Patent Case Law and Intellectual Property Practice Blog

日本語版 Article information Type: Case note Category: Patents Topics: Claim construction First published on this site: 2026-10-09 Case / source information: IP High Court, Reiwa 6 (Ne) No. 10019 / Tokyo District Court, Reiwa 4 (Wa) No. 18830 Display and classification checked: 2026-10-09 IP High Court, Reiwa 6 (Ne) No. 10019 — Rolling device (Judge Miyasaka) *The appellate court rejected the narrow construction adopted below (Tokyo District Court, Reiwa 4 (Wa) No. 18830), but fo

日本語版 Article information Type: Administrative decision note Category: Trademarks Topics: Trademark similarity First published on this site: 2026-10-09 Case / source information: Appeal No. 2024-11680 / Appeal No. 2024-10278 / Appeal No. 2024-10716 Display and classification checked: 2026-10-09 [Trademarks / JPO decision] Appeal No. 2024-11680 *Applied-for mark: “SENJYU”; cited mark: “千寿” (Senju). → Dissimilar. Note: The appellant sells products including “Kubota Senju.” *Appe

Japanese version: https://www.takaishihideki.com/single-post/大阪地判令和6年-ワ-7193号【物品搬送設備】-松阿彌 Article information Article type: Case note Category: Patents Topics: Employee inventions Published on this website: 2026-10-08 Display/classification checked: 2026-10-12 Osaka District Court, Reiwa 6 (Wa) No. 7193 — Article transport equipment (Judge Matsuami) ⇒ The claim for compensation for an employee invention was dismissed. 1. The process of formulating and operating the regulation

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 Nakahira) The judgment at first instance granting an injunction and JPY 1.27 billion was upheld. From the de

Japanese version: https://www.takaishihideki.com/single-post/linkedin-7513747861986177024-ja Article information Article type: Case note Categories: United States Issues: Injunctions Published on website: 2026-10-08 Display/classification checked: 2026-10-10 [United States] Incyte v. Sun Pharm (Federal Circuit, May 2025) A preliminary injunction is available where irreparable harm will be suffered. Even economic harm may qualify if it cannot readily be compensated as quantifi

Japanese version: https://www.takaishihideki.com/single-post/linkedin-7513419555235434496-ja Article information Article type: Publication review Categories: Patents Issues: Joint ownership, Contracts Published on website: 2026-10-08 Display and classification checked: 2026-10-08 [Article / Contracts] Examination of provisions in joint patent application agreements between universities and companies (Minoru Tokita, Intellectual Property Management, Vol. 75, No. 5, 2025) The o

Japanese version: https://www.takaishihideki.com/single-post/linkedin-7513746680962289664-ja Article information Article type: Case note Categories: Patents Issues: Support requirement Published on website: 2026-10-08 Display/classification checked: 2026-10-10 Tokyo District Court, Reiwa 2 (Wa) No. 4331 — Heated aerosol-generating device (Judge Nakashima) *Embodiments that cannot solve the problem are not included within the scope of the claims. → Support requirement satisfie

Japanese version: https://www.takaishihideki.com/single-post/linkedin-7513747399119626240-ja Article information Article type: Case note Categories: Patents Issues: Support requirement Published on website: 2026-10-08 Display and classification checked: 2026-10-08 IP High Court, Reiwa 1 (Gyo-Ke) No. 10103 — Support structure for a concrete foundation (Judge Mori) *The court defined the problem at a less demanding level. → Support requirement satisfied. (Excerpt from the judgm