瓷杆的端面形成为使得构成杆的外壳的一部分的圆柱形金属容器的杆的表面的部分被钎焊密封，并且那些部分密封金属板通过钎焊密封的表面基本上位于同一平面上。

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