Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6696376 | Zirconia containing ceramic ball, method for manufacturing same, ceramic ball bearing and check valve | Tetsuji Yogo | 2004-02-24 |
TN
Tomonori Niwa
Overall (2004): #96,735 of 270,089Top 40%
1
Patents 2004