ALEXANDRIA, Va., May 26 -- United States Patent no. 12,639,640, issued on May 26, was assigned to Rakuten Group Inc. (Tokyo).

"Reservation device, reservation method, and recording medium" was invented by Takahiro Ito (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A reservation device includes a processor that acquires first date and time information for a first service and second date and time information for a second service. The processor sets selection information based on user input from the first date and time information. In a case in which the second service is to be simultaneously reserved after setting the selection information, the processor extracts simultaneously reservable dates and time...