Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5332700 | High dispersion optical glass | Katsuhiko Yamaguchi, Naoyuki Goto, Hisao Yatsuda, Goro Enomoto, Hideo Yasui | 1994-07-26 |
| 5300467 | Optical glass | Muneo Nakahara, Hiroshi Shishido, Katsuhiko Yamaguchi | 1994-04-05 |