If you want to edit one post or post as you find the mangaka is up to you.
I remember two of them.
- Yoshihiro Togashi (Yu Yu Hakusho - Hunter X Hunter) → Yoshio Sawai (Bobobōbo Bōbobo)
- Tetsuo Hara (Hokuto no Ken) → Masanori Morita (Rokudenashi Blues - Rookies)
Yoshihiro Togashi -> Naoko Takeuchi
It is only for a while though. And it happened after Naoko completed Sailor Moon... I heard she quit because mangaka assistant's life is tough. :blink
Iwashiro Toshiaki (Psyren) -> Tamura Ryuhei (Beelzebub)
Yet another mangaka whose assistant become more popular/successful that he is. :amuse
Araki Hirohiko (Jojo Bizarre Adventure) → Onikubo Hirohisa (Heat Island) + Naka Masato + Makino Yasuhiro (Akibakei Net Idol Project) + Sanbe Kei (Mouryou no Yurikago) + Tanaka Yasuki* (Kagijin) + Shinkai Hideo (Light Wing) + Shiibashi Hiroshi (Nurarihyon no Mago) → Hidano Kentarou (Chrono Mansion) + Yokota Takuma (Tensei Henshin DX Dragon Shaft) + Yoshimura Kana （Our Tube) + N + Senda Hiroyuki + Koshikuba Meori
*Tanaka Yasuki (idem) → Miyokawa Masaru (Foo Fighter Fuji) + Neda Hirofumi (Shinikake Senshi! Soushinman) + Horikoshi Kouhei (Oumagadoki Doubutsuen)
Miyake Ranjou (Imuri) → Yamazaki Mari (Thermae Romae)
Mochizuki Akira (Sign wa V!) → Murakami Motoka (Jin) + Ikezawa Satoshi (The Circuit Wolf) → Miyama Noboru (Requiem) → Yamada Takatoshi (Dr. Koto Shinryoujo) → Moto Souichi (Mugen no Gunkan Yamato) + Kuromaru (Kurosagi) + Takemura Yuuji (Kaze no Kishi Shou) → Togami Shin (Tamafuri) + Wakaki Tamiki (Kami nomi zo Shiru Sekai) → Hirai Tomoko + Saitou Satsuki + Kojima Takeshi (Dragon Jockey) + Nakanishi Hiroshi + Morita Shigeru (Makai Gaikoukan) + Gotou Masaki (Kannuki Makoto no Mahoutsukai Shinansho) + Kanno Takanori (Crimsons -Akai Koukaisha-tachi-) + Kawanaka Yasushi (Sado-hime no Basuke) + Yamada Kento
Kinda suprised nobody linked into this website yet: http://www.ktr.to/Comic/assistant.html
(I always hate when I take on a project then stubble across that one website which can really speed this whole thing up)
It's not broken up by magazine (or era), so it's kinda hard to work through, but an English version of that would be very helpful.
@andyislands: Thank you so much! I'm sure there are A LOT more mangaka left to cover so this project is not quite done yet.
The next step is to organize these mangaka/assistants into categories, but that's for me to worry about so keep on posting!
Oh, it looks like I am late after everyone posted so many mangaka and their assistants. :(
Oh well, I guess I can help out with something else then, I can see what I can find but it is hard after everyone posted so much.
So if I understand this diagram correctly: http://www.ktr.to/Comic/assistant.png
Then Kishimoto wasn't assistant under any well known Mangaka (or at least not amongst one of this list which seems potentially Shounen exclusive to me? Dunno, there are only few English names) and hat at least five assistants who later published their own works?
Perhaps they won't give him so many assistants anymore and that's why he's continuisly complaining about having to do so much work :amuse
I updated the original post to include all the mangaka and their assistants in one thread. For simplicity I categorized them according to the head mangaka's demographic. It means that even though Mochizuki Akira's assistants (and their assistants) work primarily with shonen, I placed her chain under shoujo because that's her demographic.
We still don't have any examples for josei, and we need more shoujo artists!
Miura Kentaro's (Berserk) assistant, Mitsuhiku Kyuji, seemingly just started with Ookami no Kuchi: Wolfsmund (thx to Kaiten for telling us :D)
Also has a rather similar scenario, like Berserk it's a medieval european one.
Nobuyuki Anzai(Flame of Recca) -> Makoto Raikou(Gash Bell)
MASHIMA Hiro (Rave, Fairy Tail) -> YOSHIKAWA Miki (Yanki-kun to Megane-chan) + MIKUNI Shin (Spray King)