Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805979 | Transfer film and process for producing organic electroluminescent device using the same | Shinji Yamana, Tomonori Akai | 2004-10-19 |
| 6739424 | Speaker system | Kosaku Murata | 2004-05-25 |
| 6731718 | Radiographic apparatus | Keiichi Kawasaki, Akira Hirai | 2004-05-04 |
| 6690493 | Photoelectric conversion device and driving method therefor | Isao Kobayashi, Yutaka Endo, Noriyuki Kaifu, Toshio Kameshima, Toshikazu Tamura +1 more | 2004-02-10 |