Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11634304 | Elevator renewal method and elevator auxiliary panel | — | 2023-04-25 |
| 11305967 | Elevator renewal construction method and elevator control panel | Chikashi YOSHIMURA, Mugihei Tanaka | 2022-04-19 |
| 9114956 | Elevator modification work apparatus | Shigenobu Kawakami, Hiroshi Narasada | 2015-08-25 |
| 9090435 | Elevator hoisting machine and elevator hoisting machine manufacturing method | Shigenobu Kawakami, Hiroshi Narasada | 2015-07-28 |
| 7022238 | Immersion type membrane filter | Tamiyuki Eguchi, Shiro Tanso, Naoki Murakami, Nobuo Hayashi | 2006-04-04 |
| 6230845 | Moveable control panel for elevators | Shigeki Yamakawa, Hiroyuki Takagi, Junichiro Ishikawa, Tatsushi Takahashi, Tomohiko Yao | 2001-05-15 |