Issued Patents All Time
Showing 51–75 of 99 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6618532 | Optical transmission line | Eisuke Sasaoka, Shigeru Tanaka, Masayuki Nishimura, Shinji Ishikawa | 2003-09-09 |
| 6614976 | Optical fiber having a large positive dispersion | Kazuhiro Okamoto, Mitsuomi Hada, Shinjiro Hagihara, Morio Watanabe, Kohei Kobayashi | 2003-09-02 |
| 6606000 | Radio-frequency amplifier, radio-frequency module and communication device | Shigeyuki Mikami, Hiroyasu Matsuzaki | 2003-08-12 |
| 6567596 | Optical fiber suitable for use in WDM transmission system | Masashi Onishi, Yuji Kubo | 2003-05-20 |
| 6556758 | Optical fiber and optical transmission line including the same | — | 2003-04-29 |
| 6535677 | Dispersion-managed optical fiber, method of manufacturing the same, optical communication system including the same and optical fiber preform therefor | Shigeru Tanaka, Masayuki Nishimura, Shinji Ishikawa, Eisuke Sasaoka | 2003-03-18 |
| 6532331 | Single-mode optical fiber floor long haul transmission | Masashi Onishi, Eisuke Sasaoka | 2003-03-11 |
| 6526323 | Decentralized supervisory control system | Yasuyuki Miyajima, Yukihiko Tomizawa, Yoshihiro Ito, Tsuyoshi Kaneko, Akira Hirahara +1 more | 2003-02-25 |
| 6522821 | Dispersion-compensating optical fiber and optical transmission system including the same | Masaaki Hirano, Motonori Nakamura | 2003-02-18 |
| 6515554 | High-frequency circuit device and communication apparatus | Yohei Ishikawa, Kenichi Iio, Koichi Sakamoto | 2003-02-04 |
| 6498874 | Optical transmission line | Eisuke Sasaoka, Masayuki Nishimura | 2002-12-24 |
| 6490397 | Optical fiber | Masashi Onishi, Yuji Kubo | 2002-12-03 |
| 6487353 | Dispersion-shifted optical fiber | Eisuke Sasaoka, Masayuki Nishimura | 2002-11-26 |
| 6483970 | Fiber optic cable and optical transmission system | Masayuki Nishimura | 2002-11-19 |
| 6477306 | Dispersion-compensating optical fiber, and, optical transmission line and dispersion-compensating module respectively including the same | Masaaki Hirano | 2002-11-05 |
| 6466104 | High-frequency circuit module, filter, duplexer, and communication device | Sadao Yamashita | 2002-10-15 |
| 6446469 | MCVD method with GE depletion to form a single mode optical fiber | Yoshiaki Terasawa, Yuji Takahashi | 2002-09-10 |
| 6415089 | Optical fiber and optical transmission system including the same | Eisuke Sasaoka, Shigeru Tanaka | 2002-07-02 |
| 6400877 | Negative-dispersion optical fiber and optical transmission line incorporating the same | Masaaki Hirano | 2002-06-04 |
| 6374027 | Optical fiber transmission-line | Masashi Onishi, Masaaki Hirano | 2002-04-16 |
| 6369676 | High-frequency module | Koichi Sakamoto, Sadao Yamashita, Yasutaka Fujii, Kenichi Iio, Toshiro Hiratsuka | 2002-04-09 |
| 6360046 | Dispersion-shifted optical fiber | Eisuke Sasaoka, Akira Urano, Yoshio Yokoyama | 2002-03-19 |
| 6337942 | Optical fiber | Kazuhiro Okamoto, Mitsuomi Hada, Shinjiro Hagihara, Morio Watanabe, Kohei Kobayashi | 2002-01-08 |
| 6335995 | Dispersion-shifted fiber | Eisuke Sasaoka, Shinji Ishikawa | 2002-01-01 |
| 6326838 | Time sharing analog filters control method and magnetic disk system | Hiroshi Kimura, Takushi Nishiya, Takashi Nara, Seiichi Mita | 2001-12-04 |