Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7870806 | Ball screw device | Akimasa Yoshida, Hiroshi Niwa | 2011-01-18 |
| 7350434 | Ball screw device | Akimasa Yoshida, Hiroshi Niwa | 2008-04-01 |
| 6616335 | Rolling element spacer in rolling guide device | Hiroshi Niwa, Yasuyuki Abe, Kiyomi Tamura | 2003-09-09 |
| 6575632 | Roller retainer, roller screw using roller retainer and rolling guide apparatus using roller retainer | Takahiro Kawaguchi, Tadashi Hirokawa, Osamu Maruyama, Shino Kimura | 2003-06-10 |
| 6513978 | Rolling element spacers for rolling guide units | Takeki Shirai, Hiroshi Niwa, Yasuyuki Abe, Kiyomi Tamura | 2003-02-04 |