Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4911898 | Zeolite particles retaining silver ions having antibacterial properties | Zenji Hagiwara, Shigetaka Hoshino, Hiroo Ishino, Saburo Nohara, Kenichi Tagawa | 1990-03-27 |
| 4911899 | Zeolite particles having bacteriocidal properties | Zenji Hagiwara, Shigetaka Hoshino, Hiroo Ishino, Saburo Nohara, Kenichi Tagawa | 1990-03-27 |
| 4775585 | Polymer article having an antibacterial property containing zeolite particles therein and the processes for producing same | Zenji Hagiwara, Shigetaka Hoshino, Hiroo Ishino, Saburo Nohara, Kenichi Tagawa | 1988-10-04 |