Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5502589 | Optical communication systems and optical nodes for use therein | Noboru Yamamoto, Kenji Nakamura | 1996-03-26 |
| 5479544 | Optical receiver, optical semiconductor apparatus, and optical communication system utilizing the same | Takeo Ono, Toshihiko Ouchi | 1995-12-26 |
| 5414549 | Semiconductor optical amplifying apparatus | Michiyo Nishimura, Jun Nitta, Kenji Nakamura, Toru Nakata | 1995-05-09 |
| 5396360 | Wavelength-multiplexed optical communication system and optical amplifier used therefor | — | 1995-03-07 |
| 5369515 | Node for loop-type optical LAN and a loop-type optical LAN using the same | — | 1994-11-29 |
| 5343314 | Optical fiber communication method and multimedia optical fiber network using the same | Kenji Nakamura, Noboru Yamamoto | 1994-08-30 |
| 5309275 | Semiconductor optical amplifying apparatus | Michiyo Nishimura, Jun Nitta, Kenji Nakamura, Toru Nakata | 1994-05-03 |
| 5223972 | Optical amplifiers, optical communication systems networks using the amplifier and integrated optical nodes including the amplifier | Michiyo Nishimura, Jun Nitta, Kenji Nakamura, Tohru Nakata | 1993-06-29 |
| 5144466 | Optical fiber communication method and multimedia optical fiber network using the same | Kenji Nakamura, Noboru Yamamoto | 1992-09-01 |