Issued Patents All Time
Showing 26–50 of 77 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6791744 | Raman amplification optical fiber, optical fiber coil, raman amplifier, and optical communication system | Eisuke Sasaoka, Motoki Kakui, Toshiki Tanaka, Takao Naito | 2004-09-14 |
| 6766088 | Optical fiber and method for making the same | Takemi Hasegawa, Eisuke Sasaoka, Masayuki Nishimura | 2004-07-20 |
| 6748152 | Optical transmission system | Yuji Kubo, Takatoshi Kato | 2004-06-08 |
| 6697559 | Optical fiber and method of making the same | Masaaki Hirano, Yoshio Yokoyama | 2004-02-24 |
| 6661954 | Optical transmission line including a connected part of optical fibers and connecting method | Eisuke Sasaoka, Takemi Hasegawa, Shinji Ishikawa | 2003-12-09 |
| 6661958 | Optical fiber and nonlinear optical fiber, optical amplifier and wavelength converter using the same, and method of making optical fiber | Masaaki Hirano, Toshiaki Okuno | 2003-12-09 |
| 6650821 | Optical device and a making method thereof | Yasushi Koyano, Eisuke Sasaoka, Shigeru Tanaka, Kohei Kobayashi, Kenji Tamano +1 more | 2003-11-18 |
| 6636677 | Optical fiber | Takemi Hasegawa, Eisuke Sasaoka, Masayuki Nishimura | 2003-10-21 |
| 6628872 | Dispersion compensator and optical transmission system | Mitsuomi Hada, Kohei Kobayashi, Kenji Tamano, Keiichiro Fukuda | 2003-09-30 |
| 6567596 | Optical fiber suitable for use in WDM transmission system | Takatoshi Kato, Yuji Kubo | 2003-05-20 |
| 6567597 | Optical fiber, method of making the same, and optical transmission system including the same | Eisuke Sasaoka, Katsuya Nagayama, Kaoru Okuno, Kazuya Kuwahara | 2003-05-20 |
| 6562261 | Injection molding method and control system for injection molding machines | — | 2003-05-13 |
| RE38086 | Dispersion compensating fiber and optical transmission system including the same | Hiroo Kanamori, Masayuki Nishimura, Tomonori Kashiwada, Yasushi Koyano | 2003-04-22 |
| 6546180 | Coiled optical assembly and fabricating method for the same | Yasushi Koyano, Eisuke Sasaoka, Shigeru Tanaka, Kohei Kobayashi | 2003-04-08 |
| 6532331 | Single-mode optical fiber floor long haul transmission | Takatoshi Kato, Eisuke Sasaoka | 2003-03-11 |
| 6526209 | Optical fiber having improved optics and structure | Takemi Hasegawa, Eisuke Sasaoka, Masayuki Nishimura | 2003-02-25 |
| 6519403 | Optical fiber and method of making the same | Masaaki Hirano, Yoshio Yokoyama | 2003-02-11 |
| 6502428 | Manufacturing method of an optical fiber | Kazuya Kuwahara, Katsuya Nagayama | 2003-01-07 |
| 6490397 | Optical fiber | Takatoshi Kato, Yuji Kubo | 2002-12-03 |
| 6483633 | Raman amplifier | Toshiaki Okuno | 2002-11-19 |
| 6480312 | Dispersion compensating system used for bi-directional optical communication | Toshiaki Okuno, Masayuki Nishimura | 2002-11-12 |
| 6474108 | Fiber preform method with a hot drill-in step for a Ge-doped tube and an F-doped rod | Yoshio Yokoyama, Masaaki Hirano | 2002-11-05 |
| 6473550 | Optical fiber transmission-line | Eisuke Sasaoka | 2002-10-29 |
| 6427044 | Optical fiber | Eiji Yanada, Yuichi Ohga | 2002-07-30 |
| 6413453 | Motor-driven mold clamping device and mold clamping method | — | 2002-07-02 |