Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9212714 | Fiber reinforced plastic spring | Ryohei Shigematsu | 2015-12-15 |
| 9174558 | Seat operating device and vehicle seat | Ryohei Shigematsu, Takafumi Hirata, Takeshi Nakamura, Hiroshi Yagame, Hironobu Okamura | 2015-11-03 |
| 8864117 | Fiber-reinforced plastic spring | Ryohei Shigematsu | 2014-10-21 |