Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7886790 | Run-flat tire | Hiroyuki Yokokura, Hidenobu Akahane, Daisuke Maehara, Masahiko Yamamoto | 2011-02-15 |
| 7017633 | Safety tire with expansion-deforming toric air bag | Yuji Yamaguchi, Masahiko Yamamoto, Osamu Saito, Tetsuhito Tsukagoshi | 2006-03-28 |