Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5278217 | Water absorptive composition | Masanari Umeda, Yukio Sakuraba, Fumihiro Ashiya | 1994-01-11 |
| 5179611 | Optical fiber cable having a water absorptive member | Masanari Umeda, Yukio Sakuraba, Fumihiro Ashiya | 1993-01-12 |