Give my best to our pals down under!
I think you are talking about the red chop over my name.
I've used these several times in various pieces of my art before over the years.
I had a few of them custom made when I was in China and Japan.
One set I got for my brother and I. My chop had the character for "big brother" and his for "little brother".
And also a larger chop that says "Kabuki".
The one you are referring to was a gift to me from Miss Fumiko of the First Zen Institute of America.
I started using it recently (or late 2004 ) on the covers of "RUULE: Ganglords of China Town, and on the two "Ronin Hood" paintings I did, because they it sort of fit the subject matter and composition. I had painted them in a kind of eastern style.
The Wolverine cover, was also in Japan and featured Yukio on the cover, and it seemed to work there.
And I thought it just worked on the bold desing of the first White Tiger cover too.
And the covers have it too, as there is a Japanese imagery and subject matter in some of the story.