Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5639168 | Ball bearing for supporting a spindle rotating at high speed | Kiyoshi Hirakawa | 1997-06-17 |
SN
Shingo Noguchi
Overall (1997): #77,960 of 185,788Top 45%
1
Patents 1997