31 March 2015
Last updated at 08:26
Features and Analysis
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Lost ideas
What has happened to Japan's inventors?
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Tsunami anniversary
Four years on
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Woes of sake brewers
Post-Fukushima, sake sales from the region have plummeted
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Sony minus mobile?
The chief executive of Sony talks about corporate strategies
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Tokyo tech start-ups
Can Japan's capital rival California's Silicon Valley?
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Robot vacuum cleaners
Dyson's first robot vacuum cleaner unveiled in Japan
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Emoji upgrade
'Diverse' emoji icons nearly here Newsbeat
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Nobel winner
US, Japanese scientists share the 2014 Nobel Prize for physics
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Negative savings rate
Japan's notable transformation
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The Abenomics vote
Will Japan's voters give its Prime Minister another chance?
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1% inflation
UK and Japan share worries over slowing inflation
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Trade talks
Trans-Pacific Partnership: What's at stake