Seagate Technology LLC v. Nhk Spring Co., Ltd.

FOR PUBLICATION

UNITED STATES COURT OF APPEALS

FOR THE NINTH CIRCUIT

SEAGATE TECHNOLOGY LLC; No. 24-4470

SEAGATE TECHNOLOGY

D.C. No. (THAILAND) LTD.; SEAGATE 3:19-md-02918-

SINGAPORE INTERNATIONAL

MMC

HEADQUARTERS PTE, LTD;

SEAGATE TECHNOLOGY

INTERNATIONAL, OPINION

Plaintiffs - Appellants,

v.

NHK SPRING CO., LTD.; NHK

INTERNATIONAL

CORPORATION; NHK SPRING

(THAILAND) CO., LTD.; NAT

PERIPHERAL (DONG GUAN) CO.,

LTD.; NAT PERIPHERAL (H.K.)

CO., LTD.,

Defendants - Appellees.

Appeal from the United States District Court for the Northern District of California Maxine M. Chesney, District Judge, Presiding Argued and Submitted June 6, 2025 San Francisco, California

Filed January 8, 2026

Before: Consuelo M. Callahan and Kenneth K. Lee, Circuit Judges, and Scott H. Rash, District Judge. *

Opinion by Judge Lee

SUMMARY **

Antitrust

The panel vacated the district court’s partial summary judgment in favor of defendants NHK Spring Co., Ltd., et al. and remanded for further proceedings in an antitrust action brought under the Sherman Act by Seagate Technology LLC, an American company, and two Seagate foreign…