Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6346752 | Electromagnetic retarder with a built-in exciter | Masahiro Osada, Ryuji Rouyama | 2002-02-12 |
| 5488279 | Dual power refrigerator | Takato Kawamoto, Makoto Gezima | 1996-01-30 |