Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5799123 | Dispersion compensating fiber | Atsushi Umeda | 1998-08-25 |
| 5262365 | Quartz glass doped with rare earth element and production thereof | Kazunori Nakamura, Nobuyuki Kagi, Yasumasa Sasaki | 1993-11-16 |
| 4940851 | Membrane for use in X-ray mask and method for preparing the same | Toshihiko Maeda, Hiroyuki Nakae, Toshio Hirai, Tsuyoshi Masumoto | 1990-07-10 |