Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6517154 | Shock-reducing restraint | — | 2003-02-11 |
| 6183044 | Child seat | Toshiro Koyanagi, Koji Hiramatsu, Tsuyoshi Fujiwara, Toshiaki Iwasaki, Atsushi Hiroshige +1 more | 2001-02-06 |