Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10358008 | Suspension coil spring | Kenji Yamamotoya, Hideto Enomoto, Ken Takahashi, Toshiaki Sato, Mitsuhiro Sugiyama +6 more | 2019-07-23 |
| 9713946 | Strut-type suspension and compression coil spring for suspension | Kenji Yamamotoya, Hideto Enomoto, Ken Takahashi, Toshiaki Sato, Mitsuhiro Sugiyama +6 more | 2017-07-25 |
| 9463676 | Suspension and compression coil spring for suspension | Kenji Yamamotoya, Hideto Enomoto, Ken Takahashi, Toshiaki Sato, Mitsuhiro Sugiyama +6 more | 2016-10-11 |