Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8144398 | Polarizing element | Yoshitaka Yoneda, Toshiaki Sonehara | 2012-03-27 |
| 8130447 | Polarization element | Toshiaki Sonehara, Hideo Kobayashi, Mitsuhiro Kureishi | 2012-03-06 |
| 8064135 | Polarization element | Toshiaki Sonehara, Seiichi Yokoyama | 2011-11-22 |
| 7961394 | Polarizing glass, optical isolator, and method for producing polarizing glass | Yoshitaka Yoneda, Seiichi Yokoyama | 2011-06-14 |
| 4980788 | Thin-film-type magnetic head device | Masamichi Yamada, Katsuo Konishi | 1990-12-25 |
| 4201964 | Elastic surface wave device | Yoshihiko Noro, Katashi Hazama, Jun Yamada, Hitoshi Yanagihara | 1980-05-06 |
| 4188596 | Elastic surface wave device | — | 1980-02-12 |