Issued Patents 2003
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6670780 | Method for operating high-pressure discharge lamp, lighting apparatus, and high-pressure discharge lamp apparatus | Shunsuke Ono, Masahiro Yamamoto, Minoru Ozasa | 2003-12-30 |
| 6639343 | Mercury-free metal halide lamp | Kiyoshi Takahashi, Yuriko Kaneko, Hideaki Kiryu | 2003-10-28 |
| 6634940 | Prize acquisition game machine and it's prize | Koki Imai | 2003-10-21 |
| 6615499 | Method for producing cerium oxide, cerium oxide abrasive, method for polishing substrate using the same and method for manufacturing semiconductor device | Jun Matsuzawa, Atsushi Sugimoto, Keizou Hirai, Toranosuke Ashizawa, Yuuto Ootsuki | 2003-09-09 |
| 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 |
| 6573656 | High-pressure discharge lamp and method for producing the same | Yuriko Kaneko, Kiyoshi Takahashi, Hideaki Kiryu | 2003-06-03 |