Nintendo Co., Ltd.

Nintendo Co., Ltd., commonly known as Nintendo, is a Japanese multinational video game company headquartered in Kyoto, Japan. Founded on September 23, 1889, by Fusajiro Yamauchi, the company initially produced handmade hanafuda playing cards. Nintendo is a publicly traded company on the Tokyo Stock Exchange (TYO: 7974). As of March 31, 2025, Nintendo had 8,205 employees globally. For the fiscal year ending March 31, 2026, the company reported revenue of ¥2.31 trillion (approximately $14.7 billion USD). Its market capitalization was approximately $66.94 billion USD as of May 17, 2026.

Nintendo develops, publishes, and manufactures video games and video game consoles. Its major product lines include gaming hardware such as the Nintendo Switch and the recently launched Nintendo Switch 2, alongside classic systems like the Game Boy, Nintendo Entertainment System (NES), and Wii. The company is renowned for popular video game franchises including Mario, The Legend of Zelda, Pokémon, Donkey Kong, and Kirby. Beyond hardware and software, Nintendo offers online services such as the Nintendo eShop and Nintendo Switch Online.

Based on available data, Nintendo Co., Ltd. operates as an operating company that actively engages in the video game industry rather than being a non-practicing entity. The company's patent litigation posture indicates it defends its intellectual property or challenges the validity of patents held by others. With one tracked case as a plaintiff and zero as a defendant, Nintendo's activity points towards leveraging its patent portfolio defensively or proactively to protect its extensive product lines.

The sole tracked case involving Nintendo Co., Ltd. is Nintendo Co., Ltd. et al. v. Resonant Systems Inc., where Nintendo is listed as a plaintiff in a proceeding at the Patent Trial and Appeal Board (PTAB), initiated on June 23, 2025. This action at the PTAB suggests Nintendo is challenging the validity of a patent, a common strategy for operating companies to mitigate patent infringement risks or invalidate patents asserted against their products or technologies.