Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6577073 | Led lamp | Masanori Shimizu, Tetsushi Tamura, Hideo Nagai, Nobuyuki Matsui | 2003-06-10 |
| 6570342 | Fluorescent lamp and power converter | Kazuaki Okubo, Yoshinori Tanabe, Masanori Shimizu, Takeshi Arakawa | 2003-05-27 |