KO

Kotaro ONA

📍 Kawagoe, JP: #2 of 47 inventorsTop 5%
Overall (2025): #108,623 of 469,880Top 25%
2
Patents 2025

Issued Patents 2025

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12421565 Low thermal expansion cast steel and method of production of same Naoki Sakaguchi, Haruyasu OHNO 2025-09-23
12421584 Low thermal expansion cast steel and method of producing same Haruyasu OHNO, Naoki Sakaguchi 2025-09-23