Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6960640 | Composition for optical material | Yuichi Yoshimura, Motoharu Takeuchi | 2005-11-01 |
| 6039892 | Oxygen absorbent composition | Tomoharu Himeshima, Tatsuo Iwai, Takayuki Watanabe | 2000-03-21 |
| 6004477 | Oxygen absorption composition | Tatsuo Iwai, Takayuki Watanabe, Nahomi Abe, Tomoharu Himeshima | 1999-12-21 |