Jinkosolar has filed a lawsuit against Longi over the use of an unspecified solar cell technology in Japan.
The lawsuit was filed by the Japanese unit of Jinkosolar Shangrao Xinyuan Yuedong Technology Development Co., Ltd. against the subsidiary of Longi Longi Solar Technology Co., Ltd. at the Japanese District Court in Tokyo.
These new legal actions follow those announced by Jinkosolar in early January, when it filed an infringement lawsuit against Longi in the Nanchang Intermediate People’s Court in China over its use of an undisclosed Topcon solar cell technology.
“The new lawsuit in Japan underlines Jinkosolar’s commitment to protecting its intellectual property rights worldwide and to maintaining a consistent position on this issue,” the company said in a statement, without providing further details.
In early December 2024, Jinkosolar filed an infringement lawsuit against its competitor vsun, a unit of Japan’s Fujisolar, in the US District Court for the Northern District of California. Jinkosolar said it is suing vsun and its U.S. affiliates, but did not disclose the patent involved in the dispute.
Jinkosolar claims to have amassed more than 2,800 patents, including a significant portfolio of 462 patents related to N-type TOPCON technology. It says this makes it one of the industry leaders for topcon patents, but has not provided additional details on the details of its patent holdings.
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