My works Square puzzle box
21-Jul-2025Today is a national holiday in Japan called “Marine Day.” Since many kids in Japan started their summer vacat...
Hiroyuki Oka
My works 
My works MDF panels
18-Jul-2025It was sunny from the morning today, and finally, the rainy season has ended in our area. While the constant ...
My works Gluing the panels
17-Jul-2025This afternoon, the heavy rain finally stopped. In the morning, the humidity was very high, so I couldn’t do ...
My works 18-step aruki panels
16-Jul-2025It was rainy again this morning, but in our area, it didn’t rain as heavily as the forecast said yesterday. T...
My works Rainy day…
15-Jul-2025As the forecast predicted, it started raining this morning.Maybe it’s because of the typhoon, but the humidit...
My works Small cube puzzle boxes
14-Jul-2025It was mostly cloudy from the morning today. A typhoon seems to be approaching, and it’s expected to rain fro...
My works Modern design?
11-Jul-2025Today, I worked on attaching and preparing the side panels for the 4-sun 18-step puzzle box with the original...
My works 18-steps aruki panels
10-Jul-2025Today, I was torn between working on the finishing process for the 2.5-sun box or making the Aruki panels (mo...
My works 4-sun 18-steps puzzle box
Today, I started working on new 4-sun puzzle boxes.Since the temperature is high and I can't continue the finishing work...
My works New yosegi pattern
08-Jul-2025Another hot day continues today...😂In the morning, I prepared the outer panel for the Aruki (moving panel) si...