Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4704184 | Apparatus in the form of a die assembly for building a laminated core | — | 1987-11-03 |
| 4615207 | Progressive metal mold apparatus for production of laminated iron cores | Tomoaki Koga, Eiji Imoto | 1986-10-07 |
| 4597168 | Method and apparatus for producing laminated iron cores | Tomoaki Koga, Eiji Imoto | 1986-07-01 |