Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D297433 | Tractor | Shigeaki Okuyama, Norimi Nakamura, Osami Fujiwara, Genichi Funabashi | 1988-08-30 |
| 4671376 | Automatic differential locking system for a working vehicle | Katsumi Ito, Shigeaki Okuyama, Norimi Nakamura, Yoshizo Kuroiwa, Kouji Fujiwara +3 more | 1987-06-09 |