Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8916946 | Optical semiconductor device | Yoshiyuki Doi, Yoshifumi Muramoto | 2014-12-23 |
| 8704322 | Optical semiconductor device | Yoshiyuki Doi, Yoshifumi Muramoto | 2014-04-22 |
| 8545111 | Optical module | Yoshiyuki Doi, Ikuo Ogawa, Akimasa Kaneko, Yasuaki Tamura, Yuichi Suzuki | 2013-10-01 |
| 7397977 | Wave transmission medium and waveguide circuit | Toshikazu Hashimoto, Ikuo Ogawa, Takeshi Kitagawa, Senichi Suzuki, Masahiro Yanagisawa +8 more | 2008-07-08 |