ALEXANDRIA, Va., June 9 -- United States Patent no. 12,650,478, issued on June 9, was assigned to HAMAMATSU PHOTONICS K.K. (Hamamatsu, Japan).

"Optical excitation magnetic sensor module" was invented by Norihisa Kato (Hamamatsu, Japan), Masaki Yamada (Hamamatsu, Japan) and Fusanori Kondo (Hamamatsu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optically pumped magnetometer module includes a housing and a cell unit disposed in the housing. The cell unit has a cell enclosing an alkali metal, a heat conductive member covering the cell, and a heater provided to the heat conductive member. The cell includes a main body portion having a light-passing region through which at least one of pump light and p...