ALEXANDRIA, Va., March 17 -- United States Patent no. 12,581,572, issued on March 17, was assigned to DENSO Corp. (Kariya-city, Japan).
"Film heater" was invented by Takahito Nakamura (Kariya-city, Japan) and Taro Ogura (Kariya-city, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A film heater has a transparent conductive portion including: at least one non-conductive portion that has electrical insulation properties and extends in a direction intersecting a vibration direction of an electric field included in a radio wave transmitted from a radio wave transmitter-receiver; and a heat generator that generates heat by being energized and that transmits light. The film heater has: a first electrode conne...