Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5908702 | Ultraviolet ray absorbing colored glass | Toru Kudo, Mizuki Sasage, Shiro Tanii, Takashi Kijima | 1999-06-01 |
| 5763342 | Ultraviolet ray absorbing colored glass | Toru Kudo, Shiro Tanii | 1998-06-09 |