Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7273652 | Hollow carbon fiber and production method | Shinji Takeda, Noriyuki Taguchi, Osamu Hirai | 2007-09-25 |
| 6743500 | Hollow carbon fiber and production method | Shinji Takeda, Noriyuki Taguchi, Osamu Hirai | 2004-06-01 |
| 6641792 | Hollow carbon fiber and production method | Shinji Takeda, Noriyuki Taguchi, Osamu Hirai | 2003-11-04 |