Issued Patents All Time
Showing 76–99 of 99 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6323740 | High-frequency circuit device and communication apparatus | Yohei Ishikawa, Kenichi Iio, Koichi Sakamoto | 2001-11-27 |
| 6295843 | Method of making a single-mode optical fiber with multiple concentric core portions by using an outside vapor deposition process | Yoshiaki Terasawa, Yuji Takahashi | 2001-10-02 |
| 6275638 | Dispersion-shifted fiber | Eisuke Sasaoka, Yoshio Yokoyama, Akira Urano | 2001-08-14 |
| 6266467 | Optical fiber and optical transmission system including the same | Eisuke Sasaoka, Shigeru Tanaka | 2001-07-24 |
| 6262641 | Frequency multiplier, dielectric transmission line device and radio device | Koichi Sakamoto, Atsushi Saitoh | 2001-07-17 |
| 6256440 | Dispersion-shifted optical fiber | Eisuke Sasaoka, Masayuki Nishimura | 2001-07-03 |
| 6229946 | Dispersion-shifted optical fiber | Eisuke Sasaoka | 2001-05-08 |
| 6204739 | Dielectric resonant apparatus | Koichi Sakamoto, Kenichi Iio, Sadao Yamashita | 2001-03-20 |
| 6188360 | Radio-frequency radiation source, radio frequency radiation source array, antenna module, and radio equipment | Koichi Sakamoto, Kenichi Iio, Yohei Ishikawa | 2001-02-13 |
| 6181858 | Dispersion-shifted fiber | Toshiaki Okuno, Eisuke Sasaoka | 2001-01-30 |
| 6169837 | Dispersion-flattened optical fiber | Hitoshi Hatayama, Eisuke Sasaoka, Masayuki Nishimura | 2001-01-02 |
| 6157754 | Optical transmission line | Eisuke Sasaoka | 2000-12-05 |
| 6072929 | Dispersion-shifted fiber | Eisuke Sasaoka, Shinji Ishikawa | 2000-06-06 |
| 6062046 | Method of making a single-mode optical fiber with multiple concentric core portions including the RIT process | Yoshiaki Terasawa, Yuji Takahashi | 2000-05-16 |
| 5946439 | Single-mode optical fiber | Yoshiaki Terasawa, Yosuke Yamazaki, Fumiyoshi Ohkubo | 1999-08-31 |
| 5913005 | Single-mode optical fiber | Yoshiaki Terasawa, Fumiyoshi Ohkubo, Yosuke Yamazaki | 1999-06-15 |
| 5852701 | Dispersion-shifted fiber | Yoshiyuki Suetsugu, Masayuki Nishimura | 1998-12-22 |
| 5822488 | Single-mode optical fiber with plural core portions | Yoshiaki Terasawa, Yuji Takahashi | 1998-10-13 |
| 5793949 | Information processing unit, device and method | Kenichi Yusuki, Kenji Hoshi, Kiyoshi Sudo | 1998-08-11 |
| 5732178 | Single-mode optical fiber | Yoshiaki Terasawa, Shinji Ishikawa | 1998-03-24 |
| 5721800 | Dispersion-shifted fiber | Yoshiyuki Suetsugu, Masayuki Nishimura | 1998-02-24 |
| 5521403 | Field-effect transistor having a graded contact layer | Masanori Usui, Hiroyuki Kano, Tadashi Shibata | 1996-05-28 |
| 5128639 | Phase shifter utilizing hybrid element | Hiroyuki Ueda, Yuichi Tanaka | 1992-07-07 |
| 4925810 | Compound semiconductor device and a method of manufacturing the same | Hiroyuki Kano, Masafumi Hashimoto | 1990-05-15 |