Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7093758 | Tire marking system | Masamichi Oyama | 2006-08-22 |
| 4474726 | Method of producing a channeled plastic pipe with closed channel ends | Ryozo Ohta, Hishayoshi Toyoshima, Jun Yoshikawa | 1984-10-02 |