Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9567146 | Process for producing oxygen absorbing agent | Natsuko Matsushita, Hirokazu Tanaka, Tatsuo Iwai | 2017-02-14 |
| 9387973 | Oxygen absorbing agent | Hirokazu Tanaka, Tatsuo Iwai | 2016-07-12 |
| 9315383 | Oxygen absorbing agent and method for storing the same | Tomoharu Himeshima, Tatsuo Iwai | 2016-04-19 |