Access Optical Networks, Inc. v. Seagate Technology LLC
- Virginia Demarchi
- 5:24-cv-03745
- U.S. District Court · Northern District of California
- 9
Access Optical Networks v. Seagate Technology: Judge DeMarchi granted in part and denied in part Seagate’s discovery motion, requiring clearer disclosures but refusing to strike trade secrets.
Access Optical Networks must further clarify six alleged trade secrets, while Seagate cannot have the disputed trade secrets struck as a discovery sanction. The newly added alleged trade secrets will not expand discovery through this disclosure.
What happened
In Access Optical Networks, Inc. v. Seagate Technology LLC, Seagate challenged Access Optical Networks’ updated descriptions of alleged trade secrets involving holographic data storage. Seagate argued that some descriptions remained unclear and that Access Optical Networks improperly added more than 50 alleged trade secrets after the disclosure deadline.
The court found that Access Optical Networks had not adequately clarified six alleged trade secrets, identified as TS 2, 3, 9, 12, 16, and 17. It ordered Access Optical Networks to amend those disclosures promptly. The court found that Access Optical Networks had clarified TS 11, but declined to let the newly added trade secrets expand discovery.
Judge DeMarchi granted in part and denied in part Seagate’s motion. She denied Seagate’s request to strike the disputed trade secrets as a discovery sanction, while requiring further amendments and limiting the new alleged trade secrets’ use as a guide for discovery.
The detailed version
- Access Optical Networks, Inc. v. Seagate Technology LLC · No. 5:24-cv-03745
- Virginia Demarchi
- Sept. 22, 2025
Background
Access Optical Networks, Inc. (AON) alleges that it owns trade secrets concerning holographic data storage technology. It alleges that it shared trade secrets and confidential information with Seagate Technology LLC between 2012 and 2015 under nondisclosure agreements, and that Seagate used the information to accelerate development of its own technology. AON asserts claims under the California Uniform Trade Secrets Act, the federal Defend Trade Secrets Act, and for breach of contract.
The parties had agreed that discovery on these claims could not begin until AON identified its trade secrets in sufficient detail under California Code of Civil Procedure section 2019.210. AON initially identified 22 alleged trade secrets. In a May 27, 2025 order, the court granted in part and denied in part Seagate’s earlier motion to compel, ordering AON to amend TS 2, 3, 9, 11, 12, 16, and 17 and allowing amendments to the other alleged trade secrets to address Seagate’s concerns.
AON later served a third amended disclosure identifying 76 alleged trade secrets. Seagate filed this second motion to compel, asking the court to strike certain alleged trade secrets or require AON to amend them further, and also sought sanctions.
Court’s analysis
For discovery-management purposes, the court used the “reasonable particularity” requirement as a guide. That requirement calls for enough detail to identify the alleged trade secret, allow the opposing party to investigate how it may differ from information already known, and allow the court to manage relevant discovery.
For TS 3, 12, and 16, the court held that AON continued to use broad terms such as “optical components,” “optical elements,” and “optics” without adequately identifying the particular components or configurations it claimed as trade secrets. The court found that the current disclosure was broader and less specific than the earlier one and did not adequately guide discovery.
For TS 2, 9, 16, and 17, the court held that AON still had not clearly stated what the alleged trade secrets were. The court said AON did not have to prove at the disclosure stage that its trade secrets differed from publicly known information, but it had to describe them clearly enough for Seagate to investigate that issue. The court found that AON’s use of general language and explanatory footnotes created uncertainty about the scope of the alleged trade secrets.
For TS 11, however, the court found that AON had complied with the prior order. The court understood AON’s disclosure to identify certain knowledge, its cause, and its benefits. The court stated that AON did not need to provide a specific example or explain the optimization at a more detailed level at this stage. Seagate remained free to argue that the claimed knowledge was already publicly known.
The court also rejected AON’s argument that the May 27 order authorized it to add more than 50 new alleged trade secrets. The prior order addressed the 22 previously identified alleged trade secrets and did not generally permit AON to add new ones. The court was not persuaded that the new alleged trade secrets should guide discovery, particularly because AON disclosed them four months after the scheduling-order deadline without adequate justification. The court did not decide whether those new alleged trade secrets otherwise satisfied the reasonable-particularity requirement.
Ruling
The court granted in part and denied in part Seagate’s motion. It denied Seagate’s motion to strike AON’s disputed alleged trade secrets as a discovery sanction. It ordered AON to promptly amend the disclosures for TS 2, 3, 9, 12, 16, and 17 to clarify their scope, warning that failure to do so could affect AON’s ability to obtain corresponding discovery of Seagate’s confidential information. The court found that AON had already complied with the clarification requirement for TS 11. The court also declined, as a matter of discovery management, to allow AON’s belatedly added alleged trade secrets to expand the scope of discovery.
Read the full 9-page opinion on CourtListener, the free public archive maintained by the Free Law Project.
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