Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5163202 | Dust detector for vacuum cleaner | Hiroshi Kawakami, Sadahiro Shimada, Mitsuo Ishii | 1992-11-17 |
| 4517757 | Electric iron with cord reel device | Tadamasa Nanbu | 1985-05-21 |