Over at http://www.aule-browser.com/kanji/kana-charts-curl.html there is now a view of all Japanese punctuation listed at ja.wikipedia.org with UNICODE 16-bit and often also the utf-8 for urlencode.
Unfortunately, my favourite HanaMinA font was not adequate to the task, but neither were any of the default Unicode DejaVu, Lucida or Arial fonts.
Here is a snap of the result:
The font-family selection for punctuation characters required the use of a CharClass - a char-map class in Curl. A total of 4 font families contributed to forming a complete list - most often with half-width presentation preserved.