Group 1 - Company Yibo Technology announced on February 5 that it has obtained invention patent certificates from the National Intellectual Property Administration of China [1] - The patents include "A Method for Automatic Arrangement of Printed Circuit Board Device Position Numbers" and "A Method for Checking Sharp Angles in Timing Signal Printed Circuit Paths" [1] Group 2 - The article highlights the issue of millions of elderly individuals living alone in China and the need for solutions to help them age gracefully [1] - It mentions that the concept of intended guardianship has been present in China for 14 years but is still facing challenges in full implementation [1]