ALEXANDRIA, Va., March 24 -- United States Patent no. 12,587,141, issued on March 24, was assigned to HITACHI LTD. (Tokyo).
"Measuring instrument" was invented by Masahiro Masunaga (Tokyo), Ryo Kuwana (Tokyo), Shinji Nomoto (Tokyo) and Isao Hara (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "The measuring instrument includes a sensor unit that measures a predetermined physical quantity; an amplifier circuit that amplifies a signal output from the sensor unit; and a linear power supply that supplies power to the amplifier circuit, in which the amplifier circuit includes a first amplifier having a first transistor using a SiC semiconductor, the linear power supply includes a second amplifier having a se...