Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7896983 | Hollow stabilizer and method of manufacturing the same | Hiroshi Koyama, Masato Sugawara, Jun Umeno, Hiroshi Machida, Hiroshi Masuya +4 more | 2011-03-01 |
| 6871865 | Hollow stabilizer | Tsutomu Furuyama, Hiroshi Koyama, Yoshihiro Koshita, Jun Umeno | 2005-03-29 |
| 6736565 | Ball joint and assembling method therefor | Tadayuki Kojima, Mitsuhiro Dekune | 2004-05-18 |