Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5705446 | Wide endless belt | Kazutoshi Fujishiro, Yasuo Sumiyoshi, Hiroshi Katsura | 1998-01-06 |
| 5394646 | System for automatically cultivating crops in a greenhouse | Yasuo Sumiyoshi, Nobuo Sakurai, Yoshinori Furukawa, Hisaaki Omoto | 1995-03-07 |
| 5303505 | System for automatically cultivating crops in a greenhouse | Yasuo Sumiyoshi, Nobuo Sakurai, Yoshinori Furukawa, Hisaaki Omoto | 1994-04-19 |
| 4861403 | Method of fabricating a double-toothed belt | Keiichi Yoshimi, Shigeo Goto | 1989-08-29 |