[Unfair Competition Prevention Act / Trade secrets]

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Article information

Article type: Case note

Display and classification checked: 2026-09-30

Categories: Unfair competition law

Topics: Trade secrets / Proof of infringement

Published on this website: 2026-09-29

[Unfair Competition Prevention Act / Trade secrets]

Osaka District Court, Case No. 2024 (Wa) 5424

(Presiding Judge Matsuami)

"Details of users' insurance information, etc. (part of the master maintenance information), and Home-Visit Nursing Record I" constitute trade secrets.

"Lists of staff members and medical institutions, etc., generic consent form templates, manuals, etc." do not constitute trade secrets (insufficient proof).

Acquisition of the Home-Visit Nursing Record II information at issue is established. However, disclosure to defendant A cannot be found as a fact, because the only evidence was an email prepared by the attorney acting as counsel, and there had been no opportunity to impeach it.

The group resignation and handover of users occurred against the background of the consent of the plaintiff's representative and dissatisfaction with the workplace environment, and are not recognized as unlawful solicitation of employees or disloyal conduct.

⇒ No tort established.

https://lnkd.in/ga8zBGK9

https://lnkd.in/gUKfdDeu

hanrei-pdf-95505.pdf — courts.go.jp

Originally posted on LinkedIn: https://www.linkedin.com/feed/update/urn:li:activity:7509876168200835072/

The conclusion that no tort was established above concerns the group resignation and solicitation issues. In the operative part, the court partially granted the claims against the defendant company and defendant A, ordering them to cease use or disclosure of specified information and to destroy that information; the remaining claims were dismissed.

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Updates and corrections

This log starts on 30 September 2026. Display and classification checks are distinct from a review of the legal analysis.

2026-09-30 — Presentation update: added the article type, this change log and a link to consultation options. The existing article text was preserved.

2026-10-01 | Related articles: added reciprocal links with shared-topic or comparative grounds; original text unchanged.

2026-10-01 | Name notation: replaced verified Japanese-script personal names with Roman-letter forms in this English article and its navigation. Legal analysis and original publication date unchanged.

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October 28, 2026 — HT: Corrected verified names, case references, court labels, wording or judgment links where applicable. Existing commentary and materials have been retained.