Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6608444 | Mercury-free high-intensity discharge lamp operating apparatus and mercury-free metal halide lamp | Ryo Minamihata, Kiyoshi Takahashi, Yuriko Kaneko, Mamoru Takeda, Hideaki Kiryu +1 more | 2003-08-19 |
| 6586891 | High-intensity discharge lamp and high-intensity discharge lamp operating apparatus | Yuriko Kaneko, Kiyoshi Takahashi, Ryo Minamihata, Mamoru Takeda, Hideaki Kiryu | 2003-07-01 |
| 6583564 | Discharge lamp with light-intercepting film bands | Hideaki Kiryu | 2003-06-24 |