Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12073515 | Information processing apparatus, display system, display method, and non-transitory computer readable medium storing program | Kazunori Ohashi, Nobuyuki MINAGAWA | 2024-08-27 |
| 5547059 | Linear motor elevator system | Toshiaki Ishii, Masamoto Mizuno, Kazuhiko Sugita | 1996-08-20 |
| 5131507 | Hydraulic elevator control apparatus using VVVF to determine the electric drive motor rotational speed | — | 1992-07-21 |
| 5038894 | Drive control apparatus | — | 1991-08-13 |
| 4979593 | Elevator controller | Masahiro Noda | 1990-12-25 |
| 4935684 | Control system for induction motor | — | 1990-06-19 |
| 4789049 | Signal transmitting equipment for elevator | Takesi Sakurada | 1988-12-06 |
| 4756398 | Passenger conveyor apparatus | Shigeo Matsueda, Shigeharu Kitamura | 1988-07-12 |
| 4748394 | Control apparatus for escalator | — | 1988-05-31 |
| 4738346 | Driving unit for passenger conveyor system | Shigeo Matsueda, Takeshi Sakurada | 1988-04-19 |
| 4711335 | Display device for an escalator | — | 1987-12-08 |
| 4678063 | Apparatus for controlling an elevator | Takashi Kitaoka | 1987-07-07 |
| 4666020 | Control apparatus for elevator | — | 1987-05-19 |
| 4642474 | Elevator rescue apparatus during stoppage of power supply | — | 1987-02-10 |
| 4567419 | Control apparatus for elevator | — | 1986-01-28 |
| 4520906 | Control apparatus for elevator | — | 1985-06-04 |
| 4516665 | Elevator control system | — | 1985-05-14 |
| 4506766 | Method and apparatus for fault time operating of an elevator _ | — | 1985-03-26 |
| 4503940 | Variable-voltage variable-frequency elevator control apparatus | — | 1985-03-12 |
| 4434873 | Electric elevator car driving device | Kazutoshi Ohta | 1984-03-06 |
| 4399892 | Thyristor Leonard type elevator control system | — | 1983-08-23 |
| 4337846 | Elevator relevelling control apparatus | Masashi Yonemoto | 1982-07-06 |
| 4293889 | Device for grounding an elevator winder | — | 1981-10-06 |
| 4288729 | Control system for D.C. electric motor | Nobuo Anzai | 1981-09-08 |
| 4287551 | Elevator traction machine | — | 1981-09-01 |