Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4721031 | Tractor cabin | Masaru Nakata, Kenichi Sato, Isama Kawai, Katsumi Ohishi, Mitsuhiko Obe +2 more | 1988-01-26 |
| 4650242 | Tractor cabin | Mitsuhiko Obe, Isamu Kawai, Masaru Nakata, Katumi Oisi, Yosaburo Shimizu +6 more | 1987-03-17 |