Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6667356 | Rubber composition | Daisuke Nohara, Jingo Shirasaka, Akinori Oka, Ken Sonogi | 2003-12-23 |
| 6515055 | Rubber composition | Daisuke Nohara, Jingo Shirasaka, Akinori Oka, Ken Sonogi | 2003-02-04 |