Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5882808 | Anti-bacterial and anti-fungal ceramic product | Takashi Oku, Keijiro Shigeru, Takako Yazawa, Tomohiko Iijima | 1999-03-16 |
| 5807641 | Anti-bacterial and anti-fungal glaze composition for ceramic products | Takashi Oku, Keijiro Shigeru, Takako Yazawa, Tomohiko Iijima | 1998-09-15 |