Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6624594 | Discharge lamp lighting circuit | Hitoshi Takeda, Masayasu Ito | 2003-09-23 |
| 6617808 | Discharge-lamp lighting circuit | Masayasu Ito, Hitoshi Takeda | 2003-09-09 |
| 6583570 | Discharge lamp device for vehicle | Masayasu Ito, Hiroshi Takeda, Shuji Matsuura, Hiroki Ishibashi, Akihiro Matsumoto | 2003-06-24 |
| 6531428 | Low phosphorous engine oil composition and additive compositions | Morikuni Nakazato, Jiro Magarifuchi, Hiroshi Tanabe | 2003-03-11 |