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71. 发明公开

US20230326636A1 MULTILAYER VARISTOR 审中-公开
公开(公告)号：US20230326636A1
公开(公告)日：2023-10-12
申请号：US18182134
申请日：2023-03-10
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Masashi TAKAMURA , Yuto AKIYAMA , Ken YANAI
IPC分类号： H01C7/112 , H01C7/10 , H01C7/102 , H01C1/14
CPC分类号： H01C7/1006 , H01C1/14 , H01C7/102 , H01C7/112
摘要： A multilayer varistor includes a sintered body and a first internal electrode, a second internal electrode, a third internal electrode, and a fourth internal electrode which are disposed in the sintered body. The first internal electrode, the second internal electrode, the third internal electrode, and the fourth internal electrode are arranged in an order of the first internal electrode, the third internal electrode, the fourth internal electrode, and the second internal electrode from a side of a first main face. The third internal electrode and the fourth internal electrode are electrically connected to each other. At least part of the first internal electrode and at least part of the third internal electrode overlap each other when viewed in a third direction. At least part of the second internal electrode and at least part of the fourth internal electrode overlap each other when viewed in the third direction.

72. 发明公开

US20230274863A1 MULTILAYER VARISTOR 审中-公开
公开(公告)号：US20230274863A1
公开(公告)日：2023-08-31
申请号：US18173584
申请日：2023-02-23
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Yuto AKIYAMA , Ken YANAI , Ryosuke USUI , Yuji YAMAGISHI , Masashi TAKAMURA
IPC分类号： H01C7/102 , H01C7/18
CPC分类号： H01C7/102 , H01C7/18
摘要： A multilayer varistor according to the present disclosure includes; a sintered compact; an internal electrode provided inside the sintered compact; a high-resistivity layer arranged to cover the sintered compact at least partially; and an external electrode arranged to cover the high-resistivity layer partially and electrically connected to the internal electrode. The high-resistivity layer includes a thinner region having a smaller thickness than a surrounding region that surrounds the thinner region.

73. 发明申请

US20230081158A1 VARISTOR AND METHOD FOR MANUFACTURING THE SAME 有权
公开(公告)号：US20230081158A1
公开(公告)日：2023-03-16
申请号：US17892711
申请日：2022-08-22
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Keiji KAWAJIRI , Naoki MUTOU , Hironori MOTOMITSU , Michiya WATANABE , Yuji YAMAGISHI
IPC分类号： H01C7/102 , H01C7/112 , H01C7/10 , H01C1/142 , H01C17/065
摘要： A varistor includes a sintered body, an internal electrode, an insulating layer, and an external electrode. The internal electrode is disposed in an interior of the sintered body. The insulating layer covers at least part of the sintered body and includes Zn2SiO4. The external electrode is electrically connected to the internal electrode, covers part of the sintered body and part of the insulating layer, and is in contact with the part of the insulating layer. The insulating layer has a region being in contact with the external electrode, the region having a greater average thickness than a region of the insulating layer which is out of contact with the external electrode.

74. 发明申请

US20220189665A1 METHOD FOR PRODUCING CHIP VARISTOR AND CHIP VARISTOR 有权
公开(公告)号：US20220189665A1
公开(公告)日：2022-06-16
申请号：US17687752
申请日：2022-03-07
申请人： TDK CORPORATION
发明人： Satoshi GOTO , Naoyoshi YOSHIDA , Takeshi YANATA , Takeshi OYANAGI , Daiki SUZUKI , Shin KAGAYA , Masayuki UCHIDA , Yusuke IMAI
IPC分类号： H01C7/10 , H01C7/102 , H01C7/108
摘要： A chip varistor includes an element body exhibiting varistor characteristics, internal electrodes containing a first electrically conductive material, and an intermediate conductor containing a second electrically conductive material. The intermediate conductor is separated from the internal electrodes in a direction in which the internal electrodes oppose each other, and is disposed between the internal electrodes. At least a part of the intermediate conductor overlaps the internal electrodes in the direction in which the internal electrodes oppose each other. The element body includes a low resistance region in which the second electrically conductive material is diffused. The low resistance region is located between the first and second internal electrodes in the direction in which the first and second internal electrodes oppose each other.

75. 发明授权

US11276515B2 Varistor and method for producing same 有权
公开(公告)号：US11276515B2
公开(公告)日：2022-03-15
申请号：US17286909
申请日：2019-12-02
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Yoshiko Higashi , Eiichi Koga
IPC分类号： H01C7/112 , H01C7/102 , H01C17/28
摘要： A varistor includes an effective layer having first and second surfaces opposite to each other, a first ineffective layer stacked on the first surface of the effective layer, a second ineffective layer stacked on the second surface of the effective layer, and an external electrode. The effective layer includes a ceramic layer having a polycrystalline structure including crystal particles exhibiting voltage nonlinear characteristics, and internal electrodes stacked alternately on the ceramic layer. The thickness of the second ineffective layer is equal to or more than 1.1 times a thickness of the first ineffective layer and equal to or smaller than 6 times the thickness of the first ineffective layer. This varistor has a small size and excellent surge resistance.

76. 发明授权

US10892073B2 Heatable motor vehicle operating liquid tank and method of producing the heating device for it 有权
公开(公告)号：US10892073B2
公开(公告)日：2021-01-12
申请号：US14941091
申请日：2015-11-13
申请人： Röchling Automotive SE & Co. KG
发明人： Fabrizio Chini , Ivan De Metri , Luca Marini , Francesca Brunori
IPC分类号： H01C17/02 , F01N3/20 , H01C17/28 , H01C1/142 , H01C7/102
摘要： A motor vehicle operating liquid tank, in particular for storing aqueous urea solution, with a tank shell surrounding a tank volume and with a tank opening extending through the tank shell, a planar heating device in the tank volume is provided with an electrical resistance heating track arranged sandwiched between two plastic films that oppose one another in a planar manner and encase the resistance heating track, the plastic films opposing one another in a planar manner and each have a layer of compatible, thermoplastic plastics at least on their surfaces facing one another which are connected to one another locally at least along a seam track surrounding the electrical resistance heating track, slot areas are provided inside this seam track in which plastic film sections lie opposite one another in an unconnected manner without the intermediate arrangement of a section of a resistance heating track between them.

77. 发明授权

US10790075B2 Varistor for high temperature applications 有权
公开(公告)号：US10790075B2
公开(公告)日：2020-09-29
申请号：US16386564
申请日：2019-04-17
申请人： AVX Corporation
发明人： Palaniappan Ravindranathan , Marianne Berolini
IPC分类号： H01C7/112 , H01C7/102
摘要： The present invention is directed to a varistor comprising a dielectric material comprising a sintered ceramic composed of zinc oxide grains and a grain boundary layer between the zinc oxide grains. The grain boundary layer contains a positive temperature coefficient thermistor material in an amount of less than 10 mol % based on the grain boundary layer.

78. 发明授权

US10672581B2 Type-II overvoltage protection device 审中-公开
公开(公告)号：US10672581B2
公开(公告)日：2020-06-02
申请号：US15379857
申请日：2016-12-15
申请人： PHOENIX CONTACT GMBH & CO. KG
发明人： Rainer Durth
IPC分类号： H01H85/00 , H01C7/12 , H01H85/38 , H01C7/102 , H01T1/14 , H01H85/04 , H01H85/143 , H01H85/20
摘要： The invention relates to a type-II overvoltage protection device having a varistor and a protective element, wherein the protective element has a first contact for connecting to a first potential of a supply network and a second contact that is connected to a first contact of the varistor, wherein the varistor further comprises a second contact for connecting to a second potential of a supply network, wherein the protective element has a fuse element that connects the first contact and the second contact of the protective element, wherein the protective element further comprises a third contact that is connected to the second contact of the varistor and is arranged so as to be near to but electrically insulated from the fuse element, wherein the fuse element has a constriction in the proximity of the neighboring contact, with the constriction being embodied such that the fuse element has an electrically conductive fluxing agent in the proximity of the constriction, with the fluxing agent having a lower fusion point than the fuse element itself, so that pulses corresponding to a load below the type-II rating do not result in a lasting change in the constriction, wherein the constriction, in conjunction with the fluxing agent, is dimensioned such that pulses corresponding to the limit range of the type-II rating result in the fusing of the fluxing agent into the fuse element, and wherein pulses corresponding to a load that is stronger and/or of greater duration than the type-II rating of the varistor result in the immediate disconnection of the fuse element.

79. 发明授权

US10566115B2 Multilayer component and process for producing a multilayer component 有权
公开(公告)号：US10566115B2
公开(公告)日：2020-02-18
申请号：US16355307
申请日：2019-03-15
申请人： EPCOS AG
发明人： Uwe Wozniak , Thomas Feichtinger
IPC分类号： H01C7/112 , C04B35/453 , H01C1/148 , H01C7/10 , H01C7/108 , H01C7/18 , H01C17/065 , H01C17/28 , B32B18/00 , C04B37/02 , H01C17/00 , H01C7/102
摘要： A multilayer component and a mathod for producing a multilayer component are disclosed. In an embodiment a multilayer component includes a ceramic main element and at least one metal structure, wherein the metal structure is cosintered and wherein main element is a varistor ceramic having ≥90 mol % of ZnO, from 0.5 to 5 mol % of Sb2O3, from 0.05 to 2 mol % of Co3O4, Mn2O3, SiO2 and/or Cr2O3, and

80. 发明申请

US20200027630A1 VOLTAGE-DEPENDENT RESISTOR DEVICE FOR PROTECTING A PLURALITY OF CONDUCTORS AGAINST A POWER SURGE 审中-公开
公开(公告)号：US20200027630A1
公开(公告)日：2020-01-23
申请号：US16515337
申请日：2019-07-18
申请人： Hubbell Incorporated
发明人： Stephen Franklin Poterala
IPC分类号： H01C7/102 , H01C7/12
摘要： Devices for protecting a plurality of conductors against a power surge. One device includes a first electrode positioned on a first surface of the device, a second electrode positioned on the first surface of the device, and a floating electrode positioned on a second surface of the device. The first electrode is configured to receive a surge current from a first conductor. The surge current travels through the device from the first electrode to the floating electrode and from the floating electrode to the second electrode

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