My works Greeting
Hello everyone. My name is Hiroyuki Oka. I'm a Japanese puzzle box craftsman. I was born in Odawara City, Japan, and hav...
My works
My works 
My works Finish coating 2
Jul 31, 2024*From here, the past articles are reposted from another site (japanesepuzzlebox.jp) where I had been writing...
My works Finish coating
Jul 30, 2024Today, I am sanding several Japanese puzzle boxes with sandpaper for the finish coating (painting). These ar...
My works 2 sun cube 7 steps
Jul 29, 2024I have started making 2 sun cube 7-step puzzle boxes. This time, I'm making more than 50 of them, including ...
My works Hanko
Jul 26, 2024Currently, my puzzle boxes are stamped with this seal (Hanko). In the past, I used other designs, but for th...