My works Finishing process
07-Jul-2025The square-type Knock Box that I’ve been working on since last week has now reached the finishing stage.Today...
Hiroyuki Oka
My works 
My works Two types of panels
04-Jul-2025Today, I mainly worked on attaching the panels for two types of puzzle boxes—the Knock Box and the 2.5-sun bo...
My works Ichimatsu panels
03-Jul-2025We’ve been seeing news about extreme heatwaves around the world, and here in Japan, the hot days continue as ...
My works Natural wood panels
02-Jul-2025Today, I started by continuing work on the Knock Box-square type. As a follow-up to the internal structure I ...
My works 2.5-sun Japanese puzzle box
01-Jul-2025It’s July starting today. That means half of 2025 is already over! But it seems like the second half of the y...
My works Assembly of aruki panels
30-Jun-2025It’s the start of a new week, but the hot weather has been continuing since the weekend. In western Japan, it...
My works 4-steps aruki panels
27-Jun-2025This morning, the weather was clear and the humidity had dropped, so I worked on making the Aruki panels (mov...
My works Processing the kannuki (slide key)
26-Jun-2025Yesterday, I had to go out unexpectedly in the afternoon, so I couldn’t finish the final work on the 5-sun 36...
My works Natural wood side panels
25-Jun-2025Since last night, we’ve had steady rain, and this morning the humidity reached its highest level. It was a bi...
My works The knock square box
24-Jun-2025Today, for the first time in a while, we had rainy weather.All morning I was debating whether to continue the...