Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6249925 | Bridge of shock-absorbing construction | Hiromu Ishida, Yasushi Kamihigashi, Kenji Kubota, Tadashi Kanno, Yujiro Matsuyama +3 more | 2001-06-26 |
| 6085878 | Impact absorber made of resin | Yoshio Araki, Yujiro Matsuyama, Kiyoshi Negishi, Chisato Nonomura | 2000-07-11 |
| 5551673 | Resin shock absorber | Hironobu Furusawa, Tokio Kokubu, Hitoshi Ueno | 1996-09-03 |