Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7108897 | Dye type polarizing plate | Kumiko Ishii, Yoshitaka Kajiwara, Toru Tabei | 2006-09-19 |
| 6790490 | Dye type polarizing plate | Kumiko Ishii, Yoshitaka Kajiwara, Toru Tabei | 2004-09-14 |