Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6723423 | Transparent sheet or film | Hiroshi Sakurai, Takeshi Takahashi | 2004-04-20 |
| 6713170 | Hard coating material and film comprising the same | Takeshi Takahashi, Yoshitane Watanabe, Keitaro Suzuki, Osamu Tanegashima, Yoshinari Koyama | 2004-03-30 |