Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8188646 | Fluorescent lamp and base with press-fit hole | Mitsuhiro Ikeda, Takashi Osawa, Koji Kokufu | 2012-05-29 |
| 7456559 | Fluorescent lamp and ferrule | Mitsuhiro Ikeda, Takashi Osawa, Koji Kokufu | 2008-11-25 |