Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4910824 | Floor polisher | Eiji Nagayama, Tetuichi Turumi, Ken Ikezawa, Tetu Arai, Takashi Ohta | 1990-03-27 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4910824 | Floor polisher | Eiji Nagayama, Tetuichi Turumi, Ken Ikezawa, Tetu Arai, Takashi Ohta | 1990-03-27 |