Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6826932 | Drum-type washing machine | Yasuaki Sonoda, Hiroshi Yamamoto, Yasuhiko Yokoi | 2004-12-07 |
| 6782722 | Drum washing machine | Yasuhiko Yokoi, Hiroshi Yamamoto, Yasuaki Sonoda | 2004-08-31 |