2023 (Ne) 10101 [Lighting Device] <Shoji>
Updated: 2 days ago
Article information
Article type: Case note
Category: Patents
Topics: Doctrine of equivalents
First published on this website: 2026-11-01
Display and classification checked: November 2, 2026
Originally published on Ameblo: 2025-02-09 (Japan time). Full English translation.
2023 (Ne) 10101 [Lighting Device] <Shoji>
“[The patentee] argues that the essential part is changing color temperature according to the degree of wakefulness while keeping illuminance substantially constant. However, …the patented invention's contribution cannot be regarded as large compared with the prior art, so …it cannot be generalized to a broader concept ….”
⇒ First requirement of the doctrine of equivalents: not satisfied
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November 1, 2026: First published on this website.
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