Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8494378 | Synchronous optical signal generating device and synchronous optical signal generating method | Shigehiro Takasaka, Yasuyuki Ozeki | 2013-07-23 |
| 7869014 | System for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber | Masateru Tadakuma, Yu Mimura, Osamu Aso, Takeshi Nakajima, Katsutoshi Takahashi | 2011-01-11 |
| 7567378 | Raman amplifying device and Raman amplifying system | Koji Fujimura, Masami Ikeda | 2009-07-28 |
| 7535629 | Method and apparatus for controlling multiple-wavelength-pumped Raman amplifier and computer product | Koji Fujimura, Takeshi Nakajima, Shu Namiki | 2009-05-19 |
| 7424191 | System for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber | Masateru Tadakuma, Yu Mimura, Osamu Aso, Takeshi Nakajima, Katsutoshi Takahashi | 2008-09-09 |
| 7408701 | Multi-frequency light source | Osamu Aso, Shunichi Matushita, Masateru Tadakuma | 2008-08-05 |
| 7355786 | Raman amplifying device and raman amplifying system | Koji Fujimura, Masami Ikeda | 2008-04-08 |
| 7262903 | Method and apparatus for controlling multiple-wavelength-pumped raman amplifier and computer product | Koji Fujimura, Takeshi Nakajima, Shu Namiki | 2007-08-28 |
| 7146085 | Method and system for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber, method of manufacturing optical fibers, method of measuring wavelength-dispersion distribution, method of compensating for measurement errors, and method of specifying conditions of measurement | Masateru Tadakuma, Yu Mimura, Osamu Aso, Takeshi Nakajima, Katsutoshi Takahashi | 2006-12-05 |
| 7057800 | Raman amplifying device and raman amplifying system | Koji Fujimura, Masami Ikeda | 2006-06-06 |
| 7054057 | Multi-frequency light source | Osamu Aso, Shunichi Matushita, Masateru Tadakuma | 2006-05-30 |
| 7003202 | Method and system for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber, method of manufacturing optical fibers, method of measuring wavelength-dispersion distribution, method of compensating for measurement errors, and method of specifying conditions of measurement | Masateru Tadakuma, Yu Mimura, Osamu Aso, Takeshi Nakajima, Katsutoshi Takahashi | 2006-02-21 |
| 6920263 | Optical pulse generator | Masateru Tadakuma, Osamu Aso, Shunichi Matsushita, Shu Namiki | 2005-07-19 |
| 6892015 | Optical pulse waveform conversion | Masateru Tadakuma, Osamu Aso | 2005-05-10 |
| 6831775 | Method and apparatus for wavelength conversion | Shunichi Matsushita, Osamu Aso | 2004-12-14 |
| 5347242 | Superconducting accelerating tube comprised of half-cells connected by ring shaped elements | Takashi Shimano, Shinichi Mukoyama | 1994-09-13 |
| 5239157 | Superconducting accelerating tube and a method for manufacturing the same | Shinichi Mukoyama, Takashi Shimano | 1993-08-24 |