Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481521 | Under-cart type guided tractor | Kazunori Ooishi | 2002-11-19 |
| 6127618 | Karaoke apparatus improving separation between microphone signal and microphone sound effect signal | — | 2000-10-03 |
| 5672947 | Automatic guide method for vehicles | Yukio Hisada, Hiromi Otake, Tadashi Ike | 1997-09-30 |
| 5525884 | Automatically guided vehicle | Noriyasu Sugiura, Yukio Hisada, Tadashi Ike | 1996-06-11 |