Your search for "koji iibuchi" revealed the following:

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

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

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

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

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

Party's about to start : Kumi Chikada Finished product figure - Non-scale

[Model] Laundry Set Note: Kobaru Equivalent: Sakatsuo Unpainted Kit N (1:150) 3823

Christmas Book 2 : Kumi Konda - painted, Non-scale

Sakatsu Doll Series Manabe Collection - Man sitting and smoking : Sakatsu Unpainted Kit HO(1:87) 7015

[Model] Flexible Fence (High) Note: Kobaru equivalent: Sakatsu Unpainted Kit N (1:150) 3845

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

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

Kamikanbai Station Watarase Valley Railway : Baioudou N (1:150) Pre-Painted Kit ST-015-15C

Styrene Paper B4-1P 1mm Thickness 4-Pack : Kougen-do Material Non-scale SP-B4-1P

[Model] Telephone Box Amber Note: Kobaru Equivalent: Sakatsuo Unpainted Kit N (1:150) 3741

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

Tulik 5cm 10pcs : Koukoudo Material Non-scale TR-50

Kusabi Tension Scaffolding Note: Equivalent to Kobaru: Sakatsuo Unpainted Kit N (1:150) 3836

Athlete Doll Boxing Down A: Sakatsuo 3D printed finished product HO(1:87) 220

Athlete doll, short distance runner, goal A: Sakatsuo, 3D printed, complete, HO (1:87) 204