Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6436728 | Method for making an optical waveguide substrate | Hiroshi Aoi, Masaaki Shirota, Seiki Ejima | 2002-08-20 |
| 6437304 | Steam generator | Kazufumi Ushijima, Tadatomo Ohnoda | 2002-08-20 |
| 6402973 | Preparation of silicon substrate | Yasushi Maeda, Masaharu Horiguchi, Seiki Ejima | 2002-06-11 |