Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4769576 | Metal vapor discharge lamp | Masachika Ohyama, Mitsuo Narita | 1988-09-06 |
| 4745335 | Magnesium vapor discharge lamp | Masachika Ohyama, Mitsuo Narita | 1988-05-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4769576 | Metal vapor discharge lamp | Masachika Ohyama, Mitsuo Narita | 1988-09-06 |
| 4745335 | Magnesium vapor discharge lamp | Masachika Ohyama, Mitsuo Narita | 1988-05-17 |