Toshiba, which returned to the prestigious first section of the Tokyo Stock Exchange on Friday more than three years after it was demoted to the second section, was trading down 0.87 percent at 3,400 yen.
Among major shares in Tokyo, Panasonic was up 2.91 percent at 1,468 yen, industrial robot firm Fanuc was up 2.74 percent at 27,895 yen, and Olympus was up 0.95 percent at 2,018.5 yen.
Pharmaceuticals Astellas Pharma was down 0.48 percent at 1,648.5 yen, Chugai was down 0.86 percent at 5,787 yen and Shionogi was down 1.16 percent at 5,817 yen after brokerage firms downgraded their evaluation of its shares.
Japan has booked a trade surplus of 366.8 billion yen ($3.5 billion) in November, the fifth consecutive monthly surplus, according to data released by the finance ministry before the opening bell, which prompted little reaction from investors.