Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9315383 | Oxygen absorbing agent and method for storing the same | Emi Ishihara, Tatsuo Iwai | 2016-04-19 |
| 6596192 | Oxygen absorbent composition absorbing water vapor | Nahomi Aoyama, Syoichi Nito, Kazuyuki Tomita, Junko Baba | 2003-07-22 |
| 6248258 | Oxygen absorbent | Kazuyuki Tomita, Tatsuo Iwai, Takayuki Watanabe, Junko Baba | 2001-06-19 |
| 6039892 | Oxygen absorbent composition | Kazumoto Nakagawa, Tatsuo Iwai, Takayuki Watanabe | 2000-03-21 |
| 6004477 | Oxygen absorption composition | Kazumoto Nakagawa, Tatsuo Iwai, Takayuki Watanabe, Nahomi Abe | 1999-12-21 |
| 5693399 | Vacuum heat insulator | Takayuki Watanabe | 1997-12-02 |