Issued Patents 2018
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9943220 | Tubular insertion system | Eiji Yamamoto, Hiromasa Fujita, Jun Hasegawa | 2018-04-17 |
| 9903709 | Insertion portion detection device and insertion portion detection system | Ryo TOJO, Eiji Yamamoto | 2018-02-27 |