Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5757110 | Electrical discharge lamp with ultraviolet filtering globe having rear end part supported insulating base | Masakazu Nagasawa, Yukio Wakimizu | 1998-05-26 |
| 5463270 | Insulating base for discharge lamp device | Yukio Wakimizu, Masakazu Nagasawa | 1995-10-31 |
| 5432399 | Discharge lamp apparatus | Masakazu Nagasawa, Yukio Wakimizu, Masami Handa | 1995-07-11 |