The European Patent Office granted patent EP4276927A1 to Japan Aerospace Exploration Agency (JAXA) for electrode technology and battery production methods. The patent, published March 25, 2026, covers electrodes for aerospace applications and methods of producing the same. Five inventors are listed: Hosono Eiji, Asakura Daisuke, Kitaura Hirokazu, Sone Yoshitsugu, and Takahashi Ayaka. The patent is classified under multiple H01M battery-related IPC categories.

This is a patent grant announcement with no compliance obligations. Manufacturers in the battery technology sector may wish to review the patent claims to assess potential licensing needs or freedom-to-operate considerations. The patent has no compliance deadlines, reporting requirements, or penalties associated with it.