Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4463473 | Vacuum cleaner | Seiichi Nakada, Hiromi Yoshikawa, Hiroshi Ohno, Hiroshi Kawakami | 1984-08-07 |
| 4446595 | Upright vacuum cleaner | Seiichi Nakada, Hiroshi Ohno, Hiroshi Kawakami | 1984-05-08 |