ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,652, issued on Dec. 9, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).
"Blow-by gas recirculation device" was invented by Masami Ishikawa (Aichi-ken, Japan), Tomoya Oshima (Susono, Japan) and Yukio Koseki (Susono, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A first passage communicating a portion downstream side of the compressor in the intake passage and an upstream side of the intercooler with the crankcase, a second passage communicating a portion downstream of the intercooler in the intake passage with the crankcase, and a third passage communicating a portion upstream of the compressor in the intake passage with the crankcase are i...