Issued Patents All Time
Showing 1–25 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7558482 | Method for dynamically establishing logical link in PON systems and an optical network unit for the method | Keiji Tanaka | 2009-07-07 |
| 7551854 | Method to provide caller's location in IP phone system, optical transmission system, optical connector, and optical network unit | Yukio Horiuchi | 2009-06-23 |
| 6867908 | Optical amplifier having various control circuitry | Aritomo Uemura, Kiwami Matsushita, Yukio Horiuchi, Masatoshi Suzuki, Shu Yamamoto +1 more | 2005-03-15 |
| 6775478 | Optical TDM multiplexer, optical TDM demultiplexer, WDM/TDM converter and TDM/WDM converter | Masatoshi Suzuki | 2004-08-10 |
| 6768872 | Optical transmission system, optical transmission line and optical transmitter | Takehiro Tsuritani, Keiji Tanaka, Masatoshi Suzuki | 2004-07-27 |
| 6754420 | Optical fiber transmission line | Takehiro Tsuritani, Keiji Tanaka, Masatoshi Suzuki | 2004-06-22 |
| 6748178 | Optical transmission line | Takayuki Miyakawa, Masatoshi Suzuki | 2004-06-08 |
| 6744990 | WDM optical transmission system and an optical transmission line thereof | Masatoshi Suzuki, Noriyuki Takeda, Hideaki Tanaka, Shinichi Nakagawa, Hidenori Taga +1 more | 2004-06-01 |
| 6744989 | Optical transmission system, its method, and optical amplification transmission line | Takehiro Tsuritani, Yuichi Yamada, Masatoshi Suzuki | 2004-06-01 |
| 6728437 | Pumping light generator and fiber Raman amplifier | Masatoshi Suzuki | 2004-04-27 |
| 6614588 | Optical amplifier having various control circuitry | Aritomo Uemura, Kiwami Matsushita, Yukio Horiuchi, Masatoshi Suzuki, Shu Yamamoto +1 more | 2003-09-02 |
| 6594428 | Dispersion compensating optical transmission line and system | Keiji Tanaka, Takehiro Tsuritani, Masatoshi Suzuki | 2003-07-15 |
| 6549711 | Soliton pulse compression optical fiber and method for making soliton pulse compression optical fiber | Tadakatsu Shimada, Kazuo Koya, Masatoshi Suzuki, Itsuro Morita | 2003-04-15 |
| 6532091 | Optical digital regenerator | Tetsuya Miyazaki, Tomohiro Otani, Masatoshi Suzuki, Shu Yamamoto | 2003-03-11 |
| 6519078 | Raman amplifier | Takayuki Miyakawa, Masatoshi Suzuki | 2003-02-11 |
| 6515793 | Optical waveform shaper | Masatoshi Suzuki | 2003-02-04 |
| 6504638 | Optical amplifying transmission system and optical amplifier | Keiji Tanaka, Hidenori Taga, Shu Yamamoto | 2003-01-07 |
| 6459518 | Optical transmitting apparatus | Masatoshi Suzuki, Hidenori Taga, Shu Yamamoto | 2002-10-01 |
| 6445478 | Optical pulse position detecting circuit and an optical pulse generating apparatus and their methods | Katsuhiro Shimizu, Takashi Mizuochi, Takeshi Komiya, Kiwami Matsushita, Tadayoshi Kitayama +4 more | 2002-09-03 |
| 6331907 | Multi-wavelength light source and discrete-wavelength-variable light source | Tetsuya Miyazaki, Shu Yamamoto | 2001-12-18 |
| 6285477 | Multi-wavelength light source and discrete-wavelength-variable light source | Tetsuya Miyazaki, Shu Yamamoto | 2001-09-04 |
| 6236488 | Optical pulse position detecting circuit and an optical pulse generating apparatus and their methods | Katsuhiro Shimizu, Takashi Mizuochi, Takeshi Komiya, Kiwami Matsushita, Tadayoshi Kitayama +4 more | 2001-05-22 |
| 6219163 | Multi-wavelength light source and discrete-wavelength-variable light source | Tetsuya Miyazaki, Shu Yamamoto | 2001-04-17 |
| 6215566 | Multi-wavelength light source and discrete-wavelength-variable light source | Tetsuya Miyazaki, Shu Yamamoto | 2001-04-10 |
| 6188510 | Optical amplifying transmission system and optical amplifying repeater | Shu Yamamoto, Shigeyuki Akiba | 2001-02-13 |