Shares in the company jumped by another 13% on Tuesday to 22,840 yen.
The Nikkei 225 index rose 2.46% to close at 16,095.65 points, adding to a 4% rally from the day before.
The index is now within 1% of the level it closed at the day before the Brexit vote triggered a global sell-off.
The broader Topix index rose 2.4% to close at 1,285.73.
Shares across the rest of Asia were also buoyed by Wall Street rising to record peaks on the back of talk of policy stimulus in Japan and the UK.
In Hong Kong, the Hang Seng index ended the day up 1.7% at 21,224.74, while China's Shanghai Composite rose 1.8% to 3,049.38.
In Australia, the ASX/200 rose 0.3% to close at 5,353.22 points.
South Korea's benchmark Kospi index edged up by 0.1% to close at 1,991.23 points.
The popularity of Nintendo's new augmented reality game Pokemon Go has powered the company's shares higher for a third day, adding billions more to the games developer's market value.