ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,978, issued on Jan. 13, was assigned to YAMAHA HATSUDOKI K.K. (Iwata, Japan).

"Mask delivery device and mask conveyance system provided with same" was invented by Masashi Wada (Shizuoka, Japan) and Takuma Hanji (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mask delivery device of the present invention is a device that transfers a mask used when printing solder on a substrate to an accommodating unit that accommodates the mask. The mask delivery device includes a mobile mechanism including a guide extending in a fixed direction along one surface of the accommodating unit having an opening for loading and unloading the mask and a m...