ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,041, issued on Dec. 16, was assigned to RUBYCON Corp. (Ina, Japan) and HEC KOUYO JAPAN Co. LTD. (Tokyo).
"Electrolytic capacitor" was invented by Tsutomu Kaneko (Ina, Japan) and Yoshishige Sakurai (Ina, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention addresses a problem of providing an electrolytic capacitor with which an etching treatment of an electrode material is not required and with which it is possible to achieve higher capacitance than conventional electrolytic capacitors using electrode foils having surface areas increased only by etching. This electrolytic capacitor, as a solution, includes a capacitor element ha...