Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5743787 | Method for polishing optical fiber end surface | Keiichi Ishiyama, Kohji Minami, Hiroyuki Tokita, Nobuo Suzuki | 1998-04-28 |
| 4893889 | Optical attenuator | Akira Sugiyama, Yoshio Kashima, Ikuo Betsui, Nobuo Suzuki | 1990-01-16 |