Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE35222 | Optical fiber component optical coupler and method of producing thereof | Sumio Hoshino, Masumi Ito, Masayuki Shigematsu, Hiroo Kanamori | 1996-04-30 |
| 5202947 | Optical fiber component optical coupler and method of producing thereof | Sumio Hoshino, Masumi Ito, Masayuki Shigematsu, Hiroo Kanamori | 1993-04-13 |