Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9664223 | Seizure prevention bolt | Kenya Yamada, Kazuhiro Koga | 2017-05-30 |
| 9022710 | Anti-seizing nut | Kenya Yamada, Sadayoshi Hasegawa, Satoshi Iida | 2015-05-05 |
| 9004834 | Female screw component and fastening component utilizing the same | Seiichi Toyonaga, Satoshi Fujiura, Kouichirou Kouguchi, Yoshihiro Murase, Masahito Iwata +1 more | 2015-04-14 |
| 8632288 | Anti cross-thread bolt | Sadayoshi Hasegawa | 2014-01-21 |