Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5366939 | Gradient index optical element | Yuko Kurasawa, Morinao Fukuoka | 1994-11-22 |
| 5356840 | Distributed index of refraction type optical element and method of making the same | — | 1994-10-18 |
| 5349473 | Gradient index optical element | Yuko Kurasawa, Morinao Fukuoka | 1994-09-20 |