The Powerpoint file I use for presentations at central banks has now been translated into Japanese! Above is the link to the translated blogpost introducing the file, and here is a direct link to the translated Powerpoint file: 

• スライド「ゼロ金利下限（および全ての下限）を取り除くことについての18の誤解
  

Many thanks to Akihito Sakata for doing this!