Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4967609 | Flexible boot | Eitaro Takagi, Nobuyuki Ito | 1990-11-06 |
| D297675 | Electric vacuum cleaner | Nobuhiro Umehara, Toshiaki Sato, Atsushi Shigemura | 1988-09-13 |
| D297475 | Electric vacuum cleaner | Nobuhiro Umehara, Toshiaki Sato, Atsushi Shigemura | 1988-08-30 |