Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7072554 | Optical fiber and optical fiber cable using the same | Hirohito Watanabe, Tsuyoshi Shimomichi, Keiji Ohashi | 2006-07-04 |
| 7068908 | Resin liquid for optical fiber coating layer | Tsuyoshi Shimomichi, Keiji Ohashi | 2006-06-27 |