Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10578145 | Washer-equipped screw | Takeshi Fujihara, Satoshi Iguchi, Keizo Takamatsu, Hidetoshi Uchiyama, Yuya Okuda +1 more | 2020-03-03 |
| 10544820 | Washer-equipped screw | Takeshi Fujihara, Satoshi Iguchi, Yuya Okuda, Shuichi Iwata, Keita Inoue +1 more | 2020-01-28 |