Tokyo District Court, Reiwa 5 (Wa) 70619 [Apparatus for measuring the difference between port and starboard vessel drafts] <Presiding Judge Nakashima>
日本語版を読む / Japanese version Article information Article type: Case note Category: Patents Topics: Patent corrections, Employee inventions First published on this website: October 2, 2026 Case number (as stated in the source): Tokyo District Court, Reiwa 5 (Wa) 70619 Display and classification checked: October 2, 2026 (not a re-review of the legal analysis) Tokyo District Court, Reiwa 5 (Wa) 70619 [Apparatus for measuring the difference between port and starboard vessel drafts]
![[Article / Designs] Overview of court decisions on employee-created designs (Tsuyoshi Fujimoto, Patent, January 2026)](https://static.wixstatic.com/media/324a18_ad141ac4a02b45d2bf0cd7a35874b87b~mv2.png/v1/fill/w_1017,h_765,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/324a18_ad141ac4a02b45d2bf0cd7a35874b87b~mv2.png)
![[Article / Designs] Overview of court decisions on employee-created designs (Tsuyoshi Fujimoto, Patent, January 2026)](https://static.wixstatic.com/media/324a18_ad141ac4a02b45d2bf0cd7a35874b87b~mv2.png/v1/fill/w_1017,h_765,fp_0.50_0.50,q_95,enc_avif,quality_auto/324a18_ad141ac4a02b45d2bf0cd7a35874b87b~mv2.png)
[Article / Designs] Overview of court decisions on employee-created designs (Tsuyoshi Fujimoto, Patent, January 2026)
There have been five cases claiming remuneration solely on the basis of employee-created designs, but no published court decision has awarded it. Compared with patents (employee inventions), the following differences and points warrant attention in calculating reasonable remuneration.
[Claim for remuneration for an employee invention]
Tokyo District Court, Case No. 2023 (Wa) 70685 (Presiding Judge Sugiura) The three perspectives prescribed by Article 35(4) of the Patent Act as amended in 2004:
Legal Update (Items Posted in February 2026)
A review of 34 articles published in February 2026 by attorney Hideki Takaishi, covering claim interpretation, inventive step, inventorship, employee inventions, pharmaceutical patents, standard-essential patents and copyright.
![Tokyo District Court, 2012 (Wa) 12351 [Rice Cake]](https://static.wixstatic.com/media/324a18_1e68d290faf1421383ef0182da9fd77b~mv2.png/v1/fill/w_225,h_125,fp_0.50_0.50,lg_1,q_35,blur_30,enc_avif,quality_auto/324a18_1e68d290faf1421383ef0182da9fd77b~mv2.png)
![Tokyo District Court, 2012 (Wa) 12351 [Rice Cake]](https://static.wixstatic.com/media/324a18_1e68d290faf1421383ef0182da9fd77b~mv2.png/v1/fill/w_152,h_84,fp_0.50_0.50,q_95,enc_avif,quality_auto/324a18_1e68d290faf1421383ef0182da9fd77b~mv2.png)
