Sadao Hokari

Person

Katsuta, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Elevator communications apparatus
- Patent number 6,481,531
- Issue date Nov 19, 2002
- Hitachi, Ltd.
- Hirokazu Nagura
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Charger for elevator call devices
- Patent number 6,408,986
- Issue date Jun 25, 2002
- Hitachi, Ltd.
- Hideki Ayano
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Elevator system
- Patent number 5,389,749
- Issue date Feb 14, 1995
- Hitachi, Ltd.
- Sadao Hokari
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power converter with current-type inverter
- Patent number 5,155,671
- Issue date Oct 13, 1992
- Hitachi Ltd.
- Hiromi Inaba
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Apparatus and method for controlling switching elements in a PWN-co...
- Patent number 4,924,373
- Issue date May 8, 1990
- Hitachi, Ltd.
- Hiromi Inaba
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Apparatus for controlling power transducers of the pulse width modu...
- Patent number 4,829,416
- Issue date May 9, 1989
- Hitachi, Ltd.
- Hiromi Inaba
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Current-type converter apparatus
- Patent number 4,787,021
- Issue date Nov 22, 1988
- Hitachi, Ltd.
- Sadao Hokari
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Apparatus for compensating reactive power by current-source type co...
- Patent number 4,780,660
- Issue date Oct 25, 1988
- Hitachi, Ltd.
- Seiya Shima
- G01 - MEASURING TESTING
Information Patent Grant
Controller for AC elevator
- Patent number 4,661,757
- Issue date Apr 28, 1987
- Hitachi, Ltd.
- Sadao Hokari
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Controller for elevator
- Patent number 4,553,640
- Issue date Nov 19, 1985
- Hitachi, Ltd.
- Hiromi Inaba
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Method and apparatus for detecting elevator car position
- Patent number 4,387,436
- Issue date Jun 7, 1983
- Hitachi, Ltd.
- Yasunori Katayama
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Abnormal elevator speed detector
- Patent number 4,378,059
- Issue date Mar 29, 1983
- Hitachi, Ltd.
- Takanobu Hatakeyama
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
AC Elevator control system
- Patent number 4,319,665
- Issue date Mar 16, 1982
- Hitachi, Ltd.
- Katsu Komuro
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Three phase controlling system
- Patent number 4,101,819
- Issue date Jul 18, 1978
- Hitachi, Ltd.
- Yasuyuki Maeda
- G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

Information Patent Application
ELEVATOR COMMUNICATIONS APPARATUS
- Publication number 20020157903
- Publication date Oct 31, 2002
- Hitachi, Ltd.
- Hirokazu Nagura
- B66 - HOISTING LIFTING HAULING
Information Patent Application
Elevator
- Publication number 20020023802
- Publication date Feb 28, 2002
- Hideki Ayano
- B66 - HOISTING LIFTING HAULING

Sadao Hokari

Person

Patents Grantslast 30 patents

Elevator communications apparatus

Charger for elevator call devices

Elevator system

Power converter with current-type inverter

Apparatus and method for controlling switching elements in a PWN-co...

Apparatus for controlling power transducers of the pulse width modu...

Current-type converter apparatus

Apparatus for compensating reactive power by current-source type co...

Controller for AC elevator

Controller for elevator

Method and apparatus for detecting elevator car position

Abnormal elevator speed detector

AC Elevator control system

Three phase controlling system

Patents Applicationslast 30 patents

ELEVATOR COMMUNICATIONS APPARATUS

Elevator