Tokyo District Court, Reiwa 5 (Wa) 70393 [Foldable and stowable temporary protective fence] <Judge Nakashima>
Updated: 2 days ago
Article information
Article type: Case note
Categories: Patents
Issues: Claim construction
Published on website: 2026-10-08
Display and classification checked: 2026-10-08
Tokyo District Court, Reiwa 5 (Wa) 70393 [Foldable and stowable temporary protective fence] <Judge Nakashima>
* The problem was to reduce weight and make the structure more compact.
⇒ A “pivoting plate-shaped member” is a thin, plate-like member and does not include a circular pipe or rectangular tube.
(Excerpt from the judgment, translated)
Considering the term “plate-shaped” in the “pivoting plate-shaped member” recited in the claim elements, that member solves the problems addressed by the inventions by making the pivoting member plate-shaped and thereby reducing its thickness in the transverse direction of the base frame (H-section steel). It is therefore properly construed as a thin, plate-like member that does not include a circular pipe or rectangular tube.
The defendant's product uses a rectangular tube as the structure corresponding to the “pivoting plate-shaped member.” It therefore cannot be found to satisfy that element.
Figures: see the original article.
Original article (2025-10-20):
Originally posted on LinkedIn: https://www.linkedin.com/feed/update/urn:li:activity:7513417723817930752/
Consultation guide by purpose: https://www.takaishihideki.com/en/single-post/consultation-guide-en
Update history
The update history records only changes actually published, with dates.
2026-10-08: First publication of the LinkedIn original; display, classification, and consultation link set.
2026-10-08: Updated issue tags and classification.
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Original AMEBLO article
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