Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5186082 | Ironing punch for making socket of ball-and-socket joint and method of manufacturing such ironing punch | Toshio Maki | 1993-02-16 |
| 4739644 | Process for forming internal gear profile cup-shaped member and apparatus therefor | Toshio Maki, Kaoru Yamanoi | 1988-04-26 |