Mitsubishi 3MT3 in 1/50, by Fukushima-ken Hamadori Mokei Seishaku Aikokai member Akatsuka-san
Akatsuka-san also built a Mitsubishi B2M2 in 1/50
BEAUTIFUL Type Ko Fighter (Nieuport 29C1) in 1/32
by Matsudo Meisaikai member Komuro-san.
All scratch built.
Komuro-san also built a Type Ko-3 fighter (Nieuport 24C) and an Otsu-1 Recce (Salmson 2A2) in 1/144. Also scratch built.
My personal favorite, Nakajima J5N1 "Tenrai", Racoon Models 1/48, by Ikeda-san
The booth of All-Japan Solid Model Group (a get-together of solid model groups from around Japan) had some really spectacular models.
Kawasaki KD5 in 1/25 by Osaka Solid Model
Club "Saiun-kai" member Nishino-san