Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6476975 | Mother glass composition for graded index lens | Shigeo Kittaka, Tadashi Koyama | 2002-11-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6476975 | Mother glass composition for graded index lens | Shigeo Kittaka, Tadashi Koyama | 2002-11-05 |