Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6431658 | Bicycle hub | Masao Nakajima | 2002-08-13 |
| 6409282 | Bicycle hub | Masao Nakajima | 2002-06-25 |
TO
Takashi Ohtsuji
Overall (All Time): #2,215,353 of 4,157,543Top 55%
2
Patents All Time