Filters
Eight Gates in the cube  - Yoshiyuki Kotani
Another Eight Puzzle - Yoshiyuki Kotani
Constellation - Yoshiyuki Kotani
Double Heart and Arrow - Yoshiyuki Kotani
12 Snakes Puzzle - Yoshiyuki Kotani
12 Snakes Type II - Yoshiyuki Kotani
RS-Octagon - Yoshiyuki Kotani
Yabane - Koichi Miura

Sliding / Acrylic

Designer: Koichi Miura
Maker: Other

Turtle's Heart - Yoshiyuki Kotani
Pengram - Hiroshi Yamamoto
Two Piece Boxed Burr 2PBB - Yoshiyuki Kotani
Icy Planet - Yoshiyuki Kotani
W-affair - Eiji Nakajima
Cloud and Sky Puzzle - Yoshiyuki Kotani
Desert Rose - Yoshiyuki Kotani
Too Many Paddles - Yoshiyuki Kotani
Nose and Lips - Yoshiyuki Kotani