Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6822159 | Dye-sensitized photoelectric conversion device | Masaaki Ikeda, Koichiro Shigaki, Shozo Yanagida | 2004-11-23 |
| 6766558 | Vacuum cleaner | Yukimichi Matsumoto, Hiroshi Ota | 2004-07-27 |
| 6742220 | Nozzle unit for vacuum cleaner | Kiyomu Nagai, Genji Kosaka, Nobuharu Hikida, Mikio Yagi, Shigenori Hato +3 more | 2004-06-01 |