Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8876095 | Coil spring | Nobuharu Kato, Hirotaka Yamada, Jinetsu Kano | 2014-11-04 |
| 8684342 | Coil spring | Daniel Fenioux, Nobuharu Kato | 2014-04-01 |
| 8025039 | Valve spring device and valve train of internal combustion engine using the same | Kazuo Iwata, Noritoshi Takamura, Jun Tominaga, Norihiro Tajima | 2011-09-27 |
| 6024346 | Coil spring resistant to permanent set and fatigue | Noritoshi Takamura, Mitsutoshi Kaneyasu, Michihiko Ayada | 2000-02-15 |