Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6900940 | Optical apparatus and device | Nobuaki Mitamura, Yuichi Kawahata | 2005-05-31 |
| 6862126 | TRANSMISSION WAVELENGTH CHARACTERISTICS VARIABLE OPTICAL ELEMENT, AND WAVELENGTH CHARACTERISTICS VARIABLE APPARATUS, OPTICAL AMPLIFIER, OPTICAL TRANSMISSION SYSTEM, AND CONTROL METHOD OF TRANSMISSION WAVELENGTH CHARACTERISTICS, USING SAME | Takashi Ishiwada, Hiroshi Nagaeda, Nobuaki Mitamura | 2005-03-01 |