Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11713009 | Electric junction box | Hideki Kawamura, Minoru Umezaki, Toshiki Yagi | 2023-08-01 |
| 11469581 | Resin structure | Hideki Kawamura, Minoru Umezaki, Ko Fujimoto | 2022-10-11 |
| 11431158 | Resin structure | Hideki Kawamura, Minoru Umezaki, Ko Fujimoto | 2022-08-30 |
| 11381066 | Resin structure | Hideki Kawamura, Minoru Umezaki, Naoki Tozuka | 2022-07-05 |
| 11377051 | Electric junction box | Hideki Kawamura, Minoru Umezaki, Toshiki Yagi | 2022-07-05 |
| 11380508 | Electric connection box | Hideki Kawamura, Minoru Umezaki, Keiichi Sugiyama | 2022-07-05 |
| 11205889 | Electric junction box | Hideki Kawamura, Minoru Umezaki, Kenta Kamiya, Junya Masuda | 2021-12-21 |
| 11114829 | Electric connection box | Hideki Kawamura, Minoru Umezaki, Keiichi Sugiyama | 2021-09-07 |
| 11038330 | Electric connection box | Hideki Kawamura, Minoru Umezaki, Junya Masuda | 2021-06-15 |
| 11031761 | Resin structure | Hideki Kawamura, Minoru Umezaki, Ko Fujimoto | 2021-06-08 |
| D739153 | Bicycle saddle | — | 2015-09-22 |