The page is full of examples.
“Apparently, Japanese Smileys(Emoticons) are read vertically while eastern Smileys(Emoticons) are read horizontally. And Japanese Smileys have more variation than eastern ons. I think the reason is that while American(alphabet) letters in computer are 1 byte, Japanese letters in computer are 2 bytes, so Japanese letters can have more characters. And also, Japanese sentences contain Chinese characters which are phonograms, so it is easier to express and recognize something graphic with letters for Japanese people.
“Second reason seems to that Japanese comics(manga) have many ways of express their feelings and situations by certain lines or graphics and Japanese do the same thing when they create smileys. So, a large number of Japanese Smileys(Emoticons) are influenced by comics.”
Link: Japanese Smileys (pep.ne.jp)