Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5320987 | Optical glass | Tatsuya Senoo, Katsuhiko Yamaguchi | 1994-06-14 |
| 5300467 | Optical glass | Futoshi Ishizaki, Hiroshi Shishido, Katsuhiko Yamaguchi | 1994-04-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5320987 | Optical glass | Tatsuya Senoo, Katsuhiko Yamaguchi | 1994-06-14 |
| 5300467 | Optical glass | Futoshi Ishizaki, Hiroshi Shishido, Katsuhiko Yamaguchi | 1994-04-05 |