Nintendo's Pokémon Catching-Related Patent Has Been Rejected In Japan

Nintendo has experienced a legal setback in Japan, as its patent application (2024-031879) related to monster-catching mechanics, specifically throwing and aiming to capture or battle creatures, was rejected by the Patent Office for lacking an "inventive step" due to prior art. While non-final, this rejection is significant because the patent is part of a family crucial to Nintendo's ongoing infringement lawsuit against Pocketpair's Palworld, potentially signaling broader issues for their case which seeks an injunction and damages.

Analysis

Nintendo has encountered a legal setback in Japan, with its patent application (no. 2024-031879) related to monster-catching mechanics rejected by the Patent Office on October 22, 2025. The rejection, citing a lack of "inventive step" due to "prior art" such as ARK, directly impacts a core aspect of its intellectual property strategy concerning the act of throwing and aiming objects to capture or battle creatures. This development carries a moderately negative sentiment score of -0.5 and a market impact score of 0.45.

While non-final, this refusal carries significant implications for Nintendo's ongoing patent infringement lawsuit against Pocketpair's Palworld, initiated in September 2024. The rejected application is part of a patent family, including JP7493117 and JP7545191, which are crucial to the main case seeking an injunction and damages. Issues with one patent in a family often signal potential vulnerabilities for related claims, and patent examiner decisions frequently influence judicial outcomes.

The patent office's stance, referencing games like Craftopia and Pokémon GO as prior art, could weaken Nintendo's leverage in the broader litigation. Although Pocketpair has modified its game mechanics and is considering a Switch 2 release, this legal challenge highlights the difficulty in enforcing broad patent claims in the rapidly evolving gaming industry, potentially affecting future licensing or competitive landscape in the monster-catching genre.

Key Decisions for Investors

• Investors should closely monitor the progress of Nintendo's main patent infringement lawsuit against Pocketpair, as this patent rejection could weaken its legal standing and potential for damages or injunctions.
• Assess the broader implications for Nintendo's intellectual property protection strategy, particularly concerning its ability to defend core game mechanics against perceived infringers in the competitive gaming market.
• Consider potential impacts on Nintendo's competitive positioning within the monster-catching genre, given the challenges highlighted in enforcing patent claims against similar game mechanics.