公开(公告)号：US20230081158A1

公开(公告)日：2023-03-16

申请号：US17892711

申请日：2022-08-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Keiji KAWAJIRI ,  Naoki MUTOU ,  Hironori MOTOMITSU ,  Michiya WATANABE ,  Yuji YAMAGISHI

IPC: H01C7/102 ,  H01C7/112 ,  H01C7/10 ,  H01C1/142 ,  H01C17/065

Abstract: 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.

公开(公告)号：US20240013955A1

公开(公告)日：2024-01-11

申请号：US18252671

申请日：2021-11-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Keiji KAWAJIRI ,  Naoki MUTOU ,  Hironori MOTOMITSU ,  Michiya WATANABE ,  Yuji YAMAGISHI ,  Yasuhiro NISHIMURA

IPC: H01C7/102 ,  H01C7/112 ,  H01C1/148 ,  H01C17/28 ,  H01C17/30

CPC classification number: H01C7/102 ,  H01C7/112 ,  H01C1/148 ,  H01C17/28 ,  H01C17/30

Abstract: A multilayer varistor includes a sintered body, a first external electrode, a second external electrode, a first internal electrode, a second internal electrode, and a high-resistivity portion. The first internal electrode is provided inside the sintered body and electrically connected to the first external electrode. The second internal electrode is provided inside the sintered body and electrically connected to the second external electrode. The high-resistivity portion includes: a surface high-resistivity portion provided to cover a surface of the sintered body; and an inner high-resistivity portion extended inward from the surface high-resistivity portion inside the sintered body.

公开(公告)号：US20230207163A1

公开(公告)日：2023-06-29

申请号：US18065308

申请日：2022-12-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Michiya WATANABE

IPC: H01C7/10 ,  H01C1/148

CPC classification number: H01C7/10 ,  H01C1/148

Abstract: A sintered body has a first end face and a second end face opposite to each other in a first direction and a first side face and a second side face opposite to each other in a second direction. A first end face electrode is disposed on the first end face except for end portions of the first end face in the second direction. A second end face electrode is disposed on the second end face except for end portions of the second end face in the second direction. A first side face electrode is disposed on the first side face except for end portions of the first side face in the first direction. A second side face electrode is disposed on the second side face except for end portions of the second side face in the first direction.