Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6183159 | Automotive soil treating machine | Hisayoshi Hashimoto, Fujio Sato, Yasuharu Yamamoto, Toshikazu Murai, Fumiki Nakagiri +6 more | 2001-02-06 |
| 6171030 | Soil improving machine with excavating means | Shigehiko Miyake, Hisayoshi Hashimoto, Toshikazu Murai, Takami Kusaki, Hiroyosi Itaya +2 more | 2001-01-09 |