Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6146281 | Outer joint part of a constant velocity ball joint | Mitsumasa Iijima, Masao Sakamoto | 2000-11-14 |
| 5970776 | Apparatus for forming a cup-shaped cage | Mitsumasa Iijima, Masao Sakamoto | 1999-10-26 |