Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818047 | Polarized wave preserving fiber | Yuuetsu Takuma, Hiroshi Kajioka, Toshihide Tokunaga, Kohdo Yamada | 1989-04-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818047 | Polarized wave preserving fiber | Yuuetsu Takuma, Hiroshi Kajioka, Toshihide Tokunaga, Kohdo Yamada | 1989-04-04 |