Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1096050 | Wheelbarrow | Wataru Suzuki, Susumu Kato, Tomonobu Nashimoto, Yasuo Ifuku | 2025-09-30 |
| 11801882 | Handcart | Tomoyuki KUTSUNA, Susumu Kato, Tomonobu Nashimoto, Kohei Oishi | 2023-10-31 |
| 11390310 | Handcart | Tomoyuki KUTSUNA, Susumu Kato, Tomonobu Nashimoto, Kohei Oishi | 2022-07-19 |
| 8707928 | Lubrication apparatus for four-stroke engine | Masaki Sugiyama, Masaki Kurimoto, Hiroshi Kubota, Tetsuya Hasegawa | 2014-04-29 |
| 8701622 | Lubrication system for portable four-stroke engine | Masaki Sugiyama, Masaki Kurimoto, Hiroshi Kubota | 2014-04-22 |
| 8695563 | Lubrication system for four-stroke engine | Masaki Sugiyama, Masaki Kurimoto, Hiroshi Kubota | 2014-04-15 |