TOKYO, July 12 (Xinhua) -- Tokyo stocks opened higher Thursday as a spike in the U.S. dollar against the yen helped lift exporter issues.

As of 9:15 a.m., the 225-issue Nikkei Stock Average added 165.42 points, or 0.75 percent, from Wednesday to 22,097.63.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, gained 9.45 points, or 0.56 percent, at 1,711.33.

Electronics, fishery, agriculture and forestry, pharmaceutical, and electric power and gas-linked issues comprised those that gained the most in the opening minutes after the morning bell.