<blockquote>
  <p>What is Unicode range of all Japanese characters?</p>
</blockquote>

<p>Have a look at page of <a href="https://arxiv.org/pdf/1801.07779.pdf#page=5" rel="nofollow noreferrer">The WiLI benchmark dataset for written
language identification</a>, especially table II. The number in bracket is the part of the language you capture with the Unicode code range (in decimal).</p>

<ul>
<li>12352 - 12543: Japanese (48.73%), English (0.00%)</li>
<li>19000 - 44000: Japanese (32.78%), English (0.00%)</li>
<li>20 - 128: English (99.74%), Japanese (11.58%)</li>
</ul>

<p>You can see that 20 - 128 captures English really well and that all 3 blocks are important for Japanese, but still big parts are missing.</p>

<p>Those numbers are created with <a href="https://github.com/MartinThoma/lidtk" rel="nofollow noreferrer"><code>lidtk</code></a> and <a href="https://zenodo.org/record/841984" rel="nofollow noreferrer"><code>WiLI-2018</code></a>.</p>
Unicode range for Japanese
<p>I am trying to separate English and Japanese characters. I need to find Unicode range of all Japanese characters. What is Unicode range of all Japanese characters ?</p>