Invention Grant
- Patent Title: Varistor and manufacturing method thereof
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Application No.: US16955877Application Date: 2019-02-18
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Publication No.: US11037709B2Publication Date: 2021-06-15
- Inventor: Yoshiko Higashi , Eiichi Koga
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: McDermott Will and Emery LLP
- Priority: JPJP2018-057384 20180326
- International Application: PCT/JP2019/005741 WO 20190218
- International Announcement: WO2019/187763 WO 20191003
- Main IPC: H01C7/112
- IPC: H01C7/112 ; H01C7/12 ; H01C17/00 ; C04B35/453 ; H01L27/02
Abstract:
A chromaticity of zinc oxide is measured. The durability of a zinc oxide varistor is evaluated based on the chromaticity. This provides a varistor with a high durability stably.
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