Hokari; Sadao
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hokari; Sadao.The latest application filed is for "elevator communications apparatus".
- Hokari; Sadao - Hitachinaka JP
- Hokari; Sadao - Katsuta JP
| Patent | Date |
|---|---|
| Elevator communications apparatus Grant 6,481,531 - Nagura , et al. November 19, 2 | 2002-11-19 |
| Elevator Communications Apparatus App 20020157903 - Nagura, Hirokazu ; et al. | 2002-10-31 |
| Charger for elevator call devices Grant 6,408,986 - Ayano , et al. June 25, 2 | 2002-06-25 |
| Elevator App 20020023802 - Ayano, Hideki ; et al. | 2002-02-28 |
| Driving system for driving AC motor App 20020005704 - Yoshikawa, Toshifumi ; et al. | 2002-01-17 |
| Elevator system Grant 5,389,749 - Hokari , et al. February 14, 1 | 1995-02-14 |
| Power converter with current-type inverter Grant 5,155,671 - Inaba , et al. October 13, 1 | 1992-10-13 |
| Apparatus and method for controlling switching elements in a PWN-controlled voltage source inverter Grant 4,924,373 - Inaba , et al. May 8, 1 | 1990-05-08 |
| Apparatus for controlling power transducers of the pulse width modulation (PWM) control type Grant 4,829,416 - Inaba , et al. May 9, 1 | 1989-05-09 |
| Current-type converter apparatus Grant 4,787,021 - Hokari , et al. November 22, 1 | 1988-11-22 |
| Apparatus for compensating reactive power by current-source type converter Grant 4,780,660 - Shima , et al. October 25, 1 | 1988-10-25 |
| Controller for AC elevator Grant 4,661,757 - Hokari , et al. April 28, 1 | 1987-04-28 |
| Controller for elevator Grant 4,553,640 - Inaba , et al. November 19, 1 | 1985-11-19 |
| Method and apparatus for detecting elevator car position Grant 4,387,436 - Katayama , et al. June 7, 1 | 1983-06-07 |
| AC Elevator control system Grant 4,319,665 - Komuro , et al. March 16, 1 | 1982-03-16 |
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