Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683480 | Method of bonding two prisms with a hydrolysis product | — | 1997-11-04 |
| 5676723 | Mold for forming an optical element | Keiji Hirabayashi | 1997-10-14 |
| 5662999 | Mold and method of manufacturing the same | Tetsuo Kuwabara, Masaaki Yokota | 1997-09-02 |