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Asahi Kasei files patent infringement lawsuit against W-SCOPE Corporation, etc.

February 4, 2020
Asahi Kasei Corp.

On January 29, 2020, Asahi Kasei Corporation (Head Office: Chiyoda-ku, Tokyo; President: Hideki Kobori) filed a patent infringement lawsuit with the Seoul Central District Court against W-SCOPE Corporation and its subsidiary, W-SCOPE KOREA CO., LTD. (hereinafter, “W-SCOPE Corporation, etc.”), which manufacture and sell separators for lithium ion secondary battery, as joint defendants.

This lawsuit claims infringement of Asahi Kasei Corporation’s Korean patent (Korean Patent No. 10-0977345) relating to separator for lithium ion secondary battery, and seeks an injunction restraining W-SCOPE Corporation, etc. from manufacturing and selling their battery separator products in Korea, and compensation for damages.