Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5694510 | Tub-aggregated optical cable | Hiroaki Sano, Hiroki Ishikawa, Shigeru Tanaka, Osamu Kawata | 1997-12-02 |
| 5661836 | Optical cable and manufacturing method thereof | Hiroaki Sano, Hiroki Ishikawa, Shigeru Tanaka, Nobumasa Nirasawa, Kenji Morita +1 more | 1997-08-26 |
| 5638478 | Optical fiber cable having a grooved spacer formed with one or more SZ-spiral grooves on its outer circumference along the longitudinal direction of the spacer the inverting angle of each groove being at least 180.degree. | Daisuke Iwakura, Akihiro Otake, Shigekazu Hayami, Shigeru Tomita | 1997-06-10 |