Issued Patents All Time
Showing 76–100 of 109 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6473550 | Optical fiber transmission-line | Masashi Onishi | 2002-10-29 |
| 6466721 | Dispersion compensating optical fiber and optical transmission line | Masao Tsukitani, Eiji Yanada, Yuichi Ohga | 2002-10-15 |
| 6449415 | Optical fiber and method of manufacturing the same | — | 2002-09-10 |
| 6415089 | Optical fiber and optical transmission system including the same | Takatoshi Kato, Shigeru Tanaka | 2002-07-02 |
| 6404950 | Dispersion-compensating module | Masao Tsukitani, Toshiaki Okuno, Shigeru Tanaka | 2002-06-11 |
| 6377740 | Dispersion Managed optical fiber transmission-line | Masashi Onishi | 2002-04-23 |
| 6360046 | Dispersion-shifted optical fiber | Takatoshi Kato, Akira Urano, Yoshio Yokoyama | 2002-03-19 |
| 6345140 | Optical fiber | Shigeru Tanaka | 2002-02-05 |
| 6343175 | Optical fiber with core containing chlorine and cladding containing fluorine and a method of manufacturing the same | — | 2002-01-29 |
| 6335995 | Dispersion-shifted fiber | Takatoshi Kato, Shinji Ishikawa | 2002-01-01 |
| 6333807 | Optical filter | Hitoshi Hatayama | 2001-12-25 |
| 6332055 | Optical attenuator, plane waveguide type optical circuit having the same and optical attenuation system having the same | Hitoshi Hatayama | 2001-12-18 |
| 6301419 | Dispersion-equalizing optical fiber and optical transmission line including the same | Masao Tsukitani, Shigeru Tanaka | 2001-10-09 |
| 6275638 | Dispersion-shifted fiber | Takatoshi Kato, Yoshio Yokoyama, Akira Urano | 2001-08-14 |
| 6269211 | Optical plane waveguide | Hitoshi Hatayama | 2001-07-31 |
| 6266467 | Optical fiber and optical transmission system including the same | Takatoshi Kato, Shigeru Tanaka | 2001-07-24 |
| 6256440 | Dispersion-shifted optical fiber | Takatoshi Kato, Masayuki Nishimura | 2001-07-03 |
| 6229946 | Dispersion-shifted optical fiber | Takatoshi Kato | 2001-05-08 |
| 6181858 | Dispersion-shifted fiber | Takatoshi Kato, Toshiaki Okuno | 2001-01-30 |
| 6169837 | Dispersion-flattened optical fiber | Takatoshi Kato, Hitoshi Hatayama, Masayuki Nishimura | 2001-01-02 |
| 6157754 | Optical transmission line | Takatoshi Kato | 2000-12-05 |
| 6072929 | Dispersion-shifted fiber | Takatoshi Kato, Shinji Ishikawa | 2000-06-06 |
| 5883990 | Low transmission loss optical fiber having a grating | Masumi Ito, Masayuki Nishimura | 1999-03-16 |
| 5695540 | Method of spacing fibers of optical fiber tapes and coupling the fibers | Hiroshi Suganuma, Tomoyuki Hattori, Hiroaki Takimoto, Hiroshi Yokota, Kenichi Matsushita | 1997-12-09 |
| 5627928 | Optical branching device | Yuji Matsuura, Hiroo Kanamori | 1997-05-06 |