Patent Case Law and Intellectual Property Practice Blog

日本語版 Article information Article type: Case note Category: Patents Topics: Inventive step, Motivation and teaching away, Examination and appeal practice First published on this site: 2026-10-10 Display/classification checked: 2026-10-10 IP High Court, Reiwa 6 (Gyo-Ke) No. 10049 — Information processing apparatus (Judge Miyasaka) *The trial decision did not state the reasons for its obviousness determination. → Inventive step affirmed. (Excerpts from the judgment, translated;

日本語版 Article information Article type: Case note Category: Patents Topics: Inventive step, Patent corrections, Added matter First published on this site: 2026-10-10 Display/classification checked: 2026-10-10 IP High Court, Heisei 25 (Gyo-Ke) No. 10266 — Transparent film (Judge Ishii) *A claim with a disclaimer does not introduce new technical matter if it does not affect the problem addressed by the invention. → Correction requirements satisfied, but inventive step denied aft

日本語版 Article information Article type: Case note Category: Patents Topics: Inventive step First published on this site: 2026-10-10 Display/classification checked: 2026-10-10 IP High Court, Reiwa 2 (Gyo-Ke) No. 10094 — Agent for suppressing recurrence of reflux esophagitis (Judge Mori) *Common general knowledge at the priority date: completion of a phase II clinical trial led to denial of inventive step. Phase I clinical trial: safety trial Phase II clinical trial: efficacy tr

日本語版 Article information Article type: Case note Category: Patents Topics: Inventive step, Numerical limitations and parameters First published on this site: 2026-10-10 Display/classification checked: 2026-10-10 IP High Court, Heisei 31 (Gyo-Ke) No. 10055 — Mechanical fastener (Judge Otaka) *The claimed numerical range overlapped with the preferred numerical range disclosed in the cited reference. → The claimed numerical range was obvious. (Excerpt from the judgment, translat

日本語版 Article information Type: Case note Category: Patents Topics: Inventive step, Motivation and teaching away First published on this site: 2026-10-09 Case / source information: IP High Court, Reiwa 6 (Gyo-Ke) No. 10019 Display and classification checked: 2026-10-09 IP High Court, Reiwa 6 (Gyo-Ke) No. 10019 — Laminate of a polyester resin composition (Judge Miyasaka) *The court recognized a general problem without requiring documentary evidence. → Inventive step denied. (Ex

Japanese version: https://www.takaishihideki.com/single-post/令和5年-ワ-70004【携帯情報通信装置】-髙橋 Article information Article type: Case note Category: Patents Topics: Inventive step Published on this website: 2026-10-08 Display/classification checked: 2026-10-12 Reiwa 5 (Wa) No. 70004 — Portable information communication device (Judge Takahashi) = Reiwa 5 (Wa) No. 70035 = Reiwa 4 (Wa) No. 70131 At the priority date of the patent at issue, it would have been easy for a person skilled in

Japanese version: https://www.takaishihideki.com/single-post/linkedin-7513748208679018496-ja Article information Article type: Case note Category: Patents Topics: Inventive step, Numerical limitations and parameters Published on this website: 2026-10-08 Display/classification checked: 2026-10-14 IP High Court, Heisei 31 (Gyo-Ke) No. 10055 — Mechanical fastener (Judge Otaka) The numerical range overlapped with the preferred numerical range described in the cited reference. ⇒ T

Japanese version: https://www.takaishihideki.com/single-post/知財高判令和6年-ネ-10048【電池】-中平 Article information Article type: Case note Category: Patents Topics: Claim interpretation / Inventive step / Injunctions / Damages Published on this website: 2026-10-08 Display/classification checked: 2026-10-12 Intellectual Property High Court, Reiwa 6 (Ne) No. 10048 — Battery (Judge Nakadaira) The judgment at first instance granting an injunction and JPY 1.27 billion was upheld. From the d

Japanese version: https://www.takaishihideki.com/single-post/linkedin-7513418313813618688-ja Article information Article type: Case note Categories: Patents Issues: Inventive step Published on website: 2026-10-08 Display and classification checked: 2026-10-08 IP High Court, Reiwa 5 (Gyo-Ke) 10100 [Gas-scrubber fluid purification apparatus] <Judge Shimizu> The invention's technical significance lies in dividing functions between the scrubber body and the separation system thro

Japanese version: https://www.takaishihideki.com/single-post/linkedin-7513392417186791424-ja Article information Article type: Publication review Categories: Europe Issues: Inventive step, Enablement Published on website: 2026-10-08 Display and classification checked: 2026-10-08 [Article / European Patents] Decisions Relating to Plausibility After G 2/21 Review of Decisions Relating to Plausibility After Decision G 2/21 (Yoshinori Shimizu, Eisan Go, Rie Kawai, Patent, Novembe