PCECP seems to be doing the same for me. (Windows 8 64bit)
I have tired installing the Japanese language pack and the Japanese language option for Firefox. This may be an issue with PCECP as other Japanese sites show fine.
Can someone confirm if they can see the Kanji Name field correctly on PCECP who has their PC set to native Japanese?
General Tip for you:
If you are copying between web pages and your PC, notepad etc. You will need to change your language support options for non-Unicode programs to Japanese. Otherwise when you copy text from the web page to notepad the text will change to blocks and
To change this:
Control panel / Region / Administrative and click Change System Locale and set this to Japanese
(note region is 'Region and languages' in Windows 7)
However changing this does have a side effect!
As you have changed the 'support option for non-Unicode programs' to Japanese it does what is says on the tin! So for example in DOS '\' will now show as: