Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11472665 | Elevator car position detection sensor that determines a phase of an alternating-current voltage corresponding to a frequency of an excitation magnetic field | Keita Mochizuki, Masahiro Ishikawa, Akihide Shiratsuki | 2022-10-18 |
| 11345568 | Cage position detection device | Akihide Shiratsuki, Keita Mochizuki, Masahiro Ishikawa | 2022-05-31 |
| 11319187 | Elevator car position detection device | Keita Mochizuki, Masahiro Ishikawa, Akihide Shiratsuki | 2022-05-03 |