China techStartups power Shenzhen's rise as high-tech hub
City produces more than half of China's international patent filings
Shenzhen, long known as a production center, is emerging as a global hub for innovation. © AP
SHUHEI YAMADA, Nikkei Asia Tech chief editor and YUSUKE HINATA, Nikkei staff writer
SHENZHEN/GUANGZHOU -- When a young entrepreneur was looking for a place to launch his idea for mass-producing a superstrong material of the future, he did not go to Silicon Valley but rather to a Chinese metropolis that has become a magnet for high-tech startups.