Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6631233 | Graded index type optical fibers and method of making the same | Tomoyoshi Yamashita, Yasuteru Tahara | 2003-10-07 |
| 6584256 | Optical fiber cable and optical fiber cable with plug | Katsuhiko Shimada, Takeshi Kitayama, Takara Yamamoto, Hiroe Kubo, Jun Okumura | 2003-06-24 |
| 6529665 | Refractive index profile type optical fiber | Tomoyoshi Yamashita, Haruko Miyauchi, Yasushi Kawaharada, Norizi Oishi | 2003-03-04 |