Issued Patents All Time
Showing 76–85 of 85 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7120344 | Two-dimensional photonic crystal cavity and channel add/drop filter | Takashi Asano, Yoshihiro Akahane | 2006-10-10 |
| 7046878 | Channel add/drop filter and channel monitor employing two-dimensional photonic crystal | Yoshihiro Akahane, Takashi Matsuura | 2006-05-16 |
| 7042014 | Semiconductor device | Atsushi Sugitatsu, Hitoshi Tada | 2006-05-09 |
| 6996319 | Two-dimensional photonic crystal optical resonator and optical reflector using interference between point defects | Takashi Asano | 2006-02-07 |
| 6738551 | Two-dimensional photonic crystal, and multiplexer/demultiplexer using the same | Alongkarn Chutinan, Daisuke Miyauchi, Yoshikazu Narumiya | 2004-05-18 |
| 6717167 | Apparatus for manufacturing three-dimensional photonic crystal structure by fusion bonding the aligned lattice layers formed on wafers | — | 2004-04-06 |
| 6479371 | Method and apparatus for manufacturing three-dimensional photonic crystal structure by fusion bonding the aligned lattice layers formed on wafers | — | 2002-11-12 |
| 5372658 | Disordered crystalline semiconductor | Akio Sasaki | 1994-12-13 |
| 4888783 | Semiconductor laser device | Keisuke Kojima, Kazuo Kyuma, Masaaki Kameya, Jun Ohta, Koichi Hammanaka | 1989-12-19 |
| 4847844 | Surface-emitting semiconductor laser device | Keisuke Kojima, Kazuo Kyuma | 1989-07-11 |