Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6595149 | Planting device for planting a seedling-growing tape in the field | Yoshiaki Watanabe, Katsuhisa Ichikawa, Yasumi Fukuzumi, Shigetaka Isoyama | 2003-07-22 |
| 6460473 | Seedling-growing tape and method of manufacturing the same | Yoshiaki Watanabe, Katsuhisa Ichikawa, Yasumi Fukuzumi, Shigetaka Isoyama | 2002-10-08 |
| 6240674 | Seedling raising sheet, method of manufacturing same, seedling raising method, culturing method, and transplanter | Tsuneo Otake, Yasumi Fukuzumi, Yoshiaki Watanabe, Shigetaka Isoyama, Masashi Numabe | 2001-06-05 |
| 6132139 | Water level regulating device for paddy field | Taisuke Hashimoto, Kiminori Takao | 2000-10-17 |