A few years ago, I requested help from Keiichi Okushi in obtaining a Hanko from Japan. I was told that I needed a "Rakkan" or pen name to make the Kanji for a Hanko.
Okushi-san consulted Sebata-san and he gave me my pen name.
We pronounce 幽 yu, 玄 gen, 釣 cho. 幽玄 means profound taste, and 釣 means fishing.
The first time I heard about a rakkan was from John Vetterli. I did not understand the process so I mention John because he knew about it and looking back, it made sense to me now.
This is the story behind my Hanko and Rakkan from Keiichi and Sebata-san.