DD

Daiharu Doi

SI Sumitomo Metal Industries: 1 patents #630 of 1,462Top 45%
📍 Joetsu, JP: #178 of 239 inventorsTop 75%
Overall (All Time): #3,674,855 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5712046 Titanium ring for an electrodeposition drum and a method for its manufacture Toru Kamidaira, Seishi Ishiyama, Noriyasu Ikeda 1998-01-27