My works Differences in the 14-steps mechanism
Today was the delivery day for the 6-sun puzzle boxes that I have been working on since last week, so I came in the morn...
Hiroyuki Oka
My works 
Japanese culture The Value of the Maker’s Stamp
Last night was very cold. The house must have been very cold, because the heater took a long time to work properly. It r...
Japanese culture A New discovery with Disposable Hand Warmers
Today has been very cold since the morning. I went to the workshop in the afternoon and did some work. From today, many ...
Japanese culture New Year Decoration for 2026
It was very sunny from the morning today, although the wind was a little strong. During the day, there was good sunlight...
My works Stability of checkered pattern yosegi
Today was cloudy again, and it rained a little in the morning. I worked on the finishing process for the 6-sun puzzle bo...
My works Tools used to apply glue
It started raining this morning, and even at the highest, the temperature is only 7 degrees, so it is a very cold day. I...
Japanese culture The beauty and danger of Mt. Fuji
Today was another cold day, but it was sunny. It looks like it will start raining tonight, so I wanted to finish attachi...
My works Woods used for Checkered yosegi
Today marks the start of a new week, and many jobs in Japan will probably enter the year-end and New Year holidays after...
Japanese culture The Legendary Yosegi designs
Because I was out for a long time yesterday and couldn’t make much progress, I worked on the 6-sun boxes from the mornin...
Japanese culture Mokuzōgan-wooden inlay
Today started with rainy weather. I came to my workshop a little later than usual and did a bit of work. I also had some...