Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7166351 | Fire-retardant antistatic vinyl chloride resin moldings | Kenji Watanabe, Osamu Kouzui, Takahiro Yokohama | 2007-01-23 |
| 6316118 | Fire-retardant vinyl chloride resin molding | Kenji Watanabe | 2001-11-13 |