In a major blow to Google's smartphone ambitions in Japan, a court has issued a ruling that bans the sale of the Pixel 7 and Pixel 7 Pro in the country. The verdict, issued by the Tokyo District Court, found that Google had violated patent rights related to LTE technology, effectively prohibiting not just sales, but also imports, marketing, and public display of these devices.

According to a report by ETNews, the lawsuit centres around a specific method of communication used in 4G networks. At issue is the process by which an “acknowledgement signal” (or ACK) is transmitted between mobile devices and base stations. This technical mechanism plays a central role in how current-generation networks function.

Though the technology originates from a company no longer active in smartphone production, Pantech's patents still carry legal weight. The court concluded that Google’s Pixel 7 series had used the patented method without proper licensing.

What further complicates the matter for Google is the judge’s strong disapproval of the company’s conduct during legal proceedings. The court criticised Google for what it described as an "insincere attitude," which reportedly influenced the court's decision to enforce a comprehensive ban rather than a limited or negotiated outcome.

This ruling presents a serious challenge to Google’s recent momentum in Japan. The Pixel brand had recently climbed to second place in the country’s smartphone rankings, trailing only Apple. The success of the Pixel 7 series, including the budget-friendly Pixel 7a, had played a key role in that rise.

However, the implications of the court’s decision may not stop with the Pixel 7 lineup. Patent holder IdeaHub, along with Pantech, is now seeking to extend the ban to include newer devices such as the Pixel 8 and Pixel 9 series. While the court has not yet issued a ruling on these models, the legal pressure is mounting.

Analysts suggest that if the ban widens, it could deeply impact Google's presence in one of its strongest non-US markets. Japan has become a rare bright spot for Pixel devices globally, and any setback here could derail years of consumer brand-building.

Google has yet to issue a detailed response to the ruling. The company now faces a critical choice: to appeal the decision, negotiate a licensing deal, or alter the design of future devices to avoid further legal issues. Each option presents its own set of risks, particularly with the Pixel 9 expected to launch later this year.

At present, only the Pixel 7 and Pixel 7 Pro are affected by the ban. Still, with legal efforts underway to target more models, the situation remains unresolved. This case also underscores a wider trend in the tech industry, where long-dormant patents are being used more assertively in intellectual property disputes—even by companies no longer involved in the consumer electronics sector.

As developments continue, industry watchers are closely observing how Google plans to respond—and whether the Pixel brand can maintain its foothold in Japan amid growing legal challenges.