ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,841, issued on June 30, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).

"Control device for solar power generation system" was invented by Yuma Miyamoto (Miyoshi, Japan), Yukinori Murakami (Toyota, Japan), Takashi Fukai (Obu, Japan) and Akinori Kawamura (Okazaki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A control device performs: searching for a maximal efficiency voltage which is an output voltage of the first converter at which the output power of the first converter becomes maximal; storing the maximal efficiency voltage obtained by the searching; performing a voltage adjustment process of changing the output voltage of the first...