Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8983239 | Optical control element having a plurality of optical control portions | Masayuki Ichioka, Junichiro Ichikawa | 2015-03-17 |
| 8265443 | Optical waveguide device | Katsutoshi Kondou, Junichiro Ichikawa | 2012-09-11 |
| 6149499 | Polishing apparatus and polishing method | — | 2000-11-21 |