Company overview. Yi Technologies, Inc. (marketed as YI Technology, and as Xiaoyi / 小蚁 in China) is a private, venture-backed consumer-electronics and computer-vision company founded in 2014 by Shengwei "Sean" Da. Its main operating entity, Yunyi Zhilian (Shanghai) Information Technology Co., Ltd. (formerly Shanghai Xiaoyi Technology Co., Ltd.), is headquartered in Shanghai's Pudong district; business databases also list a US entity office in Bellevue, Washington. Xiaomi was an early backer and led a reported $90M Series A in 2016, after which YI ended Xiaomi branding; other investors include Qiming Venture Partners, 5Y Capital and Xiaomi Ventures. Size estimates vary widely across databases (roughly 80–430 employees), and no reliable public revenue figure is available.
Products / services. YI develops and sells imaging hardware and vision software: 4K action cameras (YI 4K/4K+), indoor and outdoor home-security cameras (YI Home, Dome X, PTZ) and the Kami smart-home sub-brand, dash cams, the YI M1 mirrorless camera, VR cameras (YI 360; YI Horizon VR180, developed with Google), and the YI Erida drone. It has more recently positioned itself around AI/edge-computing vision solutions for security, retail and smart-city deployments, with IoT cloud platforms.
Patent-litigation posture. The company is an operating company, not an NPE. It has zero plaintiff cases and one defendant case in our data: it was sued, not suing. That single appearance is a patent-infringement action brought by an acquirer of third-party patents, and the case resolved through voluntary dismissal rather than judgment.
Notable case. Cedar Lane Technologies Inc. v. Yi Technologies, Inc., No. 1:22-cv-01403 (D. Del.), filed Oct. 26, 2022, tracked alongside the lead caption "Cedar Lane Technologies Inc. v. Turing Video et al." Cedar Lane is a Canadian-based non-practicing entity that has filed hundreds of suits, largely in W.D. Tex. and D. Del., asserting patents (here U.S. 6,972,790 and 8,537,242, "Host interface for imaging arrays") acquired from other holders. Cedar Lane voluntarily dismissed the YI case on March 14, 2023.