IP High Court, Reiwa 5 (Gyo-Ke) 10103 [Optical ferrule] <Judge Honda>
Updated: 3 days ago
Article information
Article type: Case note
Category: Patents
Topics: Inventive step, Patent corrections
First published on this website: October 2, 2026
Case number (as stated in the source): Reiwa 5 (Gyo-Ke) 10103
Display and classification checked: October 2, 2026 (not a re-review of the legal analysis)
IP High Court, Reiwa 5 (Gyo-Ke) 10103 [Optical ferrule] <Judge Honda>
The claimed “parting-line artifact” means a parting line (a step or flash) arising during mold forming. No further limitation on its specific size or the like is imposed.
When the cited invention is molded, its exterior geometry—designed to avoid undercuts and make flash inconspicuous—inevitably produces parting lines at the same locations as in the claimed invention: the outer edges of the mating surface or ridgelines.
⇒ No inventive step.
Original article: https://lnkd.in/eV9Xk9Ap
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Update and correction history
Substantive corrections and supplements are recorded separately from classification, related-article, and display maintenance.
October 2, 2026: First publication of the author's LinkedIn text. Article type, classification, issue tags, source, and consultation guide were added.
Consultation and inquiries
October 2, 2026: Updated topic tags.
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