Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8268421 | Packaging bag and drying agent with moisture absorption indicator function | Tatsuya Ogawa, Hiroshi Koyama, Shinichi Koizumi | 2012-09-18 |
| 7887894 | Packaging bag and drying agent with moisture absorption indicator function | Tatsuya Ogawa, Hiroshi Koyama, Shinichi Koizumi | 2011-02-15 |
| 7743642 | Moisture absorbent material with indicator function, humidity indicator and packaging bag | Tatsuya Ogawa, Shinichi Koizumi, Saori Takahashi | 2010-06-29 |