Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6570342 | Fluorescent lamp and power converter | Kazuaki Okubo, Masanori Shimizu, Takeshi Arakawa, Yoko Shimomura | 2003-05-27 |
| 6504305 | Fluorescent lamp | Kazuaki Ohkubo, Masanori Shimizu, Takeshi Arakawa | 2003-01-07 |