Your search for "Koji Iibuchi" revealed the following:

Figure 8 Rail for Mini Mini Train : Yoshiaki Ishikawa Railway Track 9mm Gauge N(1:150)

Battery-Powered Self-Propelled Miniature Train : Yoshiaki Ishikawa Pre-painted N (1:150)

Battery-Powered Self-Propelled Miniature Train : Yoshiaki Ishikawa Finished product N (1:150)

Sakatsu Dolls Series Manabe Collection - Drinking At Night (with Zabuton) : Sakatsu Painted Complete HO(1:87) 7522

Sakatsuu Doll Series Manabe Collection - Man on the Veranda Shogi B (with Dozing Cat) : Sakatsuu Finished product HO(1:87) 7526

Western Room with Sliding Window : Matsumoto Craft Works - 1:12 Scale - Painted by Yoshihiko Matsumoto

Self-propelled miniature train with built-in battery : Yoshiaki Ishikawa Finished product N (1:150)

Open-air bath made of Japanese cypress: Kobani unpainted kit 1:12 scale WZ-012

Battery-Powered Self-Propelled Miniature Train Pantograph Type: Yoshiaki Ishikawa Finished product N (1:150)

Battery-Powered Self-Propelled Miniature Train (Choshi 501 Orange) Pantograph Type: Yoshiaki Ishikawa Finished product N (1:150)

Inside the entrance of the cafe and restaurant: Cobani unpainted kit 1:24 scale SS-036

Time Zone Magic Swordsman: FANTAJOU, Diorama work, 30MF Size

[Model] Gate (D) Note: Kobaru Equivalent: Sakatsu Unpainted Kit N (1:150) 3850

Battery-Powered Self-Propelled Mini Mini-Train Pantograph Type: Yoshiaki Ishikawa Finished product N (1:150)

Summer Series (Beach Accessories) Red: Kobaru Unpainted Kit N (1:150) KS-1R

[Model] Planoita Mortar Note: Kobaru Equivalent: Sakatsuu Material N (1:150) 3750

Howl's Moving Castle "Howl's Castle" : Sankei Kit Non-scale MK07-21

Battery-Powered Self-Propelled Miniature Train Pantograph Type: Yoshiaki Ishikawa Finished product N (1:150)

Sakatsu Yokai Doll - Nuppefufu: Sakatsu unpainted kit HO(1:87) 403

[Model] Standing Signboard Set Note: Kobaru Equivalent: Sakatsu Unpainted Kit N (1:150) 3817