There's an Egidius Bellemakers on Facebook and LinkedIn who lives in Japan. I think you can e-mail him at email@example.com
(I'm retired and have way too much time on my hands.)
I really want to thank you so much !!! This is the guy I was looking for several years! Thank you very much ! I used to writte his name like "Gidius" or "Aegidius" and it never worked....
Encore merci beaucoup !