Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9352937 | Escalator step and escalator having thereof | Shigeo Nakagaki, Kosei Kamimura, Yoshinobu Ishikawa, Takayuki Kikuchi, Satoshi Yamaguchi | 2016-05-31 |
| 9309093 | Escalator step and escalator having thereof | Shigeo Nakagaki, Kosei Kamimura, Yoshinobu Ishikawa, Takayuki Kikuchi, Satoshi Yamaguchi | 2016-04-12 |