Koji Sumiyoshi
@kojisumiyoshi
I have worked as a mold designer and engineer. I took early retirement and now run an e-commerce and AI automation builder / consulting.
Hiroshima, Japan
Joined Oct 22, 2025
2
Following
0
Followers
17
pages
49
highlights
0
views
M
W
F
Apr
May
Jun
Total Days:
Total Weeks:
7-Days 📚
3-Weeks 📚
Show All