Issued Patents All Time
Showing 51–75 of 155 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6744989 | Optical transmission system, its method, and optical amplification transmission line | Takehiro Tsuritani, Yuichi Yamada, Noboru Edagawa | 2004-06-01 |
| 6728437 | Pumping light generator and fiber Raman amplifier | Noboru Edagawa | 2004-04-27 |
| 6637398 | Engine for motorcycles | Ryo Kubota | 2003-10-28 |
| 6638564 | Method of electroless plating and electroless plating apparatus | Yuji Segawa, Akira Yoshio, Katsumi Watanabe, Shuzo Sato | 2003-10-28 |
| 6640026 | Optical multiplexer and demultiplexer | Takehiro Tsuritani | 2003-10-28 |
| 6614588 | Optical amplifier having various control circuitry | Aritomo Uemura, Kiwami Matsushita, Yukio Horiuchi, Noboru Edagawa, Shu Yamamoto +1 more | 2003-09-02 |
| 6595746 | Mixed flow pump | Akira Goto, Kosuke Ashihara, Takaki Sakurai, Mehrdad Zangeneh | 2003-07-22 |
| 6594428 | Dispersion compensating optical transmission line and system | Keiji Tanaka, Takehiro Tsuritani, Noboru Edagawa | 2003-07-15 |
| 6556325 | Optical repeater monitoring system and a method thereof | Yukio Horiuchi, Shu Yamamoto, Shigeyuki Akiba | 2003-04-29 |
| 6551472 | Electroforming apparatus | Eiji Saito, Minoru Tazoe, Makoto Ito, Yuji Segawa | 2003-04-22 |
| 6549711 | Soliton pulse compression optical fiber and method for making soliton pulse compression optical fiber | Tadakatsu Shimada, Kazuo Koya, Noboru Edagawa, Itsuro Morita | 2003-04-15 |
| 6532091 | Optical digital regenerator | Tetsuya Miyazaki, Tomohiro Otani, Noboru Edagawa, Shu Yamamoto | 2003-03-11 |
| 6519078 | Raman amplifier | Takayuki Miyakawa, Noboru Edagawa | 2003-02-11 |
| 6516110 | Optical cross-connector | Michiaki Hayashi, Kazuho Ohara, Hideaki Tanaka | 2003-02-04 |
| 6515793 | Optical waveform shaper | Noboru Edagawa | 2003-02-04 |
| 6459518 | Optical transmitting apparatus | Noboru Edagawa, 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 |
| 6409558 | Turbocharged engine structure for small-sized boat | Yoshitsugu Gokan, Naoto Hara | 2002-06-25 |
| 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 |
| 6188508 | Control signal superimposer | Yukio Horiuchi, Shu Yamamoto, Shigeyuki Akiba | 2001-02-13 |
| 6181449 | Wavelength division multiplexed optical processing device and optical communication transmission path | Hidenori Taga, Kaoru Imai, Shu Yamamoto, Shigeyuki Akiba | 2001-01-30 |
| 6028695 | Optical modulating apparatus | Aritomo Uemura, Takashi Mizuochi, Katsuhiro Shimizu, Kiwami Matsushita, Tadayoshi Kitayama +2 more | 2000-02-22 |
| 6021235 | Wavelength-division multiplexing optical transmission system | Shu Yamamoto, Hidenori Taga, Noboru Edagawa, Shigeyuki Akiba | 2000-02-01 |
| 6005702 | Optical transmission device, WDM optical transmission apparatus, and optical transmission system using return-to-zero optical pulses | Itsuro Morita, Noboru Edagawa, Shu Yamamoto, Shigeyuki Akiba | 1999-12-21 |
| 5978529 | Gain equalizer and optical amplifying transmission line | Hidenori Taga, Noriyuki Takeda, Shu Yamamoto, Shigeyuki Akiba | 1999-11-02 |