Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11121603 | Drive unit | Ryoji Tomokage, Masahiro Shimada, Naoki Honishi, Takashi Omura | 2021-09-14 |
| 10457133 | Vehicle and drive circuit unit | Ryoji Tomokage, Masahiro Shimada | 2019-10-29 |
| 10349546 | Drive circuit unit | Ryoji Tomokage, Yasuhiro Ozuchi, Masahiro Shimada, Naoki Honishi, Takashi Omura | 2019-07-09 |
| 4702024 | Helical dredge cutter head with scoop-in plates | Toyoaki Shiba, Keishi Ito | 1987-10-27 |
| 4244450 | Group supervisory system of elevator cars | Yasukazu Umeda, Toshiyuki Kamohara, Shintaro Tsuji, Yoshio Miyanishi | 1981-01-13 |