Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8839565 | Extruded vehicle door sash | Takayuki Okada, Jun Makita, Kenji Shimizu, Atsuo Noda, Kazuyoshi Yokota | 2014-09-23 |
| 8172125 | Vehicle door frame and method of producing the same | Takayuki Okada, Kenji Shimizu, Masaki Koyama | 2012-05-08 |