Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5813086 | Carpet cleaner and method for cleaning carpets | Saburo Ueno, Sumio Morikawa | 1998-09-29 |
| 5385311 | Breaking equipment | Sumio Morikawa, Toshiji Ohga, Nobuyuki Zakohji | 1995-01-31 |
| 5359775 | Steel-material shearing machine | Sumio Morikawa | 1994-11-01 |