Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6582128 | Ball bearing and bearing device | Yuji Nakano, Shinichi Natsumeda | 2003-06-24 |
YT
Yoshiyuki Tsuruga
Overall (All Time): #3,515,142 of 4,157,543Top 85%
1
Patents All Time