Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5285059 | Method for controlling a tunable filter and an apparatus therefor | Kenji Nakamura | 1994-02-08 |
| 5223972 | Optical amplifiers, optical communication systems networks using the amplifier and integrated optical nodes including the amplifier | Michiyo Nishimura, Jun Nitta, Kenji Nakamura, Masao Majima | 1993-06-29 |
| 4552590 | Ferro-sintered alloys | Hiroyuki Endo, Masatoshi Harada, Tadao Hayasaka, Osamu Miyamoto | 1985-11-12 |
| 4422875 | Ferro-sintered alloys | Hiroyuki Endo, Masatoshi Harada, Tadao Hayasaka, Osamu Miyamoto | 1983-12-27 |