Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D494054 | Coupling device | Keiji Mine, Hiroshi Nakagawa | 2004-08-10 |
| 6760517 | Optical coupling device for two-way optical communications | Keiji Mine, Hiroshi Nakagawa | 2004-07-06 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D494054 | Coupling device | Keiji Mine, Hiroshi Nakagawa | 2004-08-10 |
| 6760517 | Optical coupling device for two-way optical communications | Keiji Mine, Hiroshi Nakagawa | 2004-07-06 |