IP High Court, Reiwa 5 (Gyo-Ke) 10104 [Device formed from a very low resistance material…] <Judge Hibiku Shimizu>
Updated: 4 days ago
Article information
Article type: Case note
Category: Patents
Topics: Enablement, Patent corrections
First published on this website: October 2, 2026
Case number (as stated in the source): Reiwa 5 (Gyo-Ke) 10104
Display and classification checked: October 2, 2026 (not a re-review of the legal analysis)
IP High Court, Reiwa 5 (Gyo-Ke) 10104 [Device formed from a very low resistance material…] <Judge Hibiku Shimizu>
⇒ Enablement requirement not satisfied.
The test results in the specification (Figures 14A–21B) show resistance decreasing as temperature falls, but none shows resistance reaching zero.
Resistance and resistivity must be distinguished. With nonzero resistance, the material cannot be said to be superconducting.
Even assuming that part of it became superconducting, no concrete method is disclosed for extracting only that part to form a conductor.
⇒ Regarding the Josephson effect, the specification's assertion that Josephson current flows through a barrier material despite the conductor not being superconducting (zero resistance) contradicts common technical knowledge.
The specification contains no test results supporting such a phenomenon, and the plaintiff's affidavit supplies no concrete basis either.
Original article: https://lnkd.in/eY-xwTfa
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.
2026-10-13: aligned related-article, topic-guide, and other managed links with the articles’ published URLs. The original article text was not changed.
Comments